Volume?

Joerg Reisenweber joerg at openmoko.org
Tue Jul 15 22:32:58 CEST 2008


Am Di  15. Juli 2008 schrieb Al Johnson:
> On Tuesday 15 July 2008, Emilis Dambauskas wrote:
> > On Tue, Jul 15, 2008 at 6:40 PM, Edward A. Falk <falk at efalk.org> wrote:
> > > For now, the only ones you care about are the "Headphone" and "PCM"
> > > volumes.  Respectively, these are the master volume and the volume of
> > > the software-generated sounds.
> >
> > What about hands-free earphones and mic?
> 
> Look at the .state files in /usr/share/openmoko/scenarios/ with nice 
> descriptive names. You can use diff to see what changes between the 
different 
> states, and you will want to edit these to make the changes persistent. I'm 
> still working this out using these and the audio path diagrams on the wiki.
> 	http://wiki.openmoko.org/wiki/Neo1973_Audio_Subsystem
> The mics in particular have several adjustments in the audio path. I _think_ 
> it's something like this:
> 
> Both handset (mic1) and headset (mic2) mics are switched by 'Mic Sidetone 
Mux' 
> into the channel that passes though 'Mono Sidetone' and 'Mono' volume 
> controls.
> 
> headset earphones and speaker are on 'Headphone'
> 
> Handset earpiece is on 'Speaker'

AFAICR, that sounds quite accurate.
/j
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