On Mon, Sep 1, 2008 at 12:33 PM, Victor Librado <vlibrado at bioingenieria.es>wrote: > > Hello all, > > I am testing the new simple echo_suppress port as I see it was included > in the new release of pjsip. It is running on an arm processor, 200 Mhz. > > Compilation is made with the --disable-floating-point option. Options in > pjsua demo file for audio are: > > --add-codec=pcmu > --auto-conf > --quality=6 > --ptime=10 The --auto-conf, --quality, and --ptime probably is not necessary. > > --clock-rate=8000 > --ec-tail=512 We don't normally need this long for the ec-tail, so try removing the --ec-tail option to get the default setting (which 200 ms). > > --ec-opt=2 > > Audio latencies set to default (100 ms I assume). > > I have tested different ec_tail lengths but I have same result: echo is > present. It seems not to work for me. > > Do you not hear any difference at all compared with when the ES is disabled (with --ec-tail 0)? With the current algorithm, the ES does not remove the echo completely but rather bring the level down so that it's not too annoying. So I could understand that some low audible echo is still going through. I have seen that in echo_suppress.c file there are some defines. I > assume values predefined are correct. > > Yep. > Cpu usage goes to 15% approx (so ok, compared to my test with AEC --of > course, no way with AEC--). > > The CPU usage should be lower with shorter tail. > snd-test shows next results: > > root at at91sam9263ek:/home$ ./sndtest-arm-angstrom-linux-gnueabi > 13:30:27.571 sndtest.c Frame interval: min=0.019ms, max=16.112ms > 13:30:27.576 sndtest.c Jitter: min=5.908ms, avg=13.472ms, > max=16.089ms > 13:30:27.578 sndtest.c Frame interval: min=0.023ms, max=16.120ms > 13:30:27.580 sndtest.c Jitter: min=5.903ms, avg=13.459ms, > max=16.084ms > 13:30:27.583 sndtest.c Test completed with some warnings > > Thanks, I don't think sndtest results matter though since it can't show the actual recording/playback latency. Cheers Benny > > Any extra parameter for tunning at run-time or compile-time to get any > good result with ES and my audio hardware? Any tip will be welcomed. > > Best regards, > > > > Victor Librado Sancho > ------------------------------------------------------------------------ > > _______________________________________________ > 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/20080901/03e7bdec/attachment.html
