noise while making a phone call: hardware or software?
Lorn Potter
lpotter at trolltech.com
Fri Jan 4 03:50:30 CET 2008
Richard Reichenbacher wrote:
>>From what I can tell the noise comes and goes. When I'm in a good signal
> area I really don't hear it but when I'm in a bad signal area it's very
> loud. I asked Lorn Potter what he thought and he said it was probably a
> software issue.
If I was told that was the problem, and I said that sounded like
software, I was probably wrong. :)
That problem sounds like it might be radio interference.
There _is_ a problem with the level of some of the mixer elements in the
default gsmhandset.state, though, which seems to cause echo type of thing.
> Although I'm not too sure because I get the same sound if I
> set the phone next to my computer speakers. So maybe the case is that the
> microphone is too close to the GSM modem or the connection from the
> microphone to the board isn't shielded well enough.
>
> -----Original Message-----
> From: community-bounces at lists.openmoko.org
> [mailto:community-bounces at lists.openmoko.org] On Behalf Of Michael Shiloh
> Sent: Thursday, January 03, 2008 5:11 PM
> To: List for OpenMoko community discussion
> Subject: noise while making a phone call: hardware or software?
>
> As we all know, during a call with GTA01 noise is heard in the speaker.
> I know this has been discussed in the past and I thought someone had
> found a soft way to solve this. One of the settings in the mixer was too
> high or something like that.
>
> I've been searching for this item but all I can find is bug # 883, which
> says it's a hardware issue, interference making its way into the GSM
> audio path one way or another.
>
> Does anyone recall any software explanation for this?
>
> Michael
>
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--
Lorn 'ljp' Potter
Software Engineer, Systems Group, MES, Trolltech
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