On Wed, Aug 6, 2008 at 4:56 AM, Fan-Cheng Wu ?????\ <fcwu.cs95g at nctu.edu.tw>wrote: > Hi, > > I am trying pjsip via pjsua(svn version, > pjsip-apps/bin/pjsua-arm-unknown-none > --config-file=../pjproject-svn/test.cfg --ec-tail=0) on an ARM board, > which configures with ./aconfigure --host=arm CFLAGS='-O2 -msoft-float > -mcpu=arm926ej-s -march=armv5te' --disable-floating-point), and the > sound is abnormal. > 1.1 When pjsua talked with another user agent (express talk on > windows), the tone is very low with a terrible delay. > 1.2 When windows user agent talked with pjsua, the tone is very high > without delay. > > I never used express talk so I can't tell for sure who's right or what the problem is. Please always use pjsua on Windows too. :) > I had followed the troubleshooting checklists in > http://trac.pjsip.org/repos/wiki/sound-problems, and summarized them > as following, > 2.1 The speaker works properly except a static noise when > looping-back microphone to speaker device > 2.2 Playing a wav file is also fine. I assume you use pjsua to play WAV file rather than using playfile. There is a significant difference between the two, since playfile doesn't have conference bridge. > 2.3 The call qualty > >>> dq [sniip] > > 2.4 CPU utilization is around 20% (by top) > 2.5 I recorded the audio from pjsua to UA on windows > http://speed.cis.nctu.edu.tw/~fcwu/pub/output1.wav<http://speed.cis.nctu.edu.tw/%7Efcwu/pub/output1.wav>. > The result is as > similar to I described at 1.1. ( I said "Hello" and "PJSIP" on this > audio) > The audio from UA on windows to pjsua > http://speed.cis.nctu.edu.tw/~fcwu/pub/output.wav<http://speed.cis.nctu.edu.tw/%7Efcwu/pub/output.wav>. > It is different as > I described at 1.2. No high tone happened. (!!??) > > Could anyone tell me how to fix these sound problems or give me a > direction. > Thanks for following the troubleshooting wiki, that certainly has helped much. Apart from the WAV, all metrics look okay, although the "dq" output doesn't show the TX statistics (I pressume because the other end doesn't support RTCP). That's why I recommend to use pjsua on the other side too. My only suggestion now is to use pjsua on the Windows side, and also capture the RTP packets with Wireshark and analyze the packet interval and also dump the payload to WAV file to get third opinion on this. I would be interested to see the .pcap file. Cheers Benny > > Thanks a lot. > > Best Regards, > Fan-Cheng Wu > > _______________________________________________ > 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... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080806/f429bd76/attachment.html
