Buzzing on GSM audio

Dave Clark rivalarrival at
Sat Jul 26 02:24:21 CEST 2008

Jim Morris wrote:
> Matt Luzum wrote:
>> I'm using 2007.2.  I've attached everything in 
>> /usr/share/oopenmoko/scenarios/, and I don't believe I've updated 
>> anything since I received a call earlier today that sounded fine on both 
>> ends, so they should be good.  Also, I'm using T-mobile in the U.S.
> Ok so the state files are identical to mine, I also use T-Mobile in the US, yet I have a terrible 
> buzzing and you don't.
> That in itself is very interesting.
> Anyone from Openmoko want to jump in here and give us an update?
> Thanks
> Jim
Can you correlate the buzzing to your signal level?  IIRC, most phones 
will increase transmit power as needed to overcome noise.  If the noise 
is caused by RFI from the GSM radio, increased power would tend to 
increase the interference.


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