[sip-comm-dev] echo cancellation / more multiple concurrent conversation fun (HELP)
damencho at damencho.com
Thu Nov 15 13:27:11 CET 2007
Sorry for the delay! Here is what we have done about echo cancellation.
The first archive is the modified sip-communicator source I was working
on. The second one contains source for the native part.
Most of the modifications are in MediaControl.java, CallSessionImpl.java
and in the packages
Let me know if you have any questions.
This is working under linux, but I couldn't make it work on windows as
there are problems with capturing media.
Koch Michael wrote:
> Hi Emil!
>> Hello Michael
>> Koch Michael wrote:
>>> Hello Emil, Sergei!
>>>> We (mostly Damian actually) have been working on echo
>> cancellation for
>>>> some time now. We have been using the speex utilities for
>> this. So far
>>>> we have managed to get something working on Linux but the
>> situation is
>>>> far from being ready for integration in the source code, and
>>>> it doesn't
>>>> work on Windows or Mac OS X.
>>> This sounds really interesting. We need echo cancellation for our
>>> application, so I could spend time working on it. Do you
>> think it would make
>>> sense if I have a go at the code, or would you rather not
>> publish it at this
>> The thing is that it requires substantial modifications in
>> the existing
>> code of the media package so we can't commit it until it's
>> fully tested
>> or else it would probably break everything. I don't know whether we'll
>> be able to commit soon since the project is on hold at the
>> moment, so we
>> might as well send it to you.
>> Let me know if you'd like this.
> Yes, I'd be interested. I'd like to try out if it works for our setup. If
> yes, I could take the time to work on the code to do it "properly".
> Michael Koch
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