[FFmpeg-user] 5% of audio samples missing when capturing audio on a mac

Carl Eugen Hoyos ceffmpeg at gmail.com
Sat Sep 12 16:46:31 EEST 2020

Am Sa., 12. Sept. 2020 um 10:48 Uhr schrieb Norbert Pozar
<bertapozar at gmail.com>:

> I am attempting to capture a webcam with audio on a MacBook pro (Catalina
> 10.15.6), but I am having trouble with the audio stream. The video part is
> fine, but audio seems to be missing about 5% of the expected samples. This
> simple command illustrates the problem:
> ffmpeg -v 9 -loglevel 99 -y -f avfoundation -i ":0" -t 10 out.wav

This is missing the console output of:
ffmpeg -i out.wav -f null -

Carl Eugen

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