Latency free MMAPI audio recording and play.

Question

ByteArrayOutputStreamEx output = new ByteArrayOutputStreamEx(300000);
            Player recorder = null;
            RecordControl rc = null;
            try {
                recorder = Manager.createPlayer("capture://audio?encoding=amr");
                recorder.addPlayerListener(this);
                recorder.realize();
                recorder.prefetch();
                recorder.start();
            } catch (IOException ex) {
                ex.printStackTrace();
            } catch (MediaException ex) {
                ex.printStackTrace();
            while(stopThread != true){
                try{
                    output.reset();
                    rc  = (RecordControl)recorder.getControl("RecordControl");
                    rc.setRecordStream(output);
                    rc.startRecord();
                    sleep(5000);
                    rc.commit();
                    ByteArrayInputStreamEx playerInput = new ByteArrayInputStreamEx(output.toByteArray(),output.size());
                    Player playit = Manager.createPlayer(playerInput,"audio/amr");
                    playit.start();
}Quick explaination :
The purpose of this code is to record the user and immediately play the sound , with minimal latency in between, in continous repeating loop.
ByteArrayInputStreamEx and ByteArrayOutputStreamEx are my versions of the streams that -do not - use dynamic memory, just reuse the same original buffer (300k in this case)
Another tweak I used to avoid reallocating memory for each call is I leave the recording player working without stopping/starting it and just reset the record-control.
Problem is, for some reason the recorded data doesn't really get reset ...
Any ideas ? what did I do wrong?

Answer 1

Another tweak I used to avoid reallocating memory for each call is I leave the recording player working without stopping/starting it and just reset the record-control.
Problem is, for some reason the recorded data doesn't really get reset ...
Any ideas ? what did I do wrong?DannyZB,
What do you mean that the recorded data doesn't get reset?
Does the player play anything at all?
I think you should create and call realize() on player initially outside of the loop and then start() and stop() in the course of your loop. You should also have 1 RecordControl obtained outside of the loop.
Daniel