cs46xx (Turtle Beach Santa Cruz), kernel 2.6 recording silence

cs46xx (Turtle Beach Santa Cruz), kernel 2.6 recording silence

[Joachim Feise]

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System:
Slackware 9.0, upgraded to kernel 2.6.2, using devfs.

I wanted to replace my aging sbawe (which works fine with Alsa)
with a Turtle Beach Santa Cruz card.
I can play sound, but recording from Line-In does not work.
I just get silence.
The recording sw (RealProducer 8.5) uses the OSS emulation.
It finds /dev/dsp just fine, but there just seems to be no
data delivered on the device (btw, with devfs, /dev/dsp
is a symlink to /dev/sound/dsp.)

I tried using the latest drivers (1.0.2c), and the cvs version,
but no change.

There are no error logs.

Does anybody have an idea what's going on?

TIA,
- -Joe



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Re: cs46xx (Turtle Beach Santa Cruz), kernel 2.6 recording silence

[Bill Unruh]

On Sat, 14 Feb 2004, Joachim Feise wrote:

> I wanted to replace my aging sbawe (which works fine with Alsa)
> with a Turtle Beach Santa Cruz card.
> I can play sound, but recording from Line-In does not work.
> I just get silence.
> The recording sw (RealProducer 8.5) uses the OSS emulation.
> It finds /dev/dsp just fine, but there just seems to be no
> data delivered on the device (btw, with devfs, /dev/dsp
> is a symlink to /dev/sound/dsp.)

a) Line in is muted
b) Line in has its amplitude all the way down.

Often it is the igain slider, not the line-in slider which controls what
the amplitude of the recorded sound is. On many(?) mixers, the line-in
slider just determines how much of the input gets delivered to the
output.

> 
> I tried using the latest drivers (1.0.2c), and the cvs version,
> but no change.
> 


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Re: [Alsa-user] cs46xx (Turtle Beach Santa Cruz), kernel 2.6 recording silence

[Joachim Feise]

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[moderators: sorry for repost, I need to remember to set my email
to the one I registered with]
Bill Unruh said  on 2/14/2004 11:08:

> On Sat, 14 Feb 2004, Joachim Feise wrote:
>
>
>>I wanted to replace my aging sbawe (which works fine with Alsa)
>>with a Turtle Beach Santa Cruz card.
>>I can play sound, but recording from Line-In does not work.
>>I just get silence.
>>The recording sw (RealProducer 8.5) uses the OSS emulation.
>>It finds /dev/dsp just fine, but there just seems to be no
>>data delivered on the device (btw, with devfs, /dev/dsp
>>is a symlink to /dev/sound/dsp.)
>
>
> a) Line in is muted
> b) Line in has its amplitude all the way down.

Nope. Checked all that.
Using alsamixer, I unmuted line in, and set the amplitude to 100%.

- -Joe
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Re: cs46xx (Turtle Beach Santa Cruz), kernel 2.6 recording silence

[Bill Unruh]

> > a) Line in is muted
> > b) Line in has its amplitude all the way down.
> 
> Nope. Checked all that.
> Using alsamixer, I unmuted line in, and set the amplitude to 100%.
> 
On many cards the input amplitude is IGain, not linein. linein just
determines how much of the input goes to the output.



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Re: cs46xx (Turtle Beach Santa Cruz), kernel 2.6 recording silence

[Joachim Feise]

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Bill Unruh said  on 2/14/2004 12:44:

>>>a) Line in is muted
>>>b) Line in has its amplitude all the way down.
>>
>>Nope. Checked all that.
>>Using alsamixer, I unmuted line in, and set the amplitude to 100%.
>>
>
> On many cards the input amplitude is IGain, not linein. linein just
> determines how much of the input goes to the output.

Well, alsamixer does not show any IGain column for this card.
I have tried unmuting and upping the amplitude on everything.
Audio into Line-in or Mic in goes fine to the output.
Recording still doesn't work.
I am not sure if I'm missing an option somewhere, or if this
is a deeper problem.

- -Joe
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