anass kartit wrote: > Hey benny, > I want to manipulate the buffer that holds the voice data before sending > it where can I find the buffer, is it rtp[]? The buffer will be in pjmeda_frame. If you want to manipulate it, best way is to implement your own pjmedia_port so that you can hook your port to the rest of pjmedia framework. Have a look at the resample port (resample_port.c) for a sample of media port which manipulates the audio data. -benny > Sincerely, > Anass Kartit