On Yaum al-Arbi'a 10 Shawwal 1430 9:36:10 am Takashi Iwai wrote:
> At Wed, 30 Sep 2009 08:18:31 +0300,
> 
 
> Hm, are you using pulseaudio?  Just to be sure, try like below:
> 	% arecord -Dplughw -fdat -vv foo.wav

Yes, pulseaudio is running according to ps -e output. I ran arecord command as 
you said and no difference.

> Also, does the patch below have any influence?

I applied that patch (commented the line) but no influence.

> Basically the signal path from the built-in mic is very simple, so
> there is no much room to change...

I really don't know but it's a very bad SNR in Linux. Now, could it be that in 
Vista they are implementing a Noise cancellation somehow?
Another try: could it be an IRQ issue since I noticed before the alsa update 
the irq is different
-                      HDA Intel at 0xda100000 irq 22
+                      HDA Intel at 0xda100000 irq 33
-                      HDA ATI HDMI at 0xda010000 irq 17
+                      HDA ATI HDMI at 0xda010000 irq 34

Now, for some obscure reason I got confused in my previous messages when I 
told you the external mic is working after the update. It seems it's always 
the internal mic that's recording and when I plug the external mic, it makes 
no difference. Attached is the current alsa report.

> ---
> diff --git a/sound/pci/hda/patch_sigmatel.c
>  b/sound/pci/hda/patch_sigmatel.c index 826137e..3c5f495 100644d
> --- a/sound/pci/hda/patch_sigmatel.c
> +++ b/sound/pci/hda/patch_sigmatel.c
> @@ -5338,7 +5338,7 @@ again:
>  	spec->aloopback_mask = 0x50;
>  	spec->aloopback_shift = 0;
> 
> -	spec->powerdown_adcs = 1;
> +	/*spec->powerdown_adcs = 1;*/
>  	spec->digbeep_nid = 0x26;
>  	spec->mux_nids = stac92hd71bxx_mux_nids;
>  	spec->adc_nids = stac92hd71bxx_adc_nids;
 


-- 
Munzir Taha
Telecommunications and Electronics Engineer
Master CIW Designer, ICDL, MOUS, Linux+, LPI, SCSA
Riyadh, SA