first thanks for ur kindly response. Nanang : in fact, i did try all these solutions before. i tried plugging in a headset so there's no echo and the problem disappears. (it's good but that's not what i wnat :( ) therefore, i tried to use symbian APS to route the audio signal. however, it seems APS won't work on some device, e.g, nokia 6110. by the way, i tried FRING also. i found they takes adventage on APS as well and found it can work on all the devies that i tried. Any idea? ----- Original Message ----- From: "Nanang Izzuddin" <nanang@xxxxxxxxx> To: "pjsip list" <pjsip at lists.pjsip.org> Sent: Saturday, October 18, 2008 12:58 AM Subject: Re: symbian sound issue with PJSIP stack > Hi, > > Just tried audio loopback on E65 but unfortunately the high freq noise > problem was not reproducible here. > > Do you think the high freq noise is caused by accumulated echo effect? > Perhaps the easiest way to make it sure is by plugging in a headset so > there should be no echo, then see if the problem disappears. > > If it is caused by accumulated echo, audio routing should be the > alternative/quick solution, it can be achieved by using APS > (http://trac.pjsip.org/repos/wiki/APS), or applying audio routing API > (http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2008-July/003969.html). > > FYI, echo suppressor is disabled by default on Symbian sample > applications. And to enable it, some 'tuning up' steps may be required > (e.g: latency info is needed by echo suppressor, while currently it is > set to 0). > > Regards, > nanang > > > On Wed, Oct 15, 2008 at 3:40 PM, john <johnswyen at geoinfor.com.tw> wrote: >> hi all, >> >> I'm using the PJSIP stack downloaded from >> http://www.pjsip.org/release/1.0/pjproject-1.0.zip and meet some problem >> with making a sip call. >> When the call has been successfully made(the "m" functionality), some >> high >> frequency noise belong with some echo effect can be heard from each >> phone's >> "loud speaker". Same problem also occurred in the loopback >> functionality(press "l"). >> >> To reproduce the problem, pls follow the steps below: >> 1) download http://www.pjsip.org/release/1.0/pjproject-1.0.zip and port >> into >> Carbide 1.3 with "bld.inf". >> 2) rename [root]\pjproject-1.0\pjlib\include\pj\config_site_sample.h to >> config_site.h >> 3) change SIP_DST_URI, SIP_DOMAIN , SIP_USER , and SIP_PASSWD in >> ua.cpp(pjproject-1.0\pjsip-apps\src\symbian_ua\) >> 4) install "symbian_ua" on target device. i've test on Nokia 6220, >> Nokia 6110, Nokia E70. >> 5) launch "symbian_ua". Now u should see that u've successfully >> registered. >> 6) press "l" to test the "loopback" functionality. Now u should hear some >> high frequency noise belong with some echo effect. >> >> Thanks in advance, >> >> BR, >> >> John >> _______________________________________________ >> 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
