Re: CMI8738-MC6 surround40 plugin on 4 SP systems]

[Takashi Iwai <tiwai@suse.de>]

At Thu, 30 Oct 2003 12:42:39 -0500,
Marcel wrote:
> 
> 
> I've been trying to finetune my cmipci for several weeks now.   And this is
> the best way I've been able to get transparent operation with various audio
> material: stereo, mono, 4.0, 5.1.  The main problem being no surround sound
> iif "Exchange DAC" setting was not set, and sound on the rear speakers only
> if it was.

ah, this might be true.
does it happen both on 4.0 and 5.1 outputs?
i don't remember that it's necessary for 5.1 at the last time i
tested.

> I think the following patch should be considered.  It puts the surround
> sound on the rear speakers, where it should be when using the plugin
> surround40, and on front speakers in normal stereo/mono mode.  I've been
> testing it for several days now and it seems better than the original
> CMI8738-MC6.pcm.

looks fine.  i'll add it.

perhaps we should simply remove this control from user and handle
internally for the MC6 chip.


thanks,

Takashi


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