symbian sound issue with PJSIP stack

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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
>>
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>> pjsip at lists.pjsip.org
>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>>
>>
>
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>
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