android - Record calls in PCM-Format -

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i trying write android app using sip-based voip (i use sipdemo template).

i need record incoming , outgoing calls , save them in pcm-format.

private static final int recorder_samplerate = 44100; private static final int recorder_channels = audioformat.channel_in_mono; private static final int recorder_audio_encoding = audioformat.encoding_pcm_16bit;

is possible?

this activity incoming calls:

 public class incomingcallreceiver extends broadcastreceiver {
  @override public void onreceive(context context, intent intent) {     sipaudiocall incomingcall = null;     try {          sipaudiocall.listener listener = new sipaudiocall.listener() {             @override             public void onringing(sipaudiocall call, sipprofile caller) {                 try {                     call.answercall(30);                 } catch (exception e) {                     e.printstacktrace();                 }             }         };          walkietalkieactivity wtactivity = (walkietalkieactivity) context;          incomingcall = wtactivity.manager.takeaudiocall(intent, listener);         incomingcall.answercall(30);         incomingcall.startaudio();         incomingcall.setspeakermode(true);         if(incomingcall.ismuted()) {             incomingcall.togglemute();         }          wtactivity.call = incomingcall;          wtactivity.updatestatus(incomingcall);      } catch (exception e) {         if (incomingcall != null) {             incomingcall.close();         }     } }

}

what source code need call recording?

thanks in advance!


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