M-Audio Audiophile 24/96 (snd-ice1712) lacks ADCs

M-Audio Audiophile 24/96 (snd-ice1712) lacks ADCs

[Pils Bert]

Hi guys,

I have a problem with my M-Audio Audiophile 24/96 soundcard: There are no ADC volume sliders present neither in alsamixer nor in envy24control. But instead there are also DAC sliders on the capture page in alsamixer?! But changing them doesn't have an effect on the H/W input gain.

I read on website that some other users had the same problem (but it seams to be a rare problem).

First of all my card has been correctly detected as Audiophile 24/96. But in /sys/module/snd_ice1712/parameters/model are only null values. I loaded the module with the model=audiophile parameter, but no ADCs appear. Second I skimmed over the module source code and found the lines

	case ICE1712_SUBDEVICE_AUDIOPHILE:
		ice->num_total_dacs = 2;
		ice->num_total_adcs = 2;
		break;

in __devinit snd_ice1712_delta_init(struct snd_ice1712 *ice) in delta.c
So the module says there have to be 2 ADCs...

I also disabled my onboard soundcard (HDA Intel), but no ADCs appear.

Maybe its some hardware configuration problem?

Moreover, I had to edit my .asoundrc file in order to play and capture audio anyway (so no 'out of the box' experience here...):

pcm.audiophile {
   type hw
   card 1
   device 0
}

pcm.analog {
   type plug
   slave.pcm audiophile
   ttable.0.0 1 # H/W 1
   ttable.1.1 1 # H/W 2
}

I'm using plain ALSA 1.0.25 (without pulseaudio) on Debian Testing (Linux Rowdy 3.2.0-4-amd64 #1 SMP Debian 3.2.32-1 x86_64 GNU/Linux)

Maybe some of you guys have an good idea ;)

Best regards,

Jannik

Re: M-Audio Audiophile 24/96 (snd-ice1712) lacks ADCs

[Clemens Ladisch]

Pils Bert wrote:
> I have a problem with my M-Audio Audiophile 24/96 soundcard: There are
> no ADC volume sliders present

The AK4528 ADCs indeed have no adjustable volume:
http://www.asahi-kasei.co.jp/akm/en/product/ak4528/ak4528.html


Regards,
Clemens

Re: M-Audio Audiophile 24/96 (snd-ice1712) lacks ADCs

[Jannik St]

Hi Clements,

thanks for your reply.

Clemens wrote:
> The AK4528 ADCs indeed have no adjustable volume:
> http://www.asahi-kasei.co.jp/akm/en/product/ak4528/ak4528.html

Nevertheless I'm confused why other people reported similar problems where their ADC sliders were present and at some point (newer ALSA version) disappeared. 

http://pl.digipedia.org/usenet/thread/17997/26661/

I wonder if older ALSA version shows the ADC sliders by accident and it was corrected in later ALSA versions or if newer ALSA version have a bug... But I read in the post above that ADC adjustment works for some time with his 2496.

Or exists some Audiophile cards were ADC adjustment is possible and some were not (different board revisions)?

Best regards,

Jannik

Re: M-Audio Audiophile 24/96 (snd-ice1712) lacks ADCs

[Takashi Iwai]

At Thu, 06 Dec 2012 16:48:22 +0100,
Jannik St wrote:
> 
> Hi Clements,
> 
> thanks for your reply.
> 
> Clemens wrote:
> > The AK4528 ADCs indeed have no adjustable volume:
> > http://www.asahi-kasei.co.jp/akm/en/product/ak4528/ak4528.html
> 
> Nevertheless I'm confused why other people reported similar problems where their ADC sliders were present and at some point (newer ALSA version) disappeared. 
> 
> http://pl.digipedia.org/usenet/thread/17997/26661/

It's actually a fix of bogus controls.  As Clemens mentioned, AK4528
has no ADC volume control in the hardware level.  But the earlier
driver provided the register access even though they didn't do
anything correct.

> I wonder if older ALSA version shows the ADC sliders by accident and it was corrected in later ALSA versions or if newer ALSA version have a bug... But I read in the post above that ADC adjustment works for some time with his 2496.

It must be a placebo.

> Or exists some Audiophile cards were ADC adjustment is possible and some were not (different board revisions)?

That's also possible :)


Takashi