Call noise on buzz-fixed freerunner with Qtmoko
Radek Polak
psonek2 at seznam.cz
Fri Jun 18 21:01:20 CEST 2010
Peter Mogensen wrote:
> Hi,
>
> I've installed Qtmoko V24 on a buzzfixed Freerunner, but people still
> complain that there's so much noise in the other end that it's
> impossible to understand.
>
> I've checked that the ALSA state file is about the same a recommended
> for buzz fixed phones.
You can tweak alsa state in NeoControl application.
> I'm wondering whether there some echo-cancellation missing in the modem
> configuration.
> Where is that configured on Qtmoko?
Echo cancelation is enabled by default. It's hardcoded in modem plugin and
cant be disabled. You can search for "echo" in this source file:
http://github.com/radekp/qtmoko/blob/master/devices/neo/src/plugins/phonevendors/neo/vendor_neo.cpp
But i think echo is not the same as noise. When i had echo last time the voice
was clean, but repeating so that the other side could not speak, but he heard
me ok.
I dont know what can be the cause for noise.
Regards
Radek
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