Re: Please add snd-ice1712 problem to "Known bugs" page

[James Courtier-Dutton <James@superbug.demon.co.uk>]

Sam wrote:
> On Wed, 2003-09-10 at 05:06, Paul Davis wrote:
> 
>>although it makes me happy to see you feeling this way, i felt
>>compelled to add that i'm not necessarily sure that the linux way *is*
>>better. its more flexible, that's true. but the two different
>>standards for "input maximum signal level" are just that - standards -
>>and the fader to control this makes it much harder to switch between
>>the two levels that all of my equipment uses.
> 
> 
> This is a good point.  Maybe my sound problem is only my poor skill at
> setting the output signal level appropriately.
> 
> Chances are M-Audio put some thought into the +4dBu,
> Consumer, and -10dbV presets.  Does anyone know how we could map these
> to the corresponding 7 bit values?  I could probably patch envy24control
> to add analog signal presets so we could have the best of both features.
> 
> Sam
> 
I think this highlights a particular problem with the current alsa mixer.
It might have a value from 0 to 100%. Percent of what?
I think that this should all be changed to signed values, with a max and 
a min setting. With a value of 0 being equivalent to no-gain, 
no-attenuation. Each alsa-driver would then convert this signed value 
into a value actually written to the hardware register via a lookup table.

Cheers
James




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