openmoko at mazikeen.demon.co.uk
Tue Jul 15 21:22:14 CEST 2008
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.
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
headset earphones and speaker are on 'Headphone'
Handset earpiece is on 'Speaker'
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