Video and Audio fall out of sync after about two minutes

[clockworkpc]

Binary package hint: guvcview

Ubuntu Lucid 10.04.1
guvcview 1.1.3-1build1

Video Details:
Device: UVC Camera (046d:0994)
Frame Rate: 1/25 fps
Resolution: 640x480
Camera Output: MJPG
Video File: capture.avi
Video Codec: MJPG - Compressed
Video Format: AVI - avi format

Audio Details:
Input Device: default
Sample Rate: Dev. default
Channels: Dev. default
Audio Format: PCM

Recorded for 3:27,
audio seemed in sync until 2:14,
clearly out of sync thereafter.

Expected:

To record for any given duration with audio and video in sync.

What happened instead:

Audio fell out of sync at 2:14.

[J. Cook (cookiecaper)]

I have the same problem. Using different codecs doesn't help. I have webcam with device id 046d:0990, a Quickcam Pro 9000. I am not using Ubuntu, but ArchLinux, so this is probably an upstream bug.

[J. Cook (cookiecaper)]

I should also note that audio is out of sync immediately for me and remains out-of-sync through the whole video. The audio seems to drift increasingly out of sync because no preset delay or FPS-fiddling seems to fix the thing entirely.

[/\\/_\\/\\/ (nicholas-wellcome)]

I have this problem as well with a Quickam Pro 9000, however I am using Ubuntu 11.04 and guvcvuew 1.4.4. I have hours of video with audio that drifts ahead or lags behind the video at different times.

[Shane Thomas (smthomas)]

I am also experiencing this problem using Ubuntu 11.04. The audio seems to be in sync at the beginning of the recording, but eventually falls out of sync. I am using the built in webcam on my Toshiba Satellite laptop as well as the built in microphone.

[Susan Barnum (megalibrarygirl)]

I have the same problem. Using Ubuntu 10.10 Maverick Meerkat. Audio will not sync no matter what settings used. I have a Microsoft Live Cam. Would love to see a solution!

[Mantas Kriaučiūnas (mantas)]

AFAIK this bug is fixed in latest guvcview 1.4.5 version, which is available in Ubuntu 11.10 (Oneiric) and is backported to Ubuntu 11.04 (Natty) at official Baltix GNU/Linux repository:
https://launchpad.net/~baltix-members/+archive/ppa/+packages?field.name_filter=guvcview

See guvcview Changelog:
guvcview (1.4.5)
 * store current codec properties in configuration file
 * fix audio codec properties button
 * modify some logitech extra controls (integer to menu)
-- Paulo Assis <email address hidden> Tue, 1 Mar 2011 23:09:00 +0000
guvcview (1.4.4)
 * add av_sync patch by Richard Fuchs <email address hidden>:
   Fixes sync issues between audio and video(most noticeable in avi container due to lack of timestamps)
 * Apply matroska-largefiles patch by Richard Fuchs <email address hidden>:
   Fix large files indexing in 32 bit systems
 * fix logitech disable video processing mode
-- Paulo Assis <email address hidden> Mon, 10 Jan 2011 15:05:00 +0000
guvcview (1.4.3)
 * Fix control enumeration for buggy cameras (endless loop on failed control query)
 * Add udev events support (new dependy libudev)
 * Add exit on close to image capture
 * Fix image capture autonaming when set from command line
-- Paulo Assis <email address hidden> Sun, 06 Nov 2010 11:00:00 +0000
guvcview (1.4.2)
 * Add support for Y16 pixel format (Greyscale)
 * Fix dynamic control support under kernels > 2.6.35
 * Check if resolution is supported by SDL_Surface
 * Check for null overlays
 * Use a sanner video ring buffer size (dependent on fps)
 * Add gdk-pixbuf-2.0 to pkg-config dependencies - fix build error on Maverick
-- Paulo Assis <email address hidden> Sat, 25 Sept 2010 14:45:00 +0000

[Paulo Assis (pj-assis)]

You can always get the latest packages (natty and oneiric)in the authors :D ppa.

stable: ppa:pj-assis/ppa
daily build (development): ppa:pj-assis/testing

latest 1.5.1