UTVF007 Video Grabber: DC Audio Offset, new feature needed

Discuss encoding for devices and presets.
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
nik73lom
Posts: 5
Joined: Wed Apr 06, 2022 5:21 am

UTVF007 Video Grabber: DC Audio Offset, new feature needed

Post by nik73lom »

UTVF007 Video Grabber: DС Audio Offset, new feature needed
Hello I use a video grabber based on UTVF007 chip. It has 8bit ADC and gives quite good picture, but audio channel has a 50% DC offset. Your software has a dosen of videofilters but no one regarding audio.

The only way, how to remove DC offset is to use audio editor, alike Audition or Audacity
It this case you should excract audio channel, remove offset and then mux all togeter. It takes a bunch of time and software.
If it possible to add to your converter simple audiofilters: EQ, DC offset, Normalize etc?

HandBrake version 1.5.1 (2022011000)

Operating system and version Windows 10 20H02

Tere is no errors, so I didn't attach a HandBrake Activity Log
nik73lom
Posts: 5
Joined: Wed Apr 06, 2022 5:21 am

Re: UTVF007 Video Grabber: DC Audio Offset, new feature needed

Post by nik73lom »

Here are logs.picture and videofile with 50% DC offset, before and after conversion
https://disk.yandex.ru/d/y_C0JlhSgkLhpg
nik73lom
Posts: 5
Joined: Wed Apr 06, 2022 5:21 am

Re: UTVF007 Video Grabber: DC Audio Offset, new feature needed

Post by nik73lom »

Code: Select all

HandBrake 1.5.1 (2022011000)
OS: Microsoft Windows NT 10.0.19044.0
CPU: Intel(R) Xeon(R) CPU E5-2678 v3 @ 2.50GHz
Ram: 16223 MB, 
GPU Information:
  NVIDIA GeForce GTX 1060 3GB - 30.0.15.1215
Screen: 1920x1080
Temp Dir: C:\Temp\
Install Dir: C:\Program Files\HandBrake\
Data Dir: C:\Users\Nemo\AppData\Roaming\HandBrake

-------------------------------------------
[08:27:03] hb_init: starting libhb thread

 # Starting Scan ...

[08:27:03] CPU: Intel(R) Xeon(R) CPU E5-2678 v3 @ 2.50GHz
[08:27:03]  - Intel microarchitecture Haswell
[08:27:03]  - logical processor count: 24
[08:27:03] Intel Quick Sync Video support: no
[08:27:03] hb_scan: path=D:\!Capture!\! Kodak\Untitled 37.avi, title_index=0
udfread ERROR: ECMA 167 Volume Recognition failed
src/libbluray/disc/disc.c:333: failed opening UDF image D:\!Capture!\! Kodak\Untitled 37.avi
src/libbluray/disc/disc.c:437: error opening file BDMV\index.bdmv
src/libbluray/disc/disc.c:437: error opening file BDMV\BACKUP\index.bdmv
src/libbluray/bluray.c:2646: nav_get_title_list(D:\!Capture!\! Kodak\Untitled 37.avi\) failed
[08:27:03] bd: not a bd - trying as a stream/file instead
libdvdread: DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnav: vm: vm: failed to read VIDEO_TS.IFO
[08:27:03] dvd: not a dvd - trying as a stream/file instead
Input #0, avi, from 'D:\!Capture!\! Kodak\Untitled 37.avi':
  Duration: 00:00:21.00, start: 0.000000, bitrate: 23451 kb/s
  Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 24175 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
  Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels, s16, 768 kb/s
[08:27:03] scan: decoding previews for title 1
[08:27:03] scan: audio 0x1: pcm_s16le, rate=48000Hz, bitrate=768000 Unknown (pcm_s16le) (1.0 ch) (768 kbps)
[08:27:03] scan: 10 previews, 720x576, 25.000 fps, autocrop = 2/2/0/0, aspect 4:3, PAR 16:15, color profile: 5-1-6, chroma location: topleft
[08:27:03] libhb: scan thread found 1 valid title(s)

 # Scan Finished ...

Post Reply