Re: Audigy SPDIF Output Sample Rate

[Lee Revell <rlrevell@joe-job.com>]

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On Fri, 2005-02-25 at 23:55 +0100, The Orqwith Vagrant wrote:
> On Fri, 2005-02-25 at 17:39 -0500, Lee Revell wrote:
> > On Fri, 2005-02-25 at 16:58 -0500, Lee Revell wrote:
> > > On Fri, 2005-02-25 at 22:44 +0100, The Orqwith Vagrant wrote:
> > > > As someone who does have a 96 Khz capable reciever, I thought I might
> > > > add my own comments tho this. The 96khz setting works perfect, sounds
> > > > perfect with this patch; however, 48 & 44.1 are reversed now. Trying to
> > > > play 48khz samples when the setting is 44.1 causes ugly scratchy
> > > > distortion, but oddly, only on the right channel. Using the spdif raw
> > > > PCM device, which reverses left and right channels of a stereo file,
> > > > still has the distortion on the right channel.
> > > 
> > > OK I'll post a new patch.
> > > 
> > 
> > Please try the attached patch (revert the last patch first).
> > 
> > Lee
> > 
> 
> Done. Sample rates are correct with this patch. The distortion when
> playing 48khz samples with 44.1khz spdif rate is also gone.
> 

OK, great!  That means that both the OSS and the ALSA driver had it
wrong.

ALSA maintainers, please apply this patch to CVS.  Here it is again for
convenience.

Summary: Fix the Audigy SPDIF sample rate register definitions

Signed-Off-By: Lee Revell <rlrevell@joe-job.com>
 


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Index: alsa-postv12/alsa-kernel/include/emu10k1.h
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/include/emu10k1.h,v
retrieving revision 1.57
diff -u -r1.57 emu10k1.h
--- alsa-postv12/alsa-kernel/include/emu10k1.h	17 Feb 2005 14:48:07 -0000	1.57
+++ alsa-postv12/alsa-kernel/include/emu10k1.h	25 Feb 2005 22:38:24 -0000
@@ -765,8 +765,8 @@
 #define A_SPDIF_SAMPLERATE	0x76		/* Set the sample rate of SPDIF output		*/
 #define A_SPDIF_RATE_MASK	0x000000c0
 #define A_SPDIF_48000		0x00000000
-#define A_SPDIF_44100		0x00000040
-#define A_SPDIF_96000		0x00000080
+#define A_SPDIF_44100		0x00000080
+#define A_SPDIF_96000		0x00000040
 
 /* 0x77,0x78,0x79 "something i2s-related" - default to 0x01080000 on my audigy 2 ZS --rlrevell	*/
 /* 0x7a, 0x7b - lookup tables */