pmac 48kHz sample rate not function -> disable

Hi all,

48kHz sample rate is not functional - at least with all iBook2s I have access to. The hardware just does 44.1kHz instead. I have cross checking the Darwin source - but as far as I have seen it also does not support higher rates then 44.1kHz. Strange is, that any bit combination written does result in 44.1kHz. Maybe someone with access to the spec can implement it correctly - if the hardware does support something different.

Have fun,
René Rebe

@@ -53,7 +53,7 @@
 };
 /* fixed frequency table for tumbler */
 static int tumbler_freqs[2] = {
-	48000, 44100
+	/*48000,*/ 44100
 };
 
 /*

@@ -494,14 +494,14 @@
 	snd_pcm_runtime_t *runtime = subs->runtime;
 	int i, j, fflags;
 	static int typical_freqs[] = {
-		48000,
+		/*48000,*/
 		44100,
 		22050,
 		11025,
 		0,
 	};
 	static int typical_freq_flags[] = {
-		SNDRV_PCM_RATE_48000,
+		/*SNDRV_PCM_RATE_48000,*/
 		SNDRV_PCM_RATE_44100,
 		SNDRV_PCM_RATE_22050,
 		SNDRV_PCM_RATE_11025,

At Fri, 30 Jul 2004 16:56:44 +0200,

I guess it's iBook2-specific. Any other users?

Takashi

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AFAIK, none of the pmac chips supports anything other than 44.1kHz. In OS X CoreAudio takes care of resampling, I think...

Cheers,

Niklas
--
Computer Music PhD-student
University of Waikato
Hamilton
New Zealand

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At Wed, 4 Aug 2004 09:49:48 +1200,

Ok then let's remove it.

thanks,

Takashi

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