[FFmpeg-user] How to properly record sound when capturing web cam?

Erik Dobberkau erik.dobberkau at gmail.com
Tue May 1 20:23:09 EEST 2018

> I have tried this one:
> ffmpeg -y -f v4l2 -thread_queue_size 800 -video_size 800x448 -i
> /dev/video0 -f alsa -thread_queue_size 10000 -ac 1 -ar 14400 -i default
> -q:v 5  output.webm; mplayer output.webm; ls -l output.webm
This might not have the least to do with all of this, I just want to poiunt
out that an audio sample rate of  14400 Hz (where I guess 44100 is
intended) might contribute to trouble downstream...

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