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@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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