FSO M4 - nice GSM sound

Michael 'Mickey' Lauer mickey at openmoko.org
Wed Nov 12 00:03:12 CET 2008

Am Tuesday 11 November 2008 20:51:05 schrieb Joachim Breitner:
> Hi,
> Am Dienstag, den 11.11.2008, 19:54 +0100 schrieb Peter Mogensen:
> > I just wanted to congratulate the FSO team for their new images.
> > For the first time I have perfect sound over GSM. No echo, no buzz.
> same here, buzz and echo seem to be gone. Although I think the other
> side’s volume is a bit low here, and vica versa – what do you think?

Glad to hear. Apparantly there is some subtle variants with regards to the 
analogue components, so a state file that works for A may be slightly too 
loud or too quiet for B. We need to expose the main volume in a simple way 

FYI, the new cleanlyness (as far as the hardware allows *cough*) is due to an 
improved statefile (thanks FDOM folks) and some tweaking via the 
(undocumented *sigh*) modem echo and noise suppression commands.

Using -12db for echo and noise supression sounded too harsh for most people, 
so I went back to -6db.


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