Thanks for responding so quick. In regards to increasing quality, we were using the default 5, and now also tried setting to 10. No difference on the Core 2 Dou machine, still has the static. Though, by dropping the quality down to 2 or 3, I was able to hear a similar static on the Core Dou. Also, playing the wave file with the playfile demo did not show the issue on the Core 2 Dou machine, it sounded fine. Also, as previously mentioned, it happens with all the codecs we have tested (PCMU, PCMUA, GSM). Perhaps some kind of stream issue with the Core 2 Dou (64 bit) machine then? I am able to try any suggestions in isolating this issue. Thanks again :-) --- Benny Prijono <bennylp at pjsip.org> wrote: > P.J. Cast. wrote: > > Hi Again, > > > > Testing with the absolute latest pjsua (even > updated > > to latest portaudio revision - no change). Under > > Leopard with a Core Dou processor, audio sounds > great. > > > > However, under Leopard with Core 2 Dou processor, > the > > audio playback has a certain static/scratchiness > to > > it. We have tried various codecs, GSM & PCMU/A, > but > > This is just a shot in the dark, but static/metal > effect could be > caused by linear resampling being used somewhere. > > Since you said that "cc 0 0" works fine, this > probably means that > the resampling in PortAudio is okay (I think PA uses > CoreUtil's > resampling when it's asked to open sound device in > clock rate that > is not supported by the device). > > So this leaves us with the resampling that pjmedia > uses. Check that > your pjsua_media_config.quality is set to 10 (value > lower than 3 > will cause linear resampling to be used). > > And perhaps it would worth checking if file playback > works okay. Try > playing back a file with 8KHz or 16KHz sampling > rate. If the audio > is not coming out good, then we can probably confirm > that the > resampling is at fault. Otherwise the bug is > elsewere (maybe in > codec, stream, etc.). > > cheers, > -benny > > > always the same noise appears. Sending audio is > fine. > > This happens for every call made or received on > the > > Core 2 Dou system (calling to another pjsua client > or > > other softphone). > > > > * The pjsua client is compiled under OSX 10.4 > (Tiger) > > * Portaudio demos also compiled under 10.4 > > * Calls on Leopard Core Dou sound great > > * Calls on Leopard Core 2 Dou have the static on > local > > played audio > > * doing "cc 0 0" on Core 2 Dou system results in > > perfect playback of local audio > > * portaudio read/write demos work great on Core 2 > Dou > > system > > > > So, it looks like some sort of RTP decoding issue > > under the Core 2 Dou if I had to guess. Perhaps a > 64 > > bit issue? We have only tested on one 10.5 Core 2 > Dou > > system (only Core 2 Dou we have), and it happens > every > > time and never under the Core Dou. > > > > It would be great if anyone out there under OSX > has > > tested with Core 2 Dou 64 Bit Leopard and can > either > > confirm a problem or say if it works great... > possibly > > could be something locally on the system, but all > > other audio playback is fine as mentioned. > > > > Any help is appreciated. > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
