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 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. 2.3 The call qualty >>> dq 23:10:20.897 pjsua_app.c [CONFIRMED] To: "fcwu1104" <sip:1312627958 at 85.31.197.7>;tag=1df7bedc902385534bfa1720e43ba2c3 Call time: 00h:00m:31s, 1st res in 2463 ms, conn in 2820ms SRTP status: Not active Crypto-suite: (null) #0 PCMU @8KHz, sendrecv, peer=85.31.197.7:56952 RX pt=0, stat last update: 00h:00m:02.200s ago total 1.5Kpkt 248.1KB (310.2KB +IP hdr) @avg=62.5Kbps/78.2Kbps pkt loss=0 (0.0%), dup=0 (0.0%), reorder=0 (0.0%) (msec) min avg max last dev loss period: 0.000 0.000 0.000 0.000 0.000 jitter : 0.000 0.917 20.375 1.875 3.068 TX pt=0, ptime=20ms, stat last update: never total 3.1Kpkt 507.5KB (634.4KB +IP hdr) @avg 128.0Kbps/160.0Kbps pkt loss=0 (0.0%), dup=0 (0.0%), reorder=0 (0.0%) (msec) min avg max last dev loss period: 0.000 0.000 0.000 0.000 0.000 jitter : 0.000 0.000 0.000 0.000 0.000 RTT msec : 0.000 0.000 0.000 0.000 0.000 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. 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. 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 a lot. Best Regards, fcwu
