[LAU] RME HDSP 9632 - amixer control

[Klaus Schulz]

Hi Paul.

OK - got it.  I mean at least from a user perspective, by looking at
HDSPmixer, the HW-outputs seemed like single controls.
What's confusing on the first glance is that these cover a different gain
range and can be contolled independenly form the input
controls.  I considered the outputs the vertical and the inputs the
horizantal layer of the matrix. Anyhow. Never mind.

Perhaps you could explain why in HDSPmixer the input group controls have a
range of -inf to +6db and the HW-outputs -inf to 0db.

THX
Klaus


On Sun, Oct 25, 2009 at 2:29 AM, Paul Davis <paul at linuxaudiosystems.com>wrote:

> On Sat, Oct 24, 2009 at 10:46 AM, Klaus Schulz <kls.schlz at googlemail.com>
> wrote:
>
> > The pity is really that I can not control the attenuation on the
> hw-outputs
> > with amixer. I'll do that on the application side.
>
> there is no such control in the hardware. the matrix mixer only
> provides gain control for the signal level of a particular source to a
> particular output. the idea of "turning down channel 13" doesn't exist
> as an individual idea in this h/ w design - you have to turn down
> everything that feeds channel 13 instead.
>
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