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Thread: Need your help on SPEEX and iLBC implementation
Need your help on SPEEX and iLBC implementation
user name
 2007-02-14 04:18:51 

  


  

    
hi,
  
 
  
As for now we are using Sip-Communicator1.0 for our project  
we would like to upgrade our sip-communicator project according to 
  
sip-communicator alpha version for improving the audio quality .
  
 
  
we have analyzed the sip-communicator alpha coding and according to the 
  
Mediacontrol class and net.java.sip.communicator.impl.media.codec package we have updated the code in our sip-communicator project .
  
 
  
But we are getting a problem like while using ilbc we are getting more 
  
noise and there is delay in transmission .
while using speex codec we dont get audio at all .we are using asterisk1.4 
  
plz we will be more benefited if u could tell us the classes to be refered 
  
and the changes has to be made for implementing these 2 code
  
 
  
regards,
  
Gokul
 


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    Re:  Need your help on SPEEX and iLBC
implementation
  


  

     user name

     2007-02-14 19:09:56
  


  

    
Hi,

I am potentially working on one of these issues.

> But we are getting a problem like while using ilbc we
are getting more
> noise and there is delay in transmission .

Do you mean that as time goes by, you get more and more
noise, or do you
mean that you get more noise than actual voice ? The ilbc
implementation
has been tested on a few minutes long samples (like 3/5
minutes) without
issues. Can you provide more details ?

Also, as said earlier, I am potentially working on this : in
an effort
to reduce latency within Sip Communicator, we are trying to
provide a
native linux capture interface to cut latency from the
recording part
(please note that this package is a linux-specific one
because it uses
native code).

This work is nearly finished, although I could not deal with
it lately
(sorry Emil  ).

Jean

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