public void startRecording(){

		int recordingBufferSize = AudioRecord.getMinBufferSize(AUDIO_SAMPLE_FREQUENCY_Hz, AudioFormat.CHANNEL_CONFIGURATION_STEREO, AudioFormat.ENCODING_PCM_16BIT) * 4;

		if (mAudioFile.exists())// Delete any previous recording.
			mAudioFile.delete();

		try {
			mAudioFile.createNewFile();
		} catch (IOException e) {
			throw new IllegalStateException("Failed to create " + mAudioFile.toString());
		}

		try {

			// Create a new AudioRecord object to record the audio.
			audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC,
					AUDIO_SAMPLE_FREQUENCY_Hz, AudioFormat.CHANNEL_CONFIGURATION_STEREO,
					AudioFormat.ENCODING_PCM_16BIT, recordingBufferSize);

			audioRecord.startRecording();

			FileOutputStream fos = new FileOutputStream(mAudioFile);
			FileChannel fchannel = fos.getChannel();

			ByteBuffer recordingBuffer = ByteBuffer.allocateDirect(recordingBufferSize);
			recordingBuffer.order(ByteOrder.LITTLE_ENDIAN);

			//Log.w("SoundTouchJNI", "Native Byte Order is "+ sampleBuffer.order());
			while (isRecording) {

				int bufferReadResult = audioRecord.read(recordingBuffer, recordingBufferSize);

				Log.w("SoundTouchJNI", "Writing bytes "+ String.valueOf(bufferReadResult));
				fchannel.write(recordingBuffer);
				recordingBuffer.rewind();
			}
			fchannel.close();

			audioRecord.stop();
			fos.close();


		}catch (Throwable t) {
			Log.e("AudioRecord","---------------- " + t.getMessage());
		}
	}