Michael Zanetti a écrit : > On Wednesday 15 October 2008 08:18:40 Marco Trevisan (Treviño) wrote: >> Here you are [1]. It includes also the mwester fix for re-registering >> network and my workaround for GSM firmware crash. I hope it won't have >> any incompatibility with your installed Qtopia... >> >> [1] >> http://downloads.tuxfamily.org/3v1deb/openmoko/libficgta01vendor-echo-cance >> llation.so.tar.gz > > Thanks for the lib. Unfortunately it doesn't seem to fix the echo issue > here... > Also the buzzing noise is still very loud... > > Any suggestions?
For what I read in : http://n2.nabble.com/GSM-noise-%22buzz%22-issue-tc675090.html I think I can write 2 things : Firstly : there is a difference between : - echo cancellation (what we want) - echo suppression (no transmission when no one talks) Even if http://downloads.tuxfamily.org/3v1deb/openmoko/libficgta01vendor-echo-cancellation.so.tar.gz ends with 'cancellation', are we sure we are talking about that ? Some older posts in this thread mentioned 'echo suppression'... Secondly : the buzzing noise is due to RF (radiofreq) parasites, and seems to be a hardware problem (related to the jack, because plugging a jack increases the noise a lot more). As long as we do not have a software fix (like for GPS/SDcard) or a hardware easy-to-do hack, maybe we should use a bluetooth earset because it seems to be a valid solution, cf. last messages in mentioned thread. Xavier. _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community