[Freeswitch-users] FreeSWITCH port audio module

[Anthony Minessale]

You did not clarify any of the details of your machine HW, OS etc.
The issue you reported with snoms are not reproducible based on your
description so you should
try harded to pinpoint it.  Telling us you have a problem but you are not
sure why etc is not helpful because now I have to stop and wait for you to
reply if I want to help you further.
Portaudio seems to not work very well under linux and we don't have any
linux machines with sound to test it with.

Can you please provide all the details including possibly access to your
machine so we can
reproduce your issue with your machine if we can't with our own.

Consider joining irc and informing us in real time

irc.freenode.net #freeswitch



On Sun, Dec 21, 2008 at 11:58 PM, Jason White <jason at jasonjgw.net> wrote:

> One of the valuable features of FreeSWITCH is that it can be used as a soft
> phone, as described on the wiki. In testing this, I discovered the
> following
> issues, any comments on which would be welcome.
>
> 1. FreeSWITCH>pa rescan
> -ERR no reply
>
> FreeSWITCH>
>
> After plugging in a USB head set and running this command, the new device
> wasn't enumerated by pa devlist. Restarting FreeSWITCH of course solved it,
> however.
>
> 2. More seriously, when using port audio (with a head set as the audio
> device,
> in case that's significant), I'm hearing digital distortion (clipped
> samples?)
> when the other party speaks slightly more loudly than usual.
>
> When calling via a Snom phone (rather than PortAudio) I have only
> experienced
> this distortion when using FreeSWITCH under G.722, but I'll have to do more
> testing to identify the exact combinations that produce it and those which
> don't. I haven't heard it with an 8khz call from a SIP phone, so it does
> appear to be a FreeSWITCH issue to some extent. I haven't been able to
> eliminate it by adjusting the Alsa settings of my audio device.
>
> 3. I've encountered errors while trying to access an Intel HDA sound card
> with
> FreeSWITCH, whereby PortAudio fails to open the audio device. Setting the
> sample rate in portaudio.conf.xml to 48 khz may have contributed to the
> solution, but there have been other changes to my system as well (including
> a
> FreeSWITCh upgrade to revision 10889.
>
> Some sound cards only suport 48 khz, apparently, so if others have
> problems, I
> would suggest adjusting the sample rate in the configuration as I did.
>
>
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-- 
Anthony Minessale II

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