AC3->MP3 results in distortion/crackling/popping

HandBrake for Windows support
Forum rules
An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.
Post Reply
voochi
Posts: 7
Joined: Wed Apr 08, 2009 12:49 am

AC3->MP3 results in distortion/crackling/popping

Post by voochi »

I have been having an audio problem with many of my videos. The source audio streams are 5.1 AC3 streams (mkv) and the output audio stream is MP3 (avi). The output videos have a terrible popping/crackling/distortion sound, any time there is a loud event (like an explosion or gunshot).

I am guessing the problem is related to the low frequency channel, maybe it is overloading the lame encoder? Or perhaps just the overall volume of the AC3 input is overloading the encoder. I have tried all the combinations of mix (stereo, dolby, pro logic) as well as various DRC settings. None of them have worked.

Is there any previous experience of this? The wiki says something about this problem, and that Pro Logic II had to be 5.0 at one stage because otherwise there would be distortion. Is this still the case? I believe my problem is related. Is there anything I can do to stop it? I am just making portable encodes for my Archos so I just want to get rid of the LF channel if possible.

Thanks

Code: Select all

### CLI Query:  -i "D:\Videos\Video (720p).mkv" -t 1 -c 1 -o "D:\Video.avi" -f avi -w 640 -e ffmpeg -b 1200 -a 1 -E lame -B 128 -R 0 -6 stereo -D 1 -v 
#########################################
[01:16:50] hb_init: checking cpu count
[01:16:50] hb_init: starting libhb thread
HandBrake 0.9.3 (2008112300) - http://handbrake.fr/
2 CPUs detected
Opening D:\Videos\Video (720p).mkv...
[01:16:50] hb_scan: path=D:\Videos\Video (720p).mkv, title_index=1
[01:16:50] scan: trying to open with libdvdread
[01:16:50] dvd: not a dvd - trying as a stream/file instead
Input #0, matroska, from 'D:\Videos\Video (720p).mkv':
  Duration: 02:06:01.72, start: 0.000000, bitrate: N/A
    Stream #0.0(eng): Video: h264, yuv420p, 1280x534, 23.98 tb(r)
    Stream #0.1(eng): Audio: ac3, 48000 Hz, 5:1, s16
    Stream #0.2(eng): Subtitle: 0x0000
[01:16:50] scan: decoding previews for title 1
[01:16:50] scan: audio 0x1: AC-3, rate=48000Hz, bitrate=384000 English (AC3) (5.1 ch)
Scanning title 1...
[01:16:51] scan: 10 previews, 1280x534, 23.976 fps, autocrop = 0/0/0/0, aspect 2.40:1, PAR 1:1
[01:16:51] scan: title (0) job->width:1280, job->height:528
[01:16:51] libhb: scan thread found 1 valid title(s)
+ title 1:
  + vts 0, ttn 0, cells 0->0 (0 blocks)
  + duration: 02:06:01
  + size: 1280x534, aspect: 2.40, 23.976 fps
  + autocrop: 0/0/0/0
  + chapters:
    + 1: cells 0->0, 0 blocks, duration 02:06:01
  + audio tracks:
    + 1, English (AC3) (5.1 ch), 48000Hz, 384000bps
  + subtitle tracks:
Invalid sample rate 0, using input rate 48000
[01:16:51] 1 job(s) to process
[01:16:51] starting job
[01:16:51] job configuration:
[01:16:51]  * source
[01:16:51]    + D:\Videos\Video (720p).mkv
[01:16:51]    + title 1, chapter(s) 1 to 1
[01:16:51]    + container: matroska
[01:16:51]  * destination
[01:16:51]    + D:\Video.avi
[01:16:51]    + container: AVI
[01:16:51]  * video track
[01:16:51]    + decoder: h264
[01:16:51]    + frame rate: same as source (around 23.976 fps)
[01:16:51]    + dimensions: 1280 * 534 -> 640 * 272, crop 0/0/0/0
[01:16:51]    + encoder: FFmpeg
[01:16:51]      + bitrate: 1200 kbps, pass: 0
[01:16:51]  * audio track 0
[01:16:51]    + decoder: English (AC3) (5.1 ch) (track 1, id 1)
[01:16:51]      + bitrate: 384 kbps, samplerate: 48000 Hz
[01:16:51]    + mixdown: Stereo
[01:16:51]    + encoder: lame
[01:16:51]      + bitrate: 128 kbps, samplerate: 48000 Hz
[01:16:51] dvd: not a dvd - trying as a stream/file instead
[01:16:51] reader: first SCR 0
No accelerated IMDCT transform found
[01:16:51] enclame: opening libmp3lame
[01:16:51] muxavi: opening D:\Video.avi
[01:16:51] sync: expecting 181323 video frames
stryfewalker
Posts: 18
Joined: Thu Feb 18, 2010 4:26 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by stryfewalker »

I had this problem crop up with Handbrake .9.4. I'm surprised I couldn't find anymore information about it.

The situation was exactly like Voochi indicated where when there was a loud sound (in this case an extended explosion) there was extreme popping and crackling on the mp3 track. This was not present in the original ac3 files (of course) nor did it occur when I encoded the same material with AAC. This was a 1080p source that I was converting to a smaller size using constant quality, retaining the original ac3 but also encoding the audio into 256kb mp3 and the commentary to 192kb mp3 in an MKV container.

Code: Select all

### CLI Query:  -i "I:\bluray\STARTREK11D1AC\BDMV\STREAM\00000.m2ts" -t 1 -c 1 -o "H:\encodes\Star_Trek_2009_1080p_RF21.mkv" -f mkv --strict-anamorphic  -e x264 -q 21 -a 1,1,4 -E ac3,lame,lame -6 auto,auto,auto -R Auto,Auto,Auto -B 32,256,192 -D 0.0,0.0,0 -x b-adapt=2:rc-lookahead=50 -v 1

### User Query: False

#########################################

[23:53:45] hb_init: checking cpu count
[23:53:45] hb_init: starting libhb thread
HandBrake 0.9.4 (2009112300) - MinGW i386 - http://handbrake.fr
4 CPUs detected
Opening I:\bluray\STARTREK11D1AC\BDMV\STREAM\00000.m2ts...
[23:53:45] hb_scan: path=I:\bluray\STARTREK11D1AC\BDMV\STREAM\00000.m2ts, title_index=1
[23:53:45] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[23:53:45] dvd: not a dvd - trying as a stream/file instead
[23:53:45] file is MPEG Transport Stream with 192 byte packets offset 4 bytes
[23:53:45] hb_ts_stream_find_pids - found the following PIDS
[23:53:45]     Video PIDS : 
[23:53:45]       0x1011 type H.264 (0x1b)
[23:53:45]     Audio PIDS : 
[23:53:45]       0x1100 type LPCM (0x83)
[23:53:45]       0x1101 type AC-3 (0x81)
[23:53:45]       0x1102 type AC-3 (0x81)
[23:53:45]       0x1103 type AC-3 (0x81)
[23:53:45]       0x1200 type Unknown (0x90)
[23:53:45]       0x1201 type Unknown (0x90)
[23:53:45]       0x1202 type Unknown (0x90)
[23:53:45]       0x1203 type Unknown (0x90)
[23:53:45]       0x1204 type Unknown (0x90)
[23:53:45]       0x1205 type Unknown (0x90)
[23:53:45]       0x1206 type Unknown (0x90)
[23:53:45] transport stream pid 0x1100 (type 0x81) may be AC-3 audio (id 0x1)
[23:53:45] transport stream pid 0x1101 (type 0x81) may be AC-3 audio (id 0x2)
[23:53:45] transport stream pid 0x1102 (type 0x81) may be AC-3 audio (id 0x3)
[23:53:45] transport stream pid 0x1103 (type 0x81) may be AC-3 audio (id 0x4)
[23:53:45] transport stream pid 0x1200 (type 0x90) isn't audio
[23:53:45] transport stream pid 0x1201 (type 0x90) isn't audio
[23:53:45] transport stream pid 0x1202 (type 0x90) isn't audio
[23:53:45] transport stream pid 0x1203 (type 0x90) isn't audio
[23:53:45] transport stream pid 0x1204 (type 0x90) isn't audio
[23:53:45] transport stream pid 0x1205 (type 0x90) isn't audio
[23:53:45] transport stream pid 0x1206 (type 0x90) isn't audio
[23:53:45] transport stream doesn't seem to have video IDR frames
[23:53:45] scan: decoding previews for title 1
[23:53:45] scan: audio 0x4: AC-3, rate=48000Hz, bitrate=224000 Unknown (AC3) (2.0 ch)
[23:53:45] scan: audio 0x1: AC-3, rate=48000Hz, bitrate=640000 Unknown (AC3) (5.1 ch)
[23:53:45] scan: audio 0x2: AC-3, rate=48000Hz, bitrate=640000 Unknown (AC3) (5.1 ch)
[23:53:45] scan: audio 0x3: AC-3, rate=48000Hz, bitrate=640000 Unknown (AC3) (5.1 ch)
Scanning title 1...
Scanning title 1...
[h264 @ 0x157bf00]non-existing SPS 0 referenced in buffering period
[h264 @ 0x157bf00]non-existing PPS referenced
[h264 @ 0x157bf00]non-existing SPS 31 referenced in buffering period
[h264 @ 0x157bf00]non-existing PPS referenced
[h264 @ 0x157bf00]non-existing SPS 0 referenced in buffering period
[h264 @ 0x157bf00]non-existing PPS referenced
[h264 @ 0x157bf00]non-existing SPS 31 referenced in buffering period
[h264 @ 0x157bf00]non-existing PPS referenced
[h264 @ 0x157bf00]non-existing SPS 0 referenced in buffering period
[h264 @ 0x157bf00]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[h264 @ 0x15c6010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c6010]non-existing PPS referenced
[h264 @ 0x15c6010]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15c6010]non-existing PPS referenced
[h264 @ 0x15c6010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c6010]non-existing PPS referenced
[h264 @ 0x15c6010]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15c6010]non-existing PPS referenced
[h264 @ 0x15c6010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c6010]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[h264 @ 0x166a9b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 32 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
[h264 @ 0x166a9b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x166a9b0]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 31 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 32 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 31 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 31 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 32 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 31 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 31 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
[h264 @ 0x159a680]non-existing SPS 0 referenced in buffering period
[h264 @ 0x159a680]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[h264 @ 0x15c9810]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
[h264 @ 0x15c9810]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15c9810]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[h264 @ 0x15f5010]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15f5010]non-existing PPS referenced
[h264 @ 0x15f5010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5010]non-existing PPS referenced
[h264 @ 0x15f5010]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5010]non-existing PPS referenced
[h264 @ 0x15f5010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5010]non-existing PPS referenced
[h264 @ 0x15f5010]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5010]non-existing PPS referenced
[h264 @ 0x15f5010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5010]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[h264 @ 0x15f53b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
[h264 @ 0x15f53b0]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f53b0]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
...
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 32 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 31 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
[h264 @ 0x15f5c50]non-existing SPS 0 referenced in buffering period
[h264 @ 0x15f5c50]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[h264 @ 0x1669010]non-existing SPS 31 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
[h264 @ 0x1669010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
[h264 @ 0x1669010]non-existing SPS 31 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
[h264 @ 0x1669010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
[h264 @ 0x1669010]non-existing SPS 31 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
[h264 @ 0x1669010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
[h264 @ 0x1669010]non-existing SPS 31 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
[h264 @ 0x1669010]non-existing SPS 0 referenced in buffering period
[h264 @ 0x1669010]non-existing PPS referenced
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
Scanning title 1...
[23:53:55] scan: 10 previews, 1920x1080, 23.976 fps, autocrop = 140/140/0/0, aspect 16:9, PAR 1:1
[23:53:55] scan: title (0) job->width:1920, job->height:800
[23:53:55] stream: 38 good frames, 0 errors (0%)
[23:53:55] libhb: scan thread found 1 valid title(s)
+ title 1:
  + vts 0, ttn 0, cells 0->0 (0 blocks)
  + angle(s) 0
  + duration: 02:04:49
  + size: 1920x1080, pixel aspect: 1/1, display aspect: 1.78, 23.976 fps
  + autocrop: 140/140/0/0
  + chapters:
    + 1: cells 0->0, 0 blocks, duration 02:04:49
  + audio tracks:
    + 1, Unknown (AC3) (5.1 ch) (iso639-2: und), 48000Hz, 640000bps
    + 2, Unknown (AC3) (5.1 ch) (iso639-2: und), 48000Hz, 640000bps
    + 3, Unknown (AC3) (5.1 ch) (iso639-2: und), 48000Hz, 640000bps
    + 4, Unknown (AC3) (2.0 ch) (iso639-2: und), 48000Hz, 224000bps
  + subtitle tracks:
Invalid sample rate 0, using input rate 48000
Invalid sample rate 0, using input rate 48000
Invalid sample rate 0, using input rate 48000
[23:53:56] 1 job(s) to process
[23:53:56] starting job
[23:53:56] work: sanitizing track 1 mixdown Mono to Stereo
[23:53:56] work: sanitizing track 2 mixdown Mono to Stereo
[23:53:56] job configuration:
[23:53:56]  * source
[23:53:56]    + I:\bluray\STARTREK11D1AC\BDMV\STREAM\00000.m2ts
[23:53:56]    + title 1, chapter(s) 1 to 1
[23:53:56]  * destination
[23:53:56]    + H:\encodes\Star_Trek_2009_1080p_RF21.mkv
[23:53:56]    + container: Matroska (.mkv)
[23:53:56]  * video track
[23:53:56]    + decoder: h264
[23:53:56]      + bitrate 200 kbps
[23:53:56]    + frame rate: same as source (around 23.976 fps)
[23:53:56]    + strict anamorphic
[23:53:56]      + modulus: 0
[23:53:56]      + storage dimensions: 1920 * 1080 -> 1920 * 800, crop 140/140/0/0
[23:53:56]      + pixel aspect ratio: 1 / 1
[23:53:56]      + display dimensions: 1920 * 800
[23:53:56]    + encoder: x264
[23:53:56]      + options: b-adapt=2:rc-lookahead=50
[23:53:56]      + quality: 21.00 (RF)
[23:53:56]  * audio track 0
[23:53:56]    + decoder: Unknown (AC3) (5.1 ch) (track 1, id 1)
[23:53:56]      + bitrate: 640 kbps, samplerate: 48000 Hz
[23:53:56]    + AC3 passthrough
[23:53:56]  * audio track 1
[23:53:56]    + decoder: Unknown (AC3) (5.1 ch) (track 1, id 1)
[23:53:56]      + bitrate: 640 kbps, samplerate: 48000 Hz
[23:53:56]    + mixdown: Stereo
[23:53:56]    + encoder: lame
[23:53:56]      + bitrate: 256 kbps, samplerate: 48000 Hz
[23:53:56]  * audio track 2
[23:53:56]    + decoder: Unknown (AC3) (2.0 ch) (track 1, id 4)
[23:53:56]      + bitrate: 224 kbps, samplerate: 48000 Hz
[23:53:56]    + mixdown: Stereo
[23:53:56]    + encoder: lame
[23:53:56]      + bitrate: 192 kbps, samplerate: 48000 Hz
libdvdnav: Using dvdnav version 4.1.3
[23:53:56] encx264: keyint-min: 24, keyint-max: 240
[23:53:56] encx264: encoding with stored aspect 1/1
[23:53:56] encx264: Encoding at constant RF 21.000000
libdvdread: Encrypted DVD support unavailable.
x264 [info]: using SAR=1/1
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[23:53:56] dvd: not a dvd - trying as a stream/file instead
[23:53:56] reader: first SCR 963814 id 0 DTS 1044806
x264 [info]: using cpu capabilities: MMX2 SSE2Fast FastShuffle SSEMisalign LZCNT
x264 [info]: profile High, level 4.0
No accelerated IMDCT transform found
No accelerated IMDCT transform found
[23:53:56] enclame: opening libmp3lame
No accelerated IMDCT transform found
[23:53:56] enclame: opening libmp3lame
[23:53:56] sync: expecting 179596 video frames
[23:53:56] sync: first pts is 3754
[04:47:35] hb_ts_stream_decode - eof
[04:47:35] stream: 182464 good frames, 0 errors (0%)
[04:47:35] reader: done. 1 scr changes
[04:47:52] sync: got 182462 frames, 179596 expected
[04:47:52] work: average encoding speed for job is 10.345323 fps
[04:47:56] mux: track 0, 182462 frames, 5719920483 bytes, 6012.85 kbps, fifo 128
[04:47:56] mux: track 1, 237821 frames, 608821760 bytes, 640.00 kbps, fifo 1024
[04:47:56] mux: track 2, 317095 frames, 243530496 bytes, 256.00 kbps, fifo 1024
[04:47:56] mux: track 3, 317095 frames, 182647872 bytes, 192.00 kbps, fifo 1024
[04:47:56] h264-decoder done: 182463 frames, 0 decoder errors, 0 drops
[04:47:56] render: lost time: 0 (0 frames)
[04:47:56] render: gained time: 0 (0 frames) (0 not accounted for)
x264 [info]: frame I:1624  Avg QP:18.79  size:142802  PSNR Mean Y:45.97 U:48.33 V:49.77 Avg:46.73 Global:46.32
x264 [info]: frame P:70053 Avg QP:22.20  size: 39681  PSNR Mean Y:43.92 U:47.76 V:49.11 Avg:44.84 Global:44.10
x264 [info]: frame B:110785 Avg QP:23.27  size: 24446  PSNR Mean Y:42.39 U:46.55 V:48.14 Avg:43.43 Global:43.04
x264 [info]: consecutive B-frames:  5.5% 17.2% 63.4% 13.9%
x264 [info]: mb I  I16..4: 33.9% 46.6% 19.5%
x264 [info]: mb P  I16..4: 10.2% 18.9%  2.5%  P16..4: 37.1% 10.3%  6.0%  0.0%  0.0%    skip:15.1%
x264 [info]: mb B  I16..4:  6.5%  3.0%  0.5%  B16..8: 40.8%  0.7%  1.2%  direct: 8.7%  skip:38.6%  L0:44.6% L1:52.2% BI: 3.2%
x264 [info]: 8x8 transform intra:49.8% inter:69.3%
x264 [info]: coded y,uvDC,uvAC intra: 72.7% 68.4% 34.0% inter: 27.3% 29.1% 1.5%
x264 [info]: i16 v,h,dc,p: 17% 12% 42% 29%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 15% 31%  6%  6%  7%  7%  6%  7%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 15% 39%  5%  7%  6%  6%  4%  4%
x264 [info]: Weighted P-Frames: Y:4.2%
x264 [info]: ref P L0: 57.1% 12.9% 22.1%  7.0%  0.9%
x264 [info]: ref B L0: 85.5% 14.5%
x264 [info]: SSIM Mean Y:0.9624671
x264 [info]: PSNR Mean Y:43.011 U:47.028 V:48.522 Avg:44.003 Global:43.441 kb/s:6012.98
[04:47:56] libhb: work result = 0

Rip done!
HandBrake has exited.
randomreuben
Veteran User
Posts: 468
Joined: Mon Nov 02, 2009 2:18 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by randomreuben »

I can verify this bug. I have posted a log file at this post of mine from November 2009. http://forum.handbrake.fr/viewtopic.php?f=12&t=12926

I tried to re-encode a 5.1 AC3 source to 2.0 MP3 again with the new Handbrake 0.94 and the crackling noises are still there on the bass heavy scenes. (I can post the log files when I have access to my own computer this evening) It would be awesome if someone knowledgeable about the 5.1 AC3 to 2.0 MP3 process would give us a heads up about this bug or give this bug a look-see.

Thank you once again for Handbrake. It's awesome!
User avatar
Rodeo
HandBrake Team
Posts: 12737
Joined: Tue Mar 03, 2009 8:55 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by Rodeo »

From the other thread:
randomreuben wrote:This is not a problem in VLC because the sound is distorted when using FFMPEG Tryout + Haali Media Splitter. I have tried changing the various sound output modes in VLC but the distortion is still there. I have included the log file below.
Both solutions are ffmpeg-based (VLC and ffdshow tryouts).

Are any other people with the same issue using a similar (i.e. ffmpeg-based) setup for playback?

Edit: I can definitely reproduce the issue in VLC 1.0.5. That's a start.

Edit 2: My encode log:

Code: Select all

HandBrake Activity Log for /Users/tim/Desktop/The Lost World.mkv: 2010-02-19 23:46:57 +0100
Handbrake Version: svn3127 x86_64 (2010021901)

[23:46:57] macgui: Rip: Pending queue count is 0
[23:46:57] macgui: scanning specifically for title: 1
[23:46:57] macgui: performNewQueueScan currentQueueEncodeIndex is: 0
[23:46:57] hb_scan: path=/Volumes/LaCieDisk/excluded/DVD rips/The Lost World.dvdmedia, title_index=1
[23:46:57] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Couldn't find device name.
libdvdnav: Can't read name block. Probably not a DVD-ROM device.
libdvdnav: Unable to find map file '/Users/tim/.dvdnav/.map'
libdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
libdvdread: Encrypted DVD support unavailable.
libdvdread: Couldn't find device name.
[23:46:58] scan: DVD has 12 title(s)
[23:46:58] scan: scanning title 1
[23:46:58] scan: opening IFO for VTS 2
[23:46:58] pgc_id: 1, pgn: 1: pgc: 0x10c661730
[23:46:58] scan: vts=2, ttn=1, cells=0->20, blocks=0->2141475, 2141476 blocks
[23:46:58] scan: duration is 02:03:26 (7406000 ms)
[23:46:58] scan: checking audio 1
[23:46:58] scan: id=80bd, lang=English (AC3), 3cc=eng ext=0
[23:46:58] scan: checking audio 2
[23:46:58] scan: id=81bd, lang=English (AC3), 3cc=eng ext=0
[23:46:58] scan: checking audio 3
[23:46:58] scan: audio channel is not active
[23:46:58] scan: checking audio 4
[23:46:58] scan: audio channel is not active
[23:46:58] scan: checking subtitle 1
[23:46:58] scan: id=20bd, lang=English, 3cc=eng
[23:46:58] scan: checking subtitle 2
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 3
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 4
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 5
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 6
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 7
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 8
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 9
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 10
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 11
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 12
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 13
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 14
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 15
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 16
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: checking subtitle 17
[23:46:58] scan: subtitle channel is not active
[23:46:58] scan: title 1 has 20 chapters
[23:46:58] scan: chap 1 c=0->0, b=0->68513 (68514), 246296 ms
[23:46:58] scan: chap 2 c=1->1, b=68514->133031 (64518), 253423 ms
[23:46:58] scan: chap 3 c=2->2, b=133032->234980 (101949), 436726 ms
[23:46:58] scan: chap 4 c=3->3, b=234981->317211 (82231), 316556 ms
[23:46:58] scan: chap 5 c=4->4, b=317212->501305 (184094), 671812 ms
[23:46:58] scan: chap 6 c=5->5, b=501306->648774 (147469), 484534 ms
[23:46:58] scan: chap 7 c=6->6, b=648775->753366 (104592), 354434 ms
[23:46:58] scan: chap 8 c=7->7, b=753367->859927 (106561), 328338 ms
[23:46:58] scan: chap 9 c=8->8, b=859928->1051010 (191083), 638659 ms
[23:46:58] scan: chap 10 c=9->9, b=1051011->1201919 (150909), 472492 ms
[23:46:58] scan: chap 11 c=10->10, b=1201920->1341648 (139729), 449449 ms
[23:46:58] scan: chap 12 c=11->11, b=1341649->1441986 (100338), 317447 ms
[23:46:58] scan: chap 13 c=12->12, b=1441987->1537554 (95568), 320570 ms
[23:46:58] scan: chap 14 c=13->13, b=1537555->1732900 (195346), 604655 ms
[23:46:58] scan: chap 15 c=14->15, b=1732901->1882149 (149249), 488648 ms
[23:46:58] scan: chap 16 c=16->16, b=1882150->1905815 (23666), 77217 ms
[23:46:58] scan: chap 17 c=17->17, b=1905816->2010845 (105030), 342662 ms
[23:46:58] scan: chap 18 c=18->18, b=2010846->2037912 (27067), 96306 ms
[23:46:58] scan: chap 19 c=19->19, b=2037913->2067247 (29335), 119329 ms
[23:46:58] scan: chap 20 c=20->20, b=2067248->2141475 (74228), 386436 ms
[23:46:58] scan: aspect = 0
[23:46:58] scan: decoding previews for title 1
[23:46:58] scan: title angle(s) 1
[23:46:58] scan: audio 0x81bd: AC-3, rate=48000Hz, bitrate=192000 English (AC3) (Dolby Surround)
[23:46:58] scan: audio 0x80bd: AC-3, rate=48000Hz, bitrate=384000 English (AC3) (5.1 ch)
[23:46:59] scan: 30 previews, 720x576, 25.000 fps, autocrop = 12/20/10/6, aspect 16:9, PAR 64:45
[23:46:59] scan: title (0) job->width:704, job->height:384
[23:46:59] libhb: scan thread found 1 valid title(s)
[23:46:59] macgui: ScanDone state received from fQueueEncodeLibhb
[23:46:59] macgui: Preset: 51AC3toMP3
[23:46:59] macgui: processNewQueueEncode number of passes expected is: 1
[23:46:59] macgui: Start / Stop set to chapters
[23:46:59] macgui: prepareJob audiotrack 2 is: 0
[23:46:59] macgui: prepareJob exiting
[23:46:59] 1 job(s) to process
[23:46:59] starting job
[23:46:59] sync: expecting 10522 video frames
[23:47:00] job configuration:
[23:47:00]  * source
[23:47:00]    + /Volumes/LaCieDisk/excluded/DVD rips/The Lost World.dvdmedia
[23:47:00]    + title 1, chapter(s) 16 to 17
[23:47:00]  * destination
[23:47:00]    + /Users/tim/Desktop/The Lost World.mkv
[23:47:00]    + container: Matroska (.mkv)
[23:47:00]      + chapter markers
[23:47:00]  * video track
[23:47:00]    + decoder: mpeg2
[23:47:00]      + bitrate 9800 kbps
[23:47:00]    + frame rate: same as source (around 25.000 fps)
[23:47:00]    + strict anamorphic
[23:47:00]      + storage dimensions: 720 * 576 -> 704 * 544, crop 12/20/10/6, mod 16
[23:47:00]      + pixel aspect ratio: 64 / 45
[23:47:00]      + display dimensions: 1001 * 544
[23:47:00]    + encoder: x264
[23:47:00]      + quality: 23.00 (RF)
[23:47:00]  * audio track 0
[23:47:00]    + decoder: English (AC3) (5.1 ch) (track 1, id 80bd)
[23:47:00]      + bitrate: 384 kbps, samplerate: 48000 Hz
[23:47:00]    + mixdown: Dolby Pro Logic II
[23:47:00]    + encoder: lame
[23:47:00]      + bitrate: 128 kbps, samplerate: 48000 Hz
[23:47:00]  * audio track 1
[23:47:00]    + decoder: English (AC3) (5.1 ch) (track 1, id 80bd)
[23:47:00]      + bitrate: 384 kbps, samplerate: 48000 Hz
[23:47:00]    + mixdown: Dolby Pro Logic II
[23:47:00]    + encoder: ca_aac
[23:47:00]      + bitrate: 128 kbps, samplerate: 48000 Hz
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Couldn't find device name.
libdvdnav: Can't read name block. Probably not a DVD-ROM device.
libdvdnav: Unable to find map file '/Users/tim/.dvdnav/.map'
libdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
libdvdread: Encrypted DVD support unavailable.
libdvdread: Couldn't find device name.
[23:47:00] encx264: encoding with stored aspect 64/45
[23:47:00] encx264: Encoding at constant RF 23.000000
[23:47:00] reader: first SCR 574493291 id 224 DTS 574497973
x264 [info]: using SAR=64/45
[23:47:00] mpeg2: "Chapter 16" (16) at frame 0 time 3600
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
x264 [info]: profile High, level 3.0
No accelerated IMDCT transform found
[23:47:00] enclame: opening libmp3lame
[23:47:00] output track 0: ac3 in sync after skipping 1437 bytes
No accelerated IMDCT transform found
[23:47:00] output track 1: ac3 in sync after skipping 1437 bytes
[23:47:00] sync: first pts is 3600
[23:48:22] mpeg2: "Chapter 17" (17) at frame 1948 time 7016400
[23:54:50] reader: end of chapter 17 (media 17) reached at media chapter 18
[23:54:50] reader: done. 1 scr changes
[23:54:51] sync: got 10503 frames, 10522 expected
[23:54:51] work: average encoding speed for job is 22.319527 fps
[23:54:53] mpeg2 done: 10504 frames
[23:54:53] render: lost time: 0 (0 frames)
[23:54:53] render: gained time: 0 (0 frames) (0 not accounted for)
x264 [info]: frame I:92    Avg QP:20.13  size: 22651  PSNR Mean Y:45.71 U:48.21 V:49.17 Avg:46.47 Global:46.00
x264 [info]: frame P:6104  Avg QP:23.66  size:  6128  PSNR Mean Y:43.65 U:46.42 V:47.64 Avg:44.48 Global:43.98
x264 [info]: frame B:4308  Avg QP:25.62  size:  2058  PSNR Mean Y:42.62 U:45.69 V:47.11 Avg:43.52 Global:43.04
x264 [info]: consecutive B-frames: 29.4% 42.3% 12.3% 16.1%
x264 [info]: mb I  I16..4: 18.7% 62.1% 19.3%
x264 [info]: mb P  I16..4:  2.8%  6.9%  1.1%  P16..4: 44.2% 11.4%  6.3%  0.0%  0.0%    skip:27.3%
x264 [info]: mb B  I16..4:  0.1%  0.4%  0.1%  B16..8: 43.3%  0.9%  1.1%  direct: 1.7%  skip:52.4%  L0:35.8% L1:60.2% BI: 4.0%
x264 [info]: 8x8 transform intra:63.7% inter:80.2%
x264 [info]: coded y,uvDC,uvAC intra: 51.1% 58.0% 20.9% inter: 16.0% 22.5% 1.0%
x264 [info]: i16 v,h,dc,p: 47% 19%  7% 27%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 12% 24%  5%  7% 10%  6%  9%  5%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 16% 18%  5%  7%  9%  5%  7%  4%
x264 [info]: Weighted P-Frames: Y:2.3%
x264 [info]: ref P L0: 69.5% 10.4% 15.3%  4.5%  0.3%
x264 [info]: ref B L0: 90.5%  9.5%
x264 [info]: SSIM Mean Y:0.9773627
x264 [info]: PSNR Mean Y:43.243 U:46.140 V:47.435 Avg:44.108 Global:43.586 kb/s:920.67
[23:54:54] mux: track 0, 10504 frames, 48349579 bytes, 920.51 kbps, fifo 8
[23:54:54] mux: track 1, 17509 frames, 6724224 bytes, 128.02 kbps, fifo 256
[23:54:54] mux: track 2, 19697 frames, 7253265 bytes, 138.09 kbps, fifo 256
[23:54:54] libhb: work result = 0
One weird thing:

Code: Select all

[23:54:54] mux: track 0, 10504 frames, 48349579 bytes, 920.51 kbps, fifo 8
[23:54:54] mux: track 1, 17509 frames, 6724224 bytes, 128.02 kbps, fifo 256
[23:54:54] mux: track 2, 19697 frames, 7253265 bytes, 138.09 kbps, fifo 256
Track 1 is MP3 and track 2 is AAC. Since I used the same samplerate (48 kHz) for both tracks I would expect the same number of frames to be muxed, but that's not the case.

Edit 3: Well, did another encode with 4 different codecs (AC3 passthrough, AAC, Vorbis and MP3) and got a different number of frames for each, so that's unrelated to the issue.
randomreuben
Veteran User
Posts: 468
Joined: Mon Nov 02, 2009 2:18 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by randomreuben »

The crackling problem does not occur in the scenes where there are no explosions/gun shots/heavy bass, etc.

The crackling problem does occur when there are explosions/gun shots/heavy bass.

The crackling problem does not occur in the OGG 2.0 stereo and AAC 2.0 stereo downmixes (see attached logs).

The crackling problem does occur in the MP3 2.0 stereo downmixes.

Now I have only tested this problem with the 5.1 AC3 source, but I could do some tests with 2.0 AC3 sources and see if the problem still occurs, but I doubt it.

MP3 audio downmix log:

Code: Select all

### CLI Query:  -i "E:\dvd\dvd" -t 1 --angle 1 -c 1-40 -o "C:\mkv\dvd_mp3.mkv" -f mkv -w 720 --loose-anamorphic  -e ffmpeg -q 4 -a 1 -E lame -6 stereo -R 48 -B 320 -D 0 -v 2

### User Query: False

#########################################

[17:08:59] hb_init: checking cpu count
[17:08:59] hb_init: starting libhb thread
HandBrake 0.9.4 (2009112300) - MinGW i386 - http://handbrake.fr
2 CPUs detected
Opening E:\dvd\dvd...
[17:08:59] hb_scan: path=E:\dvd\dvd, title_index=1
[17:08:59] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
NAME OPEN FAILED
libdvdnav: Unable to find home directorylibdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
[17:08:59] scan: DVD has 1 title(s)
[17:08:59] scan: scanning title 1
[17:08:59] scan: opening IFO for VTS 1
[17:08:59] pgc_id: 1, pgn: 1: pgc: 0x312750
[17:08:59] scan: vts=1, ttn=1, cells=0->40, blocks=0->3123813, 3123814 blocks
[17:08:59] scan: duration is 02:32:03 (9123320 ms)
[17:08:59] scan: checking audio 1
[17:08:59] scan: id=80bd, lang=English (AC3), 3cc=eng ext=0
[17:08:59] scan: title 1 has 40 chapters
[17:08:59] scan: chap 1 c=0->0, b=0->137999 (138000), 382742 ms
[17:08:59] scan: chap 2 c=1->1, b=138000->215839 (77840), 252401 ms
[17:08:59] scan: chap 3 c=2->2, b=215840->275986 (60147), 196445 ms
[17:08:59] scan: chap 4 c=3->3, b=275987->353661 (77675), 241560 ms
[17:08:59] scan: chap 5 c=4->4, b=353662->422742 (69081), 224577 ms
[17:08:59] scan: chap 6 c=5->5, b=422743->509563 (86821), 270540 ms
[17:08:59] scan: chap 7 c=6->6, b=509564->578190 (68627), 206428 ms
[17:08:59] scan: chap 8 c=7->7, b=578191->616345 (38155), 125519 ms
[17:08:59] scan: chap 9 c=8->8, b=616346->747577 (131232), 366593 ms
[17:08:59] scan: chap 10 c=9->9, b=747578->859391 (111814), 344859 ms
[17:08:59] scan: chap 11 c=10->10, b=859392->925028 (65637), 185528 ms
[17:08:59] scan: chap 12 c=11->11, b=925029->973714 (48686), 138386 ms
[17:08:59] scan: chap 13 c=12->12, b=973715->1073139 (99425), 261459 ms
[17:08:59] scan: chap 14 c=13->13, b=1073140->1152681 (79542), 236376 ms
[17:08:59] scan: chap 15 c=14->14, b=1152682->1195258 (42577), 130483 ms
[17:08:59] scan: chap 16 c=15->15, b=1195259->1293213 (97955), 273535 ms
[17:08:59] scan: chap 17 c=16->16, b=1293214->1372500 (79287), 263695 ms
[17:08:59] scan: chap 18 c=17->17, b=1372501->1416083 (43583), 144506 ms
[17:08:59] scan: chap 19 c=18->19, b=1416084->1490590 (74507), 215549 ms
[17:08:59] scan: chap 20 c=20->20, b=1490591->1563080 (72490), 220527 ms
[17:08:59] scan: chap 21 c=21->21, b=1563081->1649243 (86163), 256551 ms
[17:08:59] scan: chap 22 c=22->22, b=1649244->1695120 (45877), 146232 ms
[17:08:59] scan: chap 23 c=23->23, b=1695121->1811860 (116740), 359748 ms
[17:08:59] scan: chap 24 c=24->24, b=1811861->1880322 (68462), 196322 ms
[17:08:59] scan: chap 25 c=25->25, b=1880323->1997787 (117465), 352671 ms
[17:08:59] scan: chap 26 c=26->26, b=1997788->2037832 (40045), 127513 ms
[17:08:59] scan: chap 27 c=27->27, b=2037833->2102854 (65022), 174543 ms
[17:08:59] scan: chap 28 c=28->28, b=2102855->2150832 (47978), 120377 ms
[17:08:59] scan: chap 29 c=29->29, b=2150833->2237697 (86865), 248481 ms
[17:08:59] scan: chap 30 c=30->30, b=2237698->2312391 (74694), 184469 ms
[17:08:59] scan: chap 31 c=31->31, b=2312392->2374454 (62063), 169279 ms
[17:08:59] scan: chap 32 c=32->32, b=2374455->2444034 (69580), 190336 ms
[17:08:59] scan: chap 33 c=33->33, b=2444035->2521009 (76975), 203457 ms
[17:08:59] scan: chap 34 c=34->34, b=2521010->2644350 (123341), 329577 ms
[17:08:59] scan: chap 35 c=35->35, b=2644351->2714174 (69824), 199493 ms
[17:08:59] scan: chap 36 c=36->36, b=2714175->2775872 (61698), 175579 ms
[17:08:59] scan: chap 37 c=37->37, b=2775873->2857992 (82120), 275491 ms
[17:08:59] scan: chap 38 c=38->38, b=2857993->2944234 (86242), 268503 ms
[17:08:59] scan: chap 39 c=39->39, b=2944235->3123619 (179385), 462913 ms
[17:08:59] scan: chap 40 c=40->40, b=3123620->3123813 (194), 53 ms
[17:08:59] scan: aspect = 0
[17:08:59] scan: decoding previews for title 1
[17:08:59] scan: title angle(s) 1
[17:08:59] scan: audio 0x80bd: AC-3, rate=48000Hz, bitrate=384000 English (AC3) (5.1 ch)
[17:08:59] scan: 10 previews, 720x480, 23.976 fps, autocrop = 58/62/0/0, aspect 16:9, PAR 32:27
[17:08:59] scan: title (0) job->width:720, job->height:304
[17:09:00] libhb: scan thread found 1 valid title(s)
+ title 1:
  + vts 1, ttn 1, cells 0->40 (3123814 blocks)
  + angle(s) 1
  + duration: 02:32:03
  + size: 720x480, pixel aspect: 32/27, display aspect: 1.78, 23.976 fps
  + autocrop: 58/62/0/0
  + chapters:
    + 1: cells 0->0, 138000 blocks, duration 00:06:23
    + 2: cells 1->1, 77840 blocks, duration 00:04:12
    + 3: cells 2->2, 60147 blocks, duration 00:03:16
    + 4: cells 3->3, 77675 blocks, duration 00:04:02
    + 5: cells 4->4, 69081 blocks, duration 00:03:45
    + 6: cells 5->5, 86821 blocks, duration 00:04:31
    + 7: cells 6->6, 68627 blocks, duration 00:03:26
    + 8: cells 7->7, 38155 blocks, duration 00:02:06
    + 9: cells 8->8, 131232 blocks, duration 00:06:07
    + 10: cells 9->9, 111814 blocks, duration 00:05:45
    + 11: cells 10->10, 65637 blocks, duration 00:03:06
    + 12: cells 11->11, 48686 blocks, duration 00:02:18
    + 13: cells 12->12, 99425 blocks, duration 00:04:21
    + 14: cells 13->13, 79542 blocks, duration 00:03:56
    + 15: cells 14->14, 42577 blocks, duration 00:02:10
    + 16: cells 15->15, 97955 blocks, duration 00:04:34
    + 17: cells 16->16, 79287 blocks, duration 00:04:24
    + 18: cells 17->17, 43583 blocks, duration 00:02:25
    + 19: cells 18->19, 74507 blocks, duration 00:03:36
    + 20: cells 20->20, 72490 blocks, duration 00:03:41
    + 21: cells 21->21, 86163 blocks, duration 00:04:17
    + 22: cells 22->22, 45877 blocks, duration 00:02:26
    + 23: cells 23->23, 116740 blocks, duration 00:06:00
    + 24: cells 24->24, 68462 blocks, duration 00:03:16
    + 25: cells 25->25, 117465 blocks, duration 00:05:53
    + 26: cells 26->26, 40045 blocks, duration 00:02:08
    + 27: cells 27->27, 65022 blocks, duration 00:02:55
    + 28: cells 28->28, 47978 blocks, duration 00:02:00
    + 29: cells 29->29, 86865 blocks, duration 00:04:08
    + 30: cells 30->30, 74694 blocks, duration 00:03:04
    + 31: cells 31->31, 62063 blocks, duration 00:02:49
    + 32: cells 32->32, 69580 blocks, duration 00:03:10
    + 33: cells 33->33, 76975 blocks, duration 00:03:23
    + 34: cells 34->34, 123341 blocks, duration 00:05:30
    + 35: cells 35->35, 69824 blocks, duration 00:03:19
    + 36: cells 36->36, 61698 blocks, duration 00:02:56
    + 37: cells 37->37, 82120 blocks, duration 00:04:35
    + 38: cells 38->38, 86242 blocks, duration 00:04:29
    + 39: cells 39->39, 179385 blocks, duration 00:07:43
    + 40: cells 40->40, 194 blocks, duration 00:00:00
  + audio tracks:
    + 1, English (AC3) (5.1 ch) (iso639-2: eng), 48000Hz, 384000bps
  + subtitle tracks:
    + 1, Closed Captions (iso639-2: eng) (Text)
[17:09:00] 1 job(s) to process
[17:09:00] starting job
[17:09:00] job configuration:
[17:09:00]  * source
[17:09:00]    + E:\dvd\dvd
[17:09:00]    + title 1, chapter(s) 1 to 40
[17:09:00]  * destination
[17:09:00]    + C:\mkv\dvd_mp3.mkv
[17:09:00]    + container: Matroska (.mkv)
[17:09:00]  * video track
[17:09:00]    + decoder: mpeg2
[17:09:00]      + bitrate 9000 kbps
[17:09:00]    + frame rate: same as source (around 23.976 fps)
[17:09:00]    + loose anamorphic
[17:09:00]      + modulus: 0
[17:09:00]      + storage dimensions: 720 * 480 -> 720 * 352, crop 58/62/0/0
[17:09:00]      + pixel aspect ratio: 139 / 120
[17:09:00]      + display dimensions: 834 * 352
[17:09:00]    + encoder: FFmpeg
[17:09:00]      + quality: 4.00 (QP)
[17:09:00]  * audio track 0
[17:09:00]    + decoder: English (AC3) (5.1 ch) (track 1, id 80bd)
[17:09:00]      + bitrate: 384 kbps, samplerate: 48000 Hz
[17:09:00]    + mixdown: Stereo
[17:09:00]    + encoder: lame
[17:09:00]      + bitrate: 320 kbps, samplerate: 48000 Hz
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
NAME OPEN FAILED
libdvdnav: Unable to find home directorylibdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
[17:09:00] encavcodec: encoding at constant quantizer 472
[17:09:00] encavcodec: encoding with stored aspect 139/120
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
No accelerated IMDCT transform found
[17:09:00] enclame: opening libmp3lame
[17:09:00] reader: first SCR 146 id 224 DTS 6505
[17:09:00] mpeg2: "" (1) at frame 0 time 3003
[17:09:00] sync: expecting 218764 video frames
[17:09:00] sync: first pts is 3003
[17:09:00] 1.351333s: Film -> Video
[17:09:00] 1.451433s: Video -> Film
[17:09:39] mpeg2: "" (2) at frame 9171 time 34426392
[17:10:04] mpeg2: "" (3) at frame 15220 time 57132075
[17:10:23] mpeg2: "" (4) at frame 19929 time 74809234
[17:10:47] mpeg2: "" (5) at frame 25722 time 96553957
[17:11:08] mpeg2: "" (6) at frame 31120 time 116816700
[17:11:35] mpeg2: "" (7) at frame 37609 time 141175534
[17:11:56] mpeg2: "" (8) at frame 42556 time 159744585
[17:12:08] mpeg2: "" (9) at frame 45578 time 171088417
[17:12:46] mpeg2: "" (10) at frame 54370 time 204091387
[17:13:19] mpeg2: "" (11) at frame 62642 time 235142407
[17:13:38] mpeg2: "" (12) at frame 67089 time 251836084
[17:13:51] mpeg2: "" (13) at frame 70403 time 264276012
[17:14:19] mpeg2: "" (14) at frame 76676 time 287822535
[17:14:42] mpeg2: "" (15) at frame 82340 time 309083775
[17:14:54] mpeg2: "" (16) at frame 85474 time 320848027
[17:15:23] mpeg2: "" (17) at frame 92027 time 345447102
[17:15:48] mpeg2: "" (18) at frame 98354 time 369196327
[17:16:02] mpeg2: "" (19) at frame 101824 time 382221840
[17:16:23] mpeg2: "" (20) at frame 107022 time 401734758
[17:16:46] mpeg2: "" (21) at frame 112314 time 421599603
[17:17:13] mpeg2: "" (22) at frame 118467 time 444697178
[17:17:27] mpeg2: "" (23) at frame 121971 time 457850318
[17:18:03] mpeg2: "" (24) at frame 130600 time 490237673
[17:18:23] mpeg2: "" (25) at frame 135311 time 507920838
[17:18:58] mpeg2: "" (26) at frame 143770 time 539674560
[17:19:10] mpeg2: "" (27) at frame 146833 time 551171546
[17:19:29] mpeg2: "" (28) at frame 151015 time 566869728
[17:19:42] mpeg2: "" (29) at frame 153915 time 577755603
[17:20:07] mpeg2: "" (30) at frame 159883 time 600157983
[17:20:27] mpeg2: "" (31) at frame 164311 time 616779588
[17:20:44] mpeg2: "" (32) at frame 168376 time 632039333
[17:21:04] mpeg2: "" (33) at frame 172937 time 649159436
[17:21:24] mpeg2: "" (34) at frame 177812 time 667459718
[17:21:59] mpeg2: "" (35) at frame 185725 time 697162391
[17:22:19] mpeg2: "" (36) at frame 190512 time 715132343
[17:22:37] mpeg2: "" (37) at frame 194720 time 730928123
[17:23:03] mpeg2: "" (38) at frame 201339 time 755773443
[17:23:29] mpeg2: "" (39) at frame 207780 time 779952098
[17:24:16] reader: done. 1 scr changes
[17:24:16] mpeg2: "" (40) at frame 218880 time 821618723
[17:24:16] sync: got 218892 frames, 218764 expected
[17:24:16] work: average encoding speed for job is 238.872528 fps
[17:24:16] mux: track 0, 218892 frames, 1264802104 bytes, 1108.31 kbps, fifo 32
[17:24:16] mux: track 1, 380402 frames, 365187840 bytes, 320.00 kbps, fifo 256
[17:24:16] mpeg2 done: 218893 frames
[17:24:16] render: lost time: 0 (0 frames)
[17:24:16] render: gained time: 0 (0 frames) (0 not accounted for)
[17:24:16] libhb: work result = 0

Rip done!
HandBrake has exited.

OGG audio downmix log:

Code: Select all

### CLI Query:  -i "E:\dvd\dvd" -t 1 --angle 1 -c 1-40 -o "C:\mkv\dvd_ogg.mkv" -f mkv -w 720 --loose-anamorphic  -e ffmpeg -q 4 -a 1 -E vorbis -6 stereo -R 48 -B 320 -D 0 -v 

2

### User Query: False

#########################################

[17:24:16] hb_init: checking cpu count
[17:24:16] hb_init: starting libhb thread
HandBrake 0.9.4 (2009112300) - MinGW i386 - http://handbrake.fr
2 CPUs detected
Opening E:\dvd\dvd...
[17:24:16] hb_scan: path=E:\dvd\dvd, title_index=1
[17:24:16] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
NAME OPEN FAILED
libdvdnav: Unable to find home directorylibdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
[17:24:16] scan: DVD has 1 title(s)
[17:24:16] scan: scanning title 1
[17:24:16] scan: opening IFO for VTS 1
[17:24:16] pgc_id: 1, pgn: 1: pgc: 0x1882780
[17:24:16] scan: vts=1, ttn=1, cells=0->40, blocks=0->3123813, 3123814 blocks
[17:24:16] scan: duration is 02:32:03 (9123320 ms)
[17:24:16] scan: checking audio 1
[17:24:16] scan: id=80bd, lang=English (AC3), 3cc=eng ext=0
[17:24:16] scan: title 1 has 40 chapters
[17:24:16] scan: chap 1 c=0->0, b=0->137999 (138000), 382742 ms
[17:24:16] scan: chap 2 c=1->1, b=138000->215839 (77840), 252401 ms
[17:24:16] scan: chap 3 c=2->2, b=215840->275986 (60147), 196445 ms
[17:24:16] scan: chap 4 c=3->3, b=275987->353661 (77675), 241560 ms
[17:24:16] scan: chap 5 c=4->4, b=353662->422742 (69081), 224577 ms
[17:24:16] scan: chap 6 c=5->5, b=422743->509563 (86821), 270540 ms
[17:24:16] scan: chap 7 c=6->6, b=509564->578190 (68627), 206428 ms
[17:24:16] scan: chap 8 c=7->7, b=578191->616345 (38155), 125519 ms
[17:24:16] scan: chap 9 c=8->8, b=616346->747577 (131232), 366593 ms
[17:24:16] scan: chap 10 c=9->9, b=747578->859391 (111814), 344859 ms
[17:24:16] scan: chap 11 c=10->10, b=859392->925028 (65637), 185528 ms
[17:24:16] scan: chap 12 c=11->11, b=925029->973714 (48686), 138386 ms
[17:24:16] scan: chap 13 c=12->12, b=973715->1073139 (99425), 261459 ms
[17:24:16] scan: chap 14 c=13->13, b=1073140->1152681 (79542), 236376 ms
[17:24:16] scan: chap 15 c=14->14, b=1152682->1195258 (42577), 130483 ms
[17:24:16] scan: chap 16 c=15->15, b=1195259->1293213 (97955), 273535 ms
[17:24:16] scan: chap 17 c=16->16, b=1293214->1372500 (79287), 263695 ms
[17:24:16] scan: chap 18 c=17->17, b=1372501->1416083 (43583), 144506 ms
[17:24:16] scan: chap 19 c=18->19, b=1416084->1490590 (74507), 215549 ms
[17:24:16] scan: chap 20 c=20->20, b=1490591->1563080 (72490), 220527 ms
[17:24:16] scan: chap 21 c=21->21, b=1563081->1649243 (86163), 256551 ms
[17:24:16] scan: chap 22 c=22->22, b=1649244->1695120 (45877), 146232 ms
[17:24:16] scan: chap 23 c=23->23, b=1695121->1811860 (116740), 359748 ms
[17:24:16] scan: chap 24 c=24->24, b=1811861->1880322 (68462), 196322 ms
[17:24:16] scan: chap 25 c=25->25, b=1880323->1997787 (117465), 352671 ms
[17:24:16] scan: chap 26 c=26->26, b=1997788->2037832 (40045), 127513 ms
[17:24:16] scan: chap 27 c=27->27, b=2037833->2102854 (65022), 174543 ms
[17:24:16] scan: chap 28 c=28->28, b=2102855->2150832 (47978), 120377 ms
[17:24:16] scan: chap 29 c=29->29, b=2150833->2237697 (86865), 248481 ms
[17:24:16] scan: chap 30 c=30->30, b=2237698->2312391 (74694), 184469 ms
[17:24:16] scan: chap 31 c=31->31, b=2312392->2374454 (62063), 169279 ms
[17:24:16] scan: chap 32 c=32->32, b=2374455->2444034 (69580), 190336 ms
[17:24:16] scan: chap 33 c=33->33, b=2444035->2521009 (76975), 203457 ms
[17:24:16] scan: chap 34 c=34->34, b=2521010->2644350 (123341), 329577 ms
[17:24:16] scan: chap 35 c=35->35, b=2644351->2714174 (69824), 199493 ms
[17:24:16] scan: chap 36 c=36->36, b=2714175->2775872 (61698), 175579 ms
[17:24:16] scan: chap 37 c=37->37, b=2775873->2857992 (82120), 275491 ms
[17:24:16] scan: chap 38 c=38->38, b=2857993->2944234 (86242), 268503 ms
[17:24:16] scan: chap 39 c=39->39, b=2944235->3123619 (179385), 462913 ms
[17:24:16] scan: chap 40 c=40->40, b=3123620->3123813 (194), 53 ms
[17:24:16] scan: aspect = 0
[17:24:16] scan: decoding previews for title 1
[17:24:16] scan: title angle(s) 1
[17:24:16] scan: audio 0x80bd: AC-3, rate=48000Hz, bitrate=384000 English (AC3) (5.1 ch)
[17:24:17] scan: 10 previews, 720x480, 23.976 fps, autocrop = 58/62/0/0, aspect 16:9, PAR 32:27
[17:24:17] scan: title (0) job->width:720, job->height:304
Scanning title 1...
[17:24:17] libhb: scan thread found 1 valid title(s)
+ title 1:
  + vts 1, ttn 1, cells 0->40 (3123814 blocks)
  + angle(s) 1
  + duration: 02:32:03
  + size: 720x480, pixel aspect: 32/27, display aspect: 1.78, 23.976 fps
  + autocrop: 58/62/0/0
  + chapters:
    + 1: cells 0->0, 138000 blocks, duration 00:06:23
    + 2: cells 1->1, 77840 blocks, duration 00:04:12
    + 3: cells 2->2, 60147 blocks, duration 00:03:16
    + 4: cells 3->3, 77675 blocks, duration 00:04:02
    + 5: cells 4->4, 69081 blocks, duration 00:03:45
    + 6: cells 5->5, 86821 blocks, duration 00:04:31
    + 7: cells 6->6, 68627 blocks, duration 00:03:26
    + 8: cells 7->7, 38155 blocks, duration 00:02:06
    + 9: cells 8->8, 131232 blocks, duration 00:06:07
    + 10: cells 9->9, 111814 blocks, duration 00:05:45
    + 11: cells 10->10, 65637 blocks, duration 00:03:06
    + 12: cells 11->11, 48686 blocks, duration 00:02:18
    + 13: cells 12->12, 99425 blocks, duration 00:04:21
    + 14: cells 13->13, 79542 blocks, duration 00:03:56
    + 15: cells 14->14, 42577 blocks, duration 00:02:10
    + 16: cells 15->15, 97955 blocks, duration 00:04:34
    + 17: cells 16->16, 79287 blocks, duration 00:04:24
    + 18: cells 17->17, 43583 blocks, duration 00:02:25
    + 19: cells 18->19, 74507 blocks, duration 00:03:36
    + 20: cells 20->20, 72490 blocks, duration 00:03:41
    + 21: cells 21->21, 86163 blocks, duration 00:04:17
    + 22: cells 22->22, 45877 blocks, duration 00:02:26
    + 23: cells 23->23, 116740 blocks, duration 00:06:00
    + 24: cells 24->24, 68462 blocks, duration 00:03:16
    + 25: cells 25->25, 117465 blocks, duration 00:05:53
    + 26: cells 26->26, 40045 blocks, duration 00:02:08
    + 27: cells 27->27, 65022 blocks, duration 00:02:55
    + 28: cells 28->28, 47978 blocks, duration 00:02:00
    + 29: cells 29->29, 86865 blocks, duration 00:04:08
    + 30: cells 30->30, 74694 blocks, duration 00:03:04
    + 31: cells 31->31, 62063 blocks, duration 00:02:49
    + 32: cells 32->32, 69580 blocks, duration 00:03:10
    + 33: cells 33->33, 76975 blocks, duration 00:03:23
    + 34: cells 34->34, 123341 blocks, duration 00:05:30
    + 35: cells 35->35, 69824 blocks, duration 00:03:19
    + 36: cells 36->36, 61698 blocks, duration 00:02:56
    + 37: cells 37->37, 82120 blocks, duration 00:04:35
    + 38: cells 38->38, 86242 blocks, duration 00:04:29
    + 39: cells 39->39, 179385 blocks, duration 00:07:43
    + 40: cells 40->40, 194 blocks, duration 00:00:00
  + audio tracks:
    + 1, English (AC3) (5.1 ch) (iso639-2: eng), 48000Hz, 384000bps
  + subtitle tracks:
    + 1, Closed Captions (iso639-2: eng) (Text)
[17:24:17] 1 job(s) to process
[17:24:17] starting job
[17:24:17] job configuration:
[17:24:17]  * source
[17:24:17]    + E:\dvd\dvd
[17:24:17]    + title 1, chapter(s) 1 to 40
[17:24:17]  * destination
[17:24:17]    + C:\mkv\dvd_ogg.mkv
[17:24:17]    + container: Matroska (.mkv)
[17:24:17]  * video track
[17:24:17]    + decoder: mpeg2
[17:24:17]      + bitrate 9000 kbps
[17:24:17]    + frame rate: same as source (around 23.976 fps)
[17:24:17]    + loose anamorphic
[17:24:17]      + modulus: 0
[17:24:17]      + storage dimensions: 720 * 480 -> 720 * 352, crop 58/62/0/0
[17:24:17]      + pixel aspect ratio: 139 / 120
[17:24:17]      + display dimensions: 834 * 352
[17:24:17]    + encoder: FFmpeg
[17:24:17]      + quality: 4.00 (QP)
[17:24:17]  * audio track 0
[17:24:17]    + decoder: English (AC3) (5.1 ch) (track 1, id 80bd)
[17:24:17]      + bitrate: 384 kbps, samplerate: 48000 Hz
[17:24:17]    + mixdown: Stereo
[17:24:17]    + encoder: vorbis
[17:24:17]      + bitrate: 320 kbps, samplerate: 48000 Hz
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
NAME OPEN FAILED
libdvdnav: Unable to find home directorylibdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
[17:24:17] encavcodec: encoding at constant quantizer 472
[17:24:17] encavcodec: encoding with stored aspect 139/120
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
No accelerated IMDCT transform found
[17:24:17] encvorbis: opening libvorbis
[17:24:17] reader: first SCR 146 id 224 DTS 6505
[17:24:17] mpeg2: "" (1) at frame 0 time 3003
[17:24:17] sync: expecting 218764 video frames
[17:24:17] sync: first pts is 3003
[17:24:17] 1.351333s: Film -> Video
[17:24:17] 1.451433s: Video -> Film
[17:25:40] mpeg2: "" (2) at frame 9171 time 34426392
[17:26:35] mpeg2: "" (3) at frame 15220 time 57132075
[17:27:16] mpeg2: "" (4) at frame 19929 time 74809234
[17:28:07] mpeg2: "" (5) at frame 25722 time 96553957
[17:28:54] mpeg2: "" (6) at frame 31120 time 116816700
[17:29:52] mpeg2: "" (7) at frame 37609 time 141175534
[17:30:35] mpeg2: "" (8) at frame 42556 time 159744585
[17:31:02] mpeg2: "" (9) at frame 45578 time 171088417
[17:32:20] mpeg2: "" (10) at frame 54370 time 204091387
[17:33:31] mpeg2: "" (11) at frame 62642 time 235142407
[17:34:10] mpeg2: "" (12) at frame 67089 time 251836084
[17:34:39] mpeg2: "" (13) at frame 70403 time 264276012
[17:35:34] mpeg2: "" (14) at frame 76676 time 287822535
[17:36:23] mpeg2: "" (15) at frame 82340 time 309083775
[17:36:51] mpeg2: "" (16) at frame 85474 time 320848027
[17:37:47] mpeg2: "" (17) at frame 92027 time 345447102
[17:38:42] mpeg2: "" (18) at frame 98354 time 369196327
[17:39:12] mpeg2: "" (19) at frame 101824 time 382221840
[17:39:58] mpeg2: "" (20) at frame 107022 time 401734758
[17:40:44] mpeg2: "" (21) at frame 112314 time 421599603
[17:41:38] mpeg2: "" (22) at frame 118467 time 444697178
[17:42:08] mpeg2: "" (23) at frame 121971 time 457850318
[17:43:20] mpeg2: "" (24) at frame 130600 time 490237673
[17:44:01] mpeg2: "" (25) at frame 135311 time 507920838
[17:45:13] mpeg2: "" (26) at frame 143770 time 539674560
[17:45:38] mpeg2: "" (27) at frame 146833 time 551171546
[17:46:16] mpeg2: "" (28) at frame 151015 time 566869728
[17:46:42] mpeg2: "" (29) at frame 153915 time 577755603
[17:47:34] mpeg2: "" (30) at frame 159883 time 600157983
[17:48:14] mpeg2: "" (31) at frame 164311 time 616779588
[17:48:49] mpeg2: "" (32) at frame 168376 time 632039333
[17:49:29] mpeg2: "" (33) at frame 172937 time 649159436
[17:50:11] mpeg2: "" (34) at frame 177812 time 667459718
[17:51:23] mpeg2: "" (35) at frame 185725 time 697162391
[17:52:06] mpeg2: "" (36) at frame 190512 time 715132343
[17:52:44] mpeg2: "" (37) at frame 194720 time 730928123
[17:53:41] mpeg2: "" (38) at frame 201339 time 755773443
[17:54:36] mpeg2: "" (39) at frame 207780 time 779952098
[17:56:11] mpeg2: "" (40) at frame 218880 time 821618723
[17:56:11] reader: done. 1 scr changes
[17:56:11] sync: got 218892 frames, 218764 expected
[17:56:11] work: average encoding speed for job is 114.360123 fps
[17:56:11] mux: track 0, 218892 frames, 1264802104 bytes, 1108.31 kbps, fifo 128
[17:56:11] mux: track 1, 1043918 frames, 397949351 bytes, 348.71 kbps, fifo 256
[17:56:11] mpeg2 done: 218893 frames
[17:56:11] render: lost time: 0 (0 frames)
[17:56:11] render: gained time: 0 (0 frames) (0 not accounted for)
[17:56:11] libhb: work result = 0

Rip done!
HandBrake has exited.

AAC audio downmix log:

Code: Select all

### CLI Query:  -i "E:\dvd\dvd" -t 1 --angle 1 -c 1-40 -o "C:\mkv\dvd_aac.mkv" -f mkv -w 720 --loose-anamorphic  -e ffmpeg -q 4 -a 1 -E faac -6 stereo -R 48 -B 160 -D 0 -v 2

### User Query: False

#########################################

[16:53:56] hb_init: checking cpu count
[16:53:56] hb_init: starting libhb thread
HandBrake 0.9.4 (2009112300) - MinGW i386 - http://handbrake.fr
2 CPUs detected
Opening E:\dvd\dvd...
[16:53:56] hb_scan: path=E:\dvd\dvd, title_index=1
[16:53:56] scan: trying to open with libdvdread
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
NAME OPEN FAILED
libdvdnav: Unable to find home directorylibdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
[16:53:56] scan: DVD has 1 title(s)
[16:53:56] scan: scanning title 1
[16:53:56] scan: opening IFO for VTS 1
[16:53:56] pgc_id: 1, pgn: 1: pgc: 0x1882770
[16:53:56] scan: vts=1, ttn=1, cells=0->40, blocks=0->3123813, 3123814 blocks
[16:53:56] scan: duration is 02:32:03 (9123320 ms)
[16:53:56] scan: checking audio 1
[16:53:56] scan: id=80bd, lang=English (AC3), 3cc=eng ext=0
[16:53:56] scan: title 1 has 40 chapters
[16:53:56] scan: chap 1 c=0->0, b=0->137999 (138000), 382742 ms
[16:53:56] scan: chap 2 c=1->1, b=138000->215839 (77840), 252401 ms
[16:53:56] scan: chap 3 c=2->2, b=215840->275986 (60147), 196445 ms
[16:53:56] scan: chap 4 c=3->3, b=275987->353661 (77675), 241560 ms
[16:53:56] scan: chap 5 c=4->4, b=353662->422742 (69081), 224577 ms
[16:53:56] scan: chap 6 c=5->5, b=422743->509563 (86821), 270540 ms
[16:53:56] scan: chap 7 c=6->6, b=509564->578190 (68627), 206428 ms
[16:53:56] scan: chap 8 c=7->7, b=578191->616345 (38155), 125519 ms
[16:53:56] scan: chap 9 c=8->8, b=616346->747577 (131232), 366593 ms
[16:53:56] scan: chap 10 c=9->9, b=747578->859391 (111814), 344859 ms
[16:53:56] scan: chap 11 c=10->10, b=859392->925028 (65637), 185528 ms
[16:53:56] scan: chap 12 c=11->11, b=925029->973714 (48686), 138386 ms
[16:53:56] scan: chap 13 c=12->12, b=973715->1073139 (99425), 261459 ms
[16:53:56] scan: chap 14 c=13->13, b=1073140->1152681 (79542), 236376 ms
[16:53:56] scan: chap 15 c=14->14, b=1152682->1195258 (42577), 130483 ms
[16:53:56] scan: chap 16 c=15->15, b=1195259->1293213 (97955), 273535 ms
[16:53:56] scan: chap 17 c=16->16, b=1293214->1372500 (79287), 263695 ms
[16:53:56] scan: chap 18 c=17->17, b=1372501->1416083 (43583), 144506 ms
[16:53:56] scan: chap 19 c=18->19, b=1416084->1490590 (74507), 215549 ms
[16:53:56] scan: chap 20 c=20->20, b=1490591->1563080 (72490), 220527 ms
[16:53:56] scan: chap 21 c=21->21, b=1563081->1649243 (86163), 256551 ms
[16:53:56] scan: chap 22 c=22->22, b=1649244->1695120 (45877), 146232 ms
[16:53:56] scan: chap 23 c=23->23, b=1695121->1811860 (116740), 359748 ms
[16:53:56] scan: chap 24 c=24->24, b=1811861->1880322 (68462), 196322 ms
[16:53:56] scan: chap 25 c=25->25, b=1880323->1997787 (117465), 352671 ms
[16:53:56] scan: chap 26 c=26->26, b=1997788->2037832 (40045), 127513 ms
[16:53:56] scan: chap 27 c=27->27, b=2037833->2102854 (65022), 174543 ms
[16:53:56] scan: chap 28 c=28->28, b=2102855->2150832 (47978), 120377 ms
[16:53:56] scan: chap 29 c=29->29, b=2150833->2237697 (86865), 248481 ms
[16:53:56] scan: chap 30 c=30->30, b=2237698->2312391 (74694), 184469 ms
[16:53:56] scan: chap 31 c=31->31, b=2312392->2374454 (62063), 169279 ms
[16:53:56] scan: chap 32 c=32->32, b=2374455->2444034 (69580), 190336 ms
[16:53:56] scan: chap 33 c=33->33, b=2444035->2521009 (76975), 203457 ms
[16:53:56] scan: chap 34 c=34->34, b=2521010->2644350 (123341), 329577 ms
[16:53:56] scan: chap 35 c=35->35, b=2644351->2714174 (69824), 199493 ms
[16:53:56] scan: chap 36 c=36->36, b=2714175->2775872 (61698), 175579 ms
[16:53:56] scan: chap 37 c=37->37, b=2775873->2857992 (82120), 275491 ms
[16:53:56] scan: chap 38 c=38->38, b=2857993->2944234 (86242), 268503 ms
[16:53:56] scan: chap 39 c=39->39, b=2944235->3123619 (179385), 462913 ms
[16:53:56] scan: chap 40 c=40->40, b=3123620->3123813 (194), 53 ms
[16:53:56] scan: aspect = 0
[16:53:56] scan: decoding previews for title 1
[16:53:56] scan: title angle(s) 1
[16:53:56] scan: audio 0x80bd: AC-3, rate=48000Hz, bitrate=384000 English (AC3) (5.1 ch)
[16:53:56] scan: 10 previews, 720x480, 23.976 fps, autocrop = 58/62/0/0, aspect 16:9, PAR 32:27
[16:53:56] scan: title (0) job->width:720, job->height:304
[16:53:56] libhb: scan thread found 1 valid title(s)
+ title 1:
  + vts 1, ttn 1, cells 0->40 (3123814 blocks)
  + angle(s) 1
  + duration: 02:32:03
  + size: 720x480, pixel aspect: 32/27, display aspect: 1.78, 23.976 fps
  + autocrop: 58/62/0/0
  + chapters:
    + 1: cells 0->0, 138000 blocks, duration 00:06:23
    + 2: cells 1->1, 77840 blocks, duration 00:04:12
    + 3: cells 2->2, 60147 blocks, duration 00:03:16
    + 4: cells 3->3, 77675 blocks, duration 00:04:02
    + 5: cells 4->4, 69081 blocks, duration 00:03:45
    + 6: cells 5->5, 86821 blocks, duration 00:04:31
    + 7: cells 6->6, 68627 blocks, duration 00:03:26
    + 8: cells 7->7, 38155 blocks, duration 00:02:06
    + 9: cells 8->8, 131232 blocks, duration 00:06:07
    + 10: cells 9->9, 111814 blocks, duration 00:05:45
    + 11: cells 10->10, 65637 blocks, duration 00:03:06
    + 12: cells 11->11, 48686 blocks, duration 00:02:18
    + 13: cells 12->12, 99425 blocks, duration 00:04:21
    + 14: cells 13->13, 79542 blocks, duration 00:03:56
    + 15: cells 14->14, 42577 blocks, duration 00:02:10
    + 16: cells 15->15, 97955 blocks, duration 00:04:34
    + 17: cells 16->16, 79287 blocks, duration 00:04:24
    + 18: cells 17->17, 43583 blocks, duration 00:02:25
    + 19: cells 18->19, 74507 blocks, duration 00:03:36
    + 20: cells 20->20, 72490 blocks, duration 00:03:41
    + 21: cells 21->21, 86163 blocks, duration 00:04:17
    + 22: cells 22->22, 45877 blocks, duration 00:02:26
    + 23: cells 23->23, 116740 blocks, duration 00:06:00
    + 24: cells 24->24, 68462 blocks, duration 00:03:16
    + 25: cells 25->25, 117465 blocks, duration 00:05:53
    + 26: cells 26->26, 40045 blocks, duration 00:02:08
    + 27: cells 27->27, 65022 blocks, duration 00:02:55
    + 28: cells 28->28, 47978 blocks, duration 00:02:00
    + 29: cells 29->29, 86865 blocks, duration 00:04:08
    + 30: cells 30->30, 74694 blocks, duration 00:03:04
    + 31: cells 31->31, 62063 blocks, duration 00:02:49
    + 32: cells 32->32, 69580 blocks, duration 00:03:10
    + 33: cells 33->33, 76975 blocks, duration 00:03:23
    + 34: cells 34->34, 123341 blocks, duration 00:05:30
    + 35: cells 35->35, 69824 blocks, duration 00:03:19
    + 36: cells 36->36, 61698 blocks, duration 00:02:56
    + 37: cells 37->37, 82120 blocks, duration 00:04:35
    + 38: cells 38->38, 86242 blocks, duration 00:04:29
    + 39: cells 39->39, 179385 blocks, duration 00:07:43
    + 40: cells 40->40, 194 blocks, duration 00:00:00
  + audio tracks:
    + 1, English (AC3) (5.1 ch) (iso639-2: eng), 48000Hz, 384000bps
  + subtitle tracks:
    + 1, Closed Captions (iso639-2: eng) (Text)
[16:53:56] 1 job(s) to process
[16:53:56] starting job
[16:53:56] job configuration:
[16:53:56]  * source
[16:53:56]    + E:\dvd\dvd
[16:53:56]    + title 1, chapter(s) 1 to 40
[16:53:56]  * destination
[16:53:56]    + C:\mkv\dvd_aac.mkv
[16:53:56]    + container: Matroska (.mkv)
[16:53:56]  * video track
[16:53:56]    + decoder: mpeg2
[16:53:56]      + bitrate 9000 kbps
[16:53:56]    + frame rate: same as source (around 23.976 fps)
[16:53:56]    + loose anamorphic
[16:53:56]      + modulus: 0
[16:53:56]      + storage dimensions: 720 * 480 -> 720 * 352, crop 58/62/0/0
[16:53:56]      + pixel aspect ratio: 139 / 120
[16:53:56]      + display dimensions: 834 * 352
[16:53:56]    + encoder: FFmpeg
[16:53:56]      + quality: 4.00 (QP)
[16:53:56]  * audio track 0
[16:53:56]    + decoder: English (AC3) (5.1 ch) (track 1, id 80bd)
[16:53:56]      + bitrate: 384 kbps, samplerate: 48000 Hz
[16:53:56]    + mixdown: Stereo
[16:53:56]    + encoder: faac
[16:53:56]      + bitrate: 160 kbps, samplerate: 48000 Hz
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
NAME OPEN FAILED
libdvdnav: Unable to find home directorylibdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 1 2 3 4 5 6 7 8
[16:53:56] encavcodec: encoding at constant quantizer 472
[16:53:56] encavcodec: encoding with stored aspect 139/120
libdvdread: Encrypted DVD support unavailable.
libdvdread: Device (null) inaccessible, CSS authentication not available.
No accelerated IMDCT transform found
[16:53:56] reader: first SCR 146 id 224 DTS 6505
[16:53:56] sync: expecting 218764 video frames
[16:53:56] mpeg2: "" (1) at frame 0 time 3003
[16:53:56] sync: first pts is 3003
[16:53:56] 1.351333s: Film -> Video
[16:53:56] 1.451433s: Video -> Film
[16:54:36] mpeg2: "" (2) at frame 9171 time 34426392
[16:55:01] mpeg2: "" (3) at frame 15220 time 57132075
[16:55:20] mpeg2: "" (4) at frame 19929 time 74809234
[16:55:43] mpeg2: "" (5) at frame 25722 time 96553957
[16:56:05] mpeg2: "" (6) at frame 31120 time 116816700
[16:56:31] mpeg2: "" (7) at frame 37609 time 141175534
[16:56:51] mpeg2: "" (8) at frame 42556 time 159744585
[16:57:04] mpeg2: "" (9) at frame 45578 time 171088417
[16:57:40] mpeg2: "" (10) at frame 54370 time 204091387
[16:58:13] mpeg2: "" (11) at frame 62642 time 235142407
[16:58:31] mpeg2: "" (12) at frame 67089 time 251836084
[16:58:45] mpeg2: "" (13) at frame 70403 time 264276012
[16:59:13] mpeg2: "" (14) at frame 76676 time 287822535
[16:59:36] mpeg2: "" (15) at frame 82340 time 309083775
[16:59:48] mpeg2: "" (16) at frame 85474 time 320848027
[17:00:16] mpeg2: "" (17) at frame 92027 time 345447102
[17:00:41] mpeg2: "" (18) at frame 98354 time 369196327
[17:00:55] mpeg2: "" (19) at frame 101824 time 382221840
[17:01:16] mpeg2: "" (20) at frame 107022 time 401734758
[17:01:38] mpeg2: "" (21) at frame 112314 time 421599603
[17:02:04] mpeg2: "" (22) at frame 118467 time 444697178
[17:02:18] mpeg2: "" (23) at frame 121971 time 457850318
[17:02:53] mpeg2: "" (24) at frame 130600 time 490237673
[17:03:13] mpeg2: "" (25) at frame 135311 time 507920838
[17:03:47] mpeg2: "" (26) at frame 143770 time 539674560
[17:03:59] mpeg2: "" (27) at frame 146833 time 551171546
[17:04:17] mpeg2: "" (28) at frame 151015 time 566869728
[17:04:30] mpeg2: "" (29) at frame 153915 time 577755603
[17:04:55] mpeg2: "" (30) at frame 159883 time 600157983
[17:05:14] mpeg2: "" (31) at frame 164311 time 616779588
[17:05:31] mpeg2: "" (32) at frame 168376 time 632039333
[17:05:50] mpeg2: "" (33) at frame 172937 time 649159436
[17:06:10] mpeg2: "" (34) at frame 177812 time 667459718
[17:06:44] mpeg2: "" (35) at frame 185725 time 697162391
[17:07:04] mpeg2: "" (36) at frame 190512 time 715132343
[17:07:21] mpeg2: "" (37) at frame 194720 time 730928123
[17:07:46] mpeg2: "" (38) at frame 201339 time 755773443
[17:08:12] mpeg2: "" (39) at frame 207780 time 779952098
[17:08:59] mpeg2: "" (40) at frame 218880 time 821618723
[17:08:59] reader: done. 1 scr changes
[17:08:59] sync: got 218892 frames, 218764 expected
[17:08:59] work: average encoding speed for job is 242.459503 fps
[17:08:59] mux: track 0, 218892 frames, 1264802104 bytes, 1108.30 kbps, fifo 32
[17:08:59] mux: track 1, 427952 frames, 182117235 bytes, 159.58 kbps, fifo 256
[17:08:59] mpeg2 done: 218893 frames
[17:08:59] render: lost time: 0 (0 frames)
[17:08:59] render: gained time: 0 (0 frames) (0 not accounted for)
[17:08:59] libhb: work result = 0

Rip done!
HandBrake has exited.

User avatar
Rodeo
HandBrake Team
Posts: 12737
Joined: Tue Mar 03, 2009 8:55 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by Rodeo »

I was able to work around the issue (on my test source) by setting the DRC to 1 instead of 0.

No idea what's causing the issue though.
randomreuben
Veteran User
Posts: 468
Joined: Mon Nov 02, 2009 2:18 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by randomreuben »

Hi Rodeo,

Thank you for looking into the problem. I will try out your workaround tonight.

Please check if I have understood this correctly. I looked up the explanation for DRC found at this post. http://forum.handbrake.fr/viewtopic.php ... 11&start=0 and it seems that the change in DRC from 0 to 1 makes the audio loudness/softness adjustment at the same level it would be if a DVD player were to interpret the track. Perhaps the trouble with setting DRC at 0 is that the audio loudness/softness adjustments aren't kicking in because anything to the power of 0 is 1. But if the DRC is set to 1, the compression factors "c" as described in the linked post are working correctly.

As you can tell, I might be a bit lost here. I would be very grateful for an explanation of DRC if I have it all wrong here.
jbrjake
Veteran User
Posts: 4805
Joined: Wed Dec 13, 2006 1:38 am

Re: AC3->MP3 results in distortion/crackling/popping

Post by jbrjake »

No that is not what is going on since of course that function isn't *used* when DRC is 0.
randomreuben
Veteran User
Posts: 468
Joined: Mon Nov 02, 2009 2:18 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by randomreuben »

Hi jbrjake,

Thank you for the clarification. jbrjake, it would be really cool if the MP3 LAME encoder were fixed for the Windows build of Handbrake. The FAAC encoder is often slammed around here as being poor in quality and Windows doesn't have an alternative AAC encoder. I tried looking for a codec vs. codec shootout of FAAC vs. other codecs, but I can't find one. Do you have a link that explains why people think this? I think the FAAC encoder is half decent for 2.0 encodes, but then again, I haven't heard what the CoreAudio encoder can do.

The MP3 LAME encoder is a very highly regarded encoder for audio, but it seems to be suffering this strange bug with the crackling sounds. I tried the DRC=1 workaround that Rodeo suggested and it worked for me. I did notice however that the explosions now seemed more muted in the MP3 2.0 encode compared to the FAAC 2.0 encode in VLC 1.0.5. Is that to be expected?

I very much appreciate all your hard work. Thank you for working on Handbrake.
mduell
Veteran User
Posts: 7404
Joined: Sat Apr 21, 2007 8:54 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by mduell »

randomreuben wrote:I tried the DRC=1 workaround that Rodeo suggested and it worked for me. I did notice however that the explosions now seemed more muted in the MP3 2.0 encode compared to the FAAC 2.0 encode in VLC 1.0.5. Is that to be expected?
Of course, you just reduced the dynamic range (the difference between loud and quiet).
randomreuben
Veteran User
Posts: 468
Joined: Mon Nov 02, 2009 2:18 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by randomreuben »

HMM... That explains why the DRC=1 isn't a fix, but a workaround. I hadn't used the DRC feature until today. Thank you for the explanation. I hope the developers can find why this strangeness with the MP3 LAME encoder is happening.
stryfewalker
Posts: 18
Joined: Thu Feb 18, 2010 4:26 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by stryfewalker »

I was looking into this problem further and wanted to mention in case others search for this problem, that the formal term for the distortion we are discussing in this thread is caused by the audio "clipping".

I loaded an extracted mp3 that exhibited the problem into the Audacity audio editor. Using the "Show Clipping" option I confirmed that the distortion we were hearing occurred whenever there were clipped samples. I extracted the original ac3 of the same audio that the extracted mp3 was derived from and used Foobar 1.0 to convert the file to a LAME mp3. I used the official Foobar ac3 component and the Foobar built in 5.1 to Stereo DSP The resulting mp3 audio file displayed the same clipped samples in Audacity BUT the distortion was not noticeable (no distinctive popping or crackling).

At this point I really believe that like randomreuben mentioned previously, the problem is the 5.1->2.0 Stereo processing.
User avatar
Rodeo
HandBrake Team
Posts: 12737
Joined: Tue Mar 03, 2009 8:55 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by Rodeo »

randomreuben
Veteran User
Posts: 468
Joined: Mon Nov 02, 2009 2:18 pm

Re: AC3->MP3 results in distortion/crackling/popping

Post by randomreuben »

Can't wait to try it! Thanks! :D
Post Reply