Hi Nanang, As I am a very new user of your library, I only use the high-level API (pjsua). Would you have some sample code using the methods you describe ? I can see following in the logs : 06:42:44.886 resample.c resample created: high qualiy, large filter, in/out rate=8000/16000 06:42:44.886 resample.c resample created: high qualiy, large filter, in/out rate=16000/8000 My Wav file has following format : Input Filename : Acc.wav Sample Size : 16-bits Sample Encoding: signed (2's complement) Channels : 1 Sample Rate : 8000 What does it mean ? Regards, Frederic CLEMENT Fr?d?ric a ?crit : > HI, > > Thanks very much. > I will test this tomorrow. > > Regards, > > Frederic > > On Thu, 4 Sep 2008 01:59:08 +0700, "Nanang Izzuddin" <nanang at pjsip.org> > wrote: > >> Hi, >> >> Sorry, it should be master port, one of pjmedia clock generator, here >> is the doc: >> http://www.pjsip.org/pjmedia/docs/html/group__PJMEDIA__MASTER__PORT.htm >> >> There is no default clock rate for wav player, wav player clock rate >> follows the wav file clock rate. So if you are using G711, please use >> 8000 Hz wav file to avoid resampling. >> >> Btw, replacing wav player with mem player may increase the >> performance, not sure though. >> >> Regards, >> nanang >> >> >> On 04/09/2008, Fr??d??ric CLEMENT <fclement at viatelecom.com> wrote: >> >>> /* >>> >> - use master clock (not sound device) for the clock source, since >> sound >> >>> device may be disturbed by high CPU load and CPU spikes. >>> >> - use clock rate >> >>> 8000 Hz for the master clock (or conf bridge, if you >>> >> use it) to avoid >> >>> resampling. >>> */ >>> >>> Thanks very much for this complete answer. >>> >>> I didn't understand what you mean with 'use master clock'. >>> I don't user any hardware but only your wav_player methods. >>> The clock rate is 8000 Hz by default, isn't it ? >>> >>> >>> Regards, >>> >>> Frederic >>> >>> >>> Nanang Izzuddin a ?crit : >>> Hi, >>> >> G711 is very low complexity codec >> >>> (see >>> >> http://trac.pjsip.org/repos/wiki/PJMEDIA-MIPS, stream >> >>> with G711 in P3 >>> >> 700MHz only cost < 0.1% CPU), so the codec shouldn't be the >> >>> problem. >>> >> Also your CPU utilization seems to be relatively low (although >> >>> it >>> >> supposed to be lower than 30%). So it's not the CPU limitation. >> >> Please >> >>> see this, in case you >>> haven't: >>> >> https://trac.pjsip.org/repos/wiki/FAQ#high-perf. >> And >> >>> also please try this, in case you haven't: >>> >> - use master clock (not sound >> >>> device) for the clock source, since >>> >> sound device may be disturbed by high >> >>> CPU load and CPU spikes. >>> >> - use clock rate 8000 Hz for the master clock (or >> >>> conf bridge, if you >>> >> use it) to avoid resampling. >> >> Btw, is there any chance >> >>> that the problem is in the caller/tester >>> >> (e.g: the app tester can only >> >>> handle 20 concurrent calls, so you >>> >> should run 2 instances of app tester on 2 >> >>> different machines)? >>> >> Regards, >> nanang >> >> >> On 03/09/2008, Fr??d??ric CLEMENT >> >>> <fclement at viatelecom.com> wrote: >>> >>> My Load average is about 1.00 (34 % CPU utilization). >>> >> The codec I am using >> >>> is Alaw (g711). >>> >> Can I expect to handle 100 calls with a Core2Duo or QuadCore >> >>> Xeon ? >>> >> Should I user another codec ? My switch have many implemented. >> >>> (Dialogic >>> >> Cantata IMG). >> >> Regards, >> >> Frederic >> >> >> Nanang Izzuddin a ?crit : >> Hi, >> >>> Which codec are you using? How about the CPU utilization? Since >>> >>> it's >>> >>> may be caused by CPU limitation in doing media processing >>> >>> (especially >>> >>> encoding). >>> >> Regards, >> nanang >> >> >> On 03/09/2008, Fr??d??ric CLEMENT >> >> >>> <fclement at viatelecom.com> wrote: >>> >>> Hi again all, >>> >>> I am still building an IVR server and testing the max >>> >>> possible account of >>> >>> calls that can be handled by pjsip. >>> >> I set >> >> >>> PJSUA_MAX_CALLS to 100 >>> >>> The value inf config_site.h for >>> >>> PJMEDIA_SOUND_BUFFER_COUNT is set to 16. >>> >>> My application just take calls and >>> >>> play a sound file looped. I use the pjsua >>> >>> high level methods >>> >>> (pjsua_player_create ....) >>> >>> The machine is a Pentium IV 1.9 Ghz with enough >>> >>> memory. >>> >>> When I send 20 calls, the sound stays being correct. >>> >> If I send 30 >> >> >>> simultaneous calls, I get the same result than described on >>> >>> your site >>> >>> : >>> >>> http://trac.pjsip.org/repos/wiki/audio-problem-dropouts >>> >> The >> >>> sound I have is the same than the stutter.wav found >>> >> there. >> >> > http://trac.pjsip.org/repos/attachment/wiki/audio-problem-dropouts/stutter.wav > >> Wich >> >>> optimisations can be done ? My goal is about 100 simultaneous >>> >> calls. >> >> >>> Regards, >>> >> Frederic >> >> (Sorry again for my very bad >> >> >>> english) >>> >>> _______________________________________________ >>> >> 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 >> >> >> >> >>> _______________________________________________ >>> >>> 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 >> >>> _______________________________________________ >>> >> 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 >> >> >> >> >>> _______________________________________________ >>> >> 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 >> >>> _______________________________________________ >>> 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 >>> >>> >>> >>> >> _______________________________________________ >> 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 >> > > > _______________________________________________ > 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 > -------------- next part -------------- An HTML attachment was scrubbed... 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