[Gta04-owner] QtMoko audio state work
Flemming Richter Mikkelsen
quatrox at gmail.com
Sat Feb 2 23:27:34 CET 2013
On Feb 1, 2013 1:47 AM, "Neil Jerram" <neil at ossau.homelinux.net> wrote:
> Radek Polak <psonek2 at seznam.cz> writes:
> > On Wednesday, January 30, 2013 12:36:54 AM Neil Jerram wrote:
> >> There must be something else I'm missing about how incoming calls are
> >> different from outgoing, and/or why that difference appears to be
> >> greater on my phone than on other A3s.
> > Or another thing to try - couldnt it be pulseaudio? I'd try removing it.
> A quick update on this area...
> - I removed pulseaudio, but that didn't fix the problem.
> - Curiously, after removing pulseaudio, I'm only getting Left channel
> audio in my headphones (for media playback, not during a call). I've
> checked all my mixer settings and am starting to think that I may have
> a broken hardware connection - but if there are other possible causes
> of this, please let me know.
> - I haven't tried doubling the buffer sizes yet.
> - After some more tests, I think the difference isn't between incoming
> and outgoing calls, but between mobile-mobile calls and mobile-POTS.
> Mobile-POTS calls are OK in both directions and mobile-mobile calls
> have bad audio in both directions. (In previous tests I always did my
> outgoing calls to my POTS line at work, but incoming calls from my
> wife's mobile.)
> - I also wondered if my "AT_OPCMPROF=3" setting might be a problem; but
> changing it to "AT_OPCMPROF=0" made no difference.
Without having any clye what I talk about, I wonder if the echo canceling
could cause initial delay which again could cause buffer under-/over-run.
Could this make sense?
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