[MPlayer-users] Getting the best sound from mplayer

[Clément Bœsch]

On Mon, Jul 18, 2011 at 11:05:32AM +0400, Vladimir Mosgalin wrote:
[...]
> > I'm also curious about the downmix from 6-channel audio in a Blu-Ray
> > rip for my 2-channel USB DAC.  Does that take place in mplayer or
> > elsewhere?
> 
> In mplayer. This is probably where you lose most quality, anyway. If you
> are forced to listen to multichannel signal on stereo system, the
> default resampler might not be what you desire. Mplayer supports
> downmixing for headphones (use -channels 6 -af volume=-5,hrtf. If you
> hear cracking of sound at loud scenes, use bigger volume reduction, like
> volume=-10,hrtf) and you can emulate various multichannel-to-stereo
> conversion formulas, like
[...]

The downmix is automatically done by mplayer (a pan filter is added in
case the codec doesn't support the downmix). You can disable it with
-channels 6 for example.

-- 
Clément B.
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