Re: [PATCH] - Audigy 1 and Audigy 2 mixer

[Takashi Iwai <tiwai@suse.de>]

At Fri, 10 Oct 2003 08:53:34 +0200,
p z oooo wrote:
> 
> [1  <text/plain; US-ASCII (quoted-printable)>]
> Hi,
> 
> These patches make some changes to mixer on Audigy 1 and Audigy 2.

thanks, i'll try and merge your patch in the next week when i get the
audigy board back.

> 
> Changes:
> - new FX bus allocated for Wave Stereo playback ("Wave Playback 
> Volume")
> - new "Master Playback Volume" control - controls output volume for 
> all channels (implemented using DSP code)
> - new controls "PCM Front Playback Volume", "PCM Surround Playback 
> Volume", "PCM Center Playback Volume", "PCM LFE Playback Volume" for 
> multi-channel (5.1) playback
> - new controls "Front Playback Volume", "Surround Playback 
> Volume", "Center Playback Volume", "LFE Playback Volume" - there are 
> just before master volume - controls mix from PCM (5.1) and Stereo 
> Mix (Stereo Wave, AC97, ...)
> - new controls "Stereo Mix Front Playback Volume", "Stereo Mix 
> Surround Playback Volume", "Stereo Mix Center Playback 
> Volume", "Stereo Mix LFE Playback Volume" - used do control volume of 
> mix from stereo sources (make mirroring to 5.1 for stereo)
> Audigy 1:
> - removed AC97 control "Master Volume Playback", "Master Mono Volume 
> Playback", "PCM Volume Playback", "PCM Out Path & Mute" - there are 
> unused
> - uses Philips 6 channel DAC for all channels, WARNING: all analog 
> sources are routed throught DSP (if you want listen line in you must 
> set "AC97 Playback Volume" and "(" set capture on "(" "Line in" 
> and "Capture" ")" or "(" capture on "Mix" and volume for "Line in" ")"
>   using Philis DAC has some advantage - Same volume levels for all 
> channels, I think better signal, ..)
>     - analog signals can by routed to all channles
>   disadvantage - all analog signals must be routed throught DSP - 
> (confusing selecting analog inputs and volumes for analogs inputs)
> 
> I tested 5.1 playback, wave stereo playback midi playback and analog 
> playback.
> I hope I don't break something (OSS mixer, AC3 playback, optical 
> input, output, coaxial input, output) - not tested.
> Names are not very well choosen (some needs rename).
> Maybe I can remove "Front Playback Volume", "Surround Playback 
> Volume", "Center Playback Volume", "LFE Playback Volume" and use only 
> controls for "PCM" and "Stereo Mix"

agreed.  "Stereo Mix xxx Playback" can be simply used as "xxx
Playback", then.

also, the "PCM" might be a bit confusing in this case, since the
normal playback is not affected by these controls.


anyway, thanks for your work!


Takashi


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