[MPlayer-users] Increase sound volume with mencoder / lavc audio

D Richard Felker III dalias at aerifal.cx
Mon May 10 21:45:03 CEST 2004


On Mon, May 10, 2004 at 09:32:08PM +0200, Alexandre Aractingi wrote:
> Le lun 10/05/2004 à 19:48, D Richard Felker III a écrit :
> > Add -mc 0 and it will be in sync.
> 
> Thanks for the suggestion. May I ask why does the sync problem only
> appear with lame (lavc ac3 works a treat)?

Without -mc 0, mencoder tries to sync a/v using the timestamps from
the source video. But these are messed up by the fact that lame needs
to buffer quite a bit of audio ahead for its vbr algorithms, and
mencoder doesn't correctly compensate.

Rich




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