[FFmpeg-user] aevalsrc stereo auto-converted to mono?

Nicolas George nicolas.george at normalesup.org
Wed Feb 8 00:06:02 CET 2012

Le nonidi 19 pluviôse, an CCXX, Thierry Foucu a écrit :
> I was trying to use aevalsrc to create a stereo input, but it seems that
> the code auto insert a aconvert filter to downmix my stereo input to mono.
> Here is the output. Notice the aconvert filter being inserted and
> converting my stereo to mono...
> any option I should add to make sure the downmix does not happen?


"3.15 Using '-f lavfi', audio becomes mono for no apparent reason."

Please let us know if this is not enough to solve your problem.


  Nicolas George
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