[MPlayer-dev-eng] ability to control liba52 gain/level and DRC

Felix Buenemann atmosfear at users.sourceforge.net
Fri Mar 22 23:14:10 CET 2002


Am Fre, 2002-03-22 um 23.08 schrieb Christian Lambert:
> 
> Hi,
> 
> This is a feature request to be able to control both the
> gain ajustment for ac3 decoding and be able to turn on/off
> the dynamic range compression.   I would see those two options
> as a command line option and of course they could be defined permanently
> in the config file.
> 
> The a52 has a "level" ajustment which right now is too low
> compared to what it should be.  Xine has this ajustment in the
> config file.  We don't want to set this value too high either because
> it will result in clipping but the default right now is really too low.
> Even with the sound turned all the way up, I have to turn the volume
> real high on the receiver. 
> 
> The dynamic range compression is hardcoded to 0 right now (off), but
> it might be a nice feature to be able to turn it on when listening to
> a movie late at night for example to bring most of the sound to the same
> level.   I prefer to leave 0 the default but just be able to turn on
> the option. 
> 
> Of course, also since we are dealing with liba52, the option of 
> enabling stereo or surround downmix for 2 channel speaker would be
> nice as well, but I think even with headphones that surround is fine.
> 
> Any comments?

Yes, send a patch!
> 
> Thanks!!!
> 

-- 
Best Regards,
	Atmos
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