Sound quality in calls.

Tom Yates madhatter at
Wed Sep 17 08:09:16 CEST 2008

On Tue, 16 Sep 2008, Daniel Hedblom wrote:

> If anyone has a good /usr/share/openmoko/scenarios/gsmhanset.state
> where sound incalls is good i really would love to have it. Ive been
> fiddling with it in every way possible, tried all the distributions
> there is (debian, FSO mk II and III, OM2008.x and qtopia ) and almost
> sacrificed a small mammal just to be sure.
> I just want to make sure the hardware on my phone isnt broken since
> everyone i talk to mentions appalingly bad sound when i talk to them.
> Not just echo but the volume they hear when i talk to them on the FR
> is very low.

you can find mine at . 
i basically sacrificed speaker volume for mic gain; other people can hear 
me much better, but i can only hear them if there's not too much 
background noise.

i experimented yesterday with turning on the hardware echo cancellation, 
and that worked for one call (allowed me to increase Speaker Playback 
Volume to 117) but then things went back to being very echoey.  so unless 
i'm willing to have a minicom session at the beginning of every call, 
that's not usable right now; i'll have to wait until the AT%N0187 is 
integrated into qtopia's call-handling logic.

i have tried florian hackenberger's patched 
qtopia-phone-x11-phonevendor-ficgta01vendor (see ; thanks, florian!) but it 
doesn't apply cleanly against the latest 2008.08 (version too old), and 
when i used -force-downgrade my qpe's CPU usage went to 100% for 40 
minutes, while the phone failed to register with the network.  so i backed 
it out :( .

hope some of that helps.


       Tom Yates  -

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