[FFmpeg-user] Distorted audio in screencast

Carl Eugen Hoyos cehoyos at ag.or.at
Fri Apr 18 10:49:34 CEST 2014

Cecil Westerhof <Cecil <at> decebal.nl> writes:

> I use this because I want to integrate some graphics 
> in my video.

Did you test the overlay filter?

> > 2. Use "hw:1" instead of "plughw:1" to let ffmpeg 
> > do the signal adaptation.
> That gives:
>     [alsa  <at>  0x149caa0] cannot set channel count 
>     to 2 (Invalid argument) hw:1: Input/output error

Move "-ac 1" in front of "-i"

Carl Eugen

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