[asterisk-users] Definite app_jack trouble - unsolvable

[Motiejus Jakštys]

Hi Julien,
I remember I had a similar issue with Jack_hook trashed sound. If I
remember well, caller heared me well, but I heard garbage (or
vice-versa, I don't remember accurately). Sorry, I don't remember how
I solved the problem (it just disapeared after changing something).
However I can recommend good tools to check what's going on with jack
ports: jack_rec (captures jack port to WAV file) and jack_capture
(same 3rd party thing with a bit more features), you can debug jack's
side.

Hope it helps.
Good luck

On Wed, Jun 2, 2010 at 12:00 AM, Julien Claassen <julien at c-lab.de> wrote:
> Greetings!
>   I now found someone to test gtalk with and found out, that app_jack has a
> problem here. My voice gets transmitted fine, but I only get white noise from
> the other party. I tried to set my JACK samplerate to 8000 to make sure it's
> no libresample problem, the results were the same.
>   My setup is:
> Linux Debian Lenny
> Kernel: 2.6.30.4 PREEMPT (self-built)
> JACKd: jackd version 0.119.0 tmpdir /tmp protocol 24 (self-built from source
> repository)
> Asterisk: 1.6.2.8-rc1 built from source-tarball
>   Just today I installed libjingle 0.4.0, the latest I could find from
> code.google.com, as well as iksemel from source-tarball.
>   Just to be on the safe site I tried building libilbc from source, but found
> no suitable source for that. So I just used the
> contrib/scripts/get_ilbc_something.sh from asterisk.
>   I also checked my soundcard and microphone, they work perfectly.
>   As stated inan earlier mail: Voicemail can be left, with perfect
> sound-quality, yet too short. This means, sound gets transmitted to my
> asterisk and asterisk should not loose it on the way.
>   Both jack ports are created without problem, when the call is established.
>   Again my output (debug in full mode, including even notices) doesn't show
> anything odd, as far as I could see.
>   So does anyone else have similar problems, can think of a reason? shall I
> use an earlier asterisk version? What else can I try? Can Iget more specific
> debugging from JACK or some other helpful diagnostics, that might point in the
> right direction?
>   Best wishes
>             Julien
>
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