Am Freitag, 29. August 2008 07.13:41 schrieb Dale Maggee: > Daniel Selinger wrote: > > I've experimented with alsa settings for the last 3 hours and want to > > share my experience now. > > I was doing this on top of QTopia 4.3.2 and it's default > > gsmhandset.state file. > > > > The relevant mixer settings i found to, in my case completely eliminate > > the echo for the caller, are the following > > (Setting -> Old Val -> New Val): > > > > 'Speaker Playback Volume' 127 -> 100 > > 'Mono Playback Volume' 103 -> 85 > > 'Mono Sidetone Playback Volume' 2 -> 0 > > 'Bypass Playback Volume' 7 -> 5 > > 'Mic2 Capture Volume' 0 -> 3 > > > > This settings removes the echo for the other person completely, at > > least for my hardware. I didn't hear any buzz either on my final > > testcalls, could be luck. > > > > The last thing remaining, is a bit of selfecho, which was also > > reduced with this settings but not away. (was as loud as the echo on the > > other phone with qtopia default gsmhandset.state). But didn't get away > > completely, but the other side doesn't hear anything of it. > > > > I also attach my gsmhandset.state for the case other distros have a > > different default file. (I was to lazy to check against .state of every > > distribution) > > > > If anyone has a configuration where he doesn't hear echo of himself > > talking at all, please please please provide me with an .state file, to > > check which controls are responsible for that! > > > > rgds Daniel > > ------------------------------------------------------------------------ > > These settings also removed my echo using 2007.2. > > woot! > > Note that using the settings you provided the other (non-neo) person was > very quiet, I had to adjust one of the volume settings to be able to > hear the other person (unfortunately I can't remember exactly which > setting I changed, although I'm pretty sure it was the one labelled > "mono bypass" in alsamixer. (set it at 100). Called my brother who had > previously complained loudly and constantly about echo, and now he says > there's no echo. > > I have never had problems of hearing an echo of myself, only complaints > from everybody I talk to... > > this is awesome, thanks alot! :) > > -Dale
This is absolutly great, thx both of you! I hope this gets fixed in the stable branch now. My tweak link list grows every day. To OpenMoko.. is there a way to help you with the distribution? I don't like the idea of a personal repository for hotfixes like this, i think this should go directly to the official repo's. May be we can use git in a clever way to minimize the work you have with the integration of such changes. cheers -- Andreas Zuber Linux System-Ingenieur Puzzle ITC GmbH www.puzzle.ch Telefon +41 31 370 22 00 Direkt +41 31 370 22 49 Mobile +41 79 766 25 51 Fax +41 31 370 22 01 Puzzle ist Mitglied der Eclipse Foundation: <http://www.puzzle.ch/eclipse/> _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
