[FFmpeg-user] Desktop capturing with acodec pcm_s16le results in wobbly audio

Carl Eugen Hoyos cehoyos at ag.or.at
Sun Sep 6 17:08:48 CEST 2015

Oliver <olivermd <at> gmx.net> writes:

> ffmpeg -f alsa -ac 2 -i default -f x11grab -r 30 
> -s 1920x1200 -i :0.0+1680,0 -acodec pcm_s16le 
> -vcodec libx264 -preset ultrafast -crf 0
> -threads 0 testout.mkv
> this kind of worked but the audio in the resulting 
> video file had a distinct wobble effect

Did you test the following?
$ ffmpeg -f alsa -ac 2 -i default -acodec copy out.wav

> The output of the above command was:

For future questions:
Please do not cut the console output, particularly not 
the first (and the last) 50 lines.

Carl Eugen

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