At Fri, 15 May 2009 14:46:10 -0400, Robert Krakora wrote:
I grabbed ALSA 1.0.20 and attempted to capture video from my Creative USB webcam and audio from my analog audio microphone. To my surprise there was audio being captured but only in bits and pieces, nothing audible. If I recorded the audio and played it back it sound like broken audio. I noticed this in the release notes:
[ALSA] pcm-midlevel: Add more strict buffer position checks based on jiffies
I assumed it had something to do with changes made in pcm_lib.c, so I replaced the ALSA 1.0.20 version of this file with the ALSA 1.0.19 version, rebuilt and I am now able to capture audio again from my analog microphone.
I filed Bug Report 0004523 describing this problem.
Does this happen with the latest snapshot version below? ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
Takashi