Example usage for android.media AudioTrack AudioTrack

Introduction

In this page you can find the example usage for android.media AudioTrack AudioTrack.

Prototype

private AudioTrack(AudioAttributes attributes, AudioFormat format, int bufferSizeInBytes, int mode,
            int sessionId, boolean offload) throws IllegalArgumentException 

Source Link

Usage

From source file:com.cypress.cysmart.RDKEmulatorView.RemoteControlEmulatorFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    /**/* w  w  w  .j  ava2 s . c  om*/
     * Getting the current orientation of the screen
     * Loading different view for LandScape and portrait
     */
    int currentOrientation = getResources().getConfiguration().orientation;
    if (currentOrientation == Configuration.ORIENTATION_LANDSCAPE) {
        mParentView = inflater.inflate(R.layout.rdk_emulator_view_landscape, container, false);
    } else {
        mParentView = inflater.inflate(R.layout.rdk_emulator_view_portrait, container, false);
    }
    mProgressDialog = new ProgressDialog(getActivity());
    /**
     * Getting the ID's of all Emulator view UI elements
     */
    Button mTrackpadView = (Button) mParentView.findViewById(R.id.trackpad_btn);
    Button mMicrophoneView = (Button) mParentView.findViewById(R.id.microphone_btn);
    mVolumePlusbtn = (ImageButton) mParentView.findViewById(R.id.volume_plus_btn);
    mVolumeMinusBtn = (ImageButton) mParentView.findViewById(R.id.volume_minus_btn);
    mChannelPlusBtn = (ImageButton) mParentView.findViewById(R.id.channel_plus_btn);
    mChannelMinusBtn = (ImageButton) mParentView.findViewById(R.id.channel_minus_btn);
    mLeftBtn = (ImageButton) mParentView.findViewById(R.id.left_btn);
    mRightBtn = (ImageButton) mParentView.findViewById(R.id.right_btn);
    mBackBtn = (ImageButton) mParentView.findViewById(R.id.back_btn);
    mGesturebtn = (ImageButton) mParentView.findViewById(R.id.gesture_btn);
    mExitBtn = (ImageButton) mParentView.findViewById(R.id.exit_btn);
    mPowerBtn = (ImageButton) mParentView.findViewById(R.id.power_btn);
    mRecBtn = (ImageButton) mParentView.findViewById(R.id.record_btn);
    mRecBtn = (ImageButton) mParentView.findViewById(R.id.record_btn);
    /**
     * AudioTrack class initialisation as follows
     *  streamType- AudioManager.STREAM_MUSIC,
     *  sampleRateInHz- 16000,
     *  channelConfig- AudioFormat.CHANNEL_OUT_MONO,
     *  audioFormat-AudioFormat.ENCODING_PCM_16BIT,
     *  bufferSizeInBytes-8000,
     *  mode- AudioTrack.MODE_STREAM
     *
     */
    mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, SAMPLE_RATE, AudioFormat.CHANNEL_OUT_MONO,
            AudioFormat.ENCODING_PCM_16BIT, BUFFER_SIZE, AudioTrack.MODE_STREAM);
    /**
     * TrackPAd button click listner
     */
    mTrackpadView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            TrackpadEmulatorFragment trackpadService = new TrackpadEmulatorFragment();
            try {
                displayView(trackpadService);
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    });
    /**
     * Microphone Button click listner
     */
    mMicrophoneView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            MicrophoneEmulatorFragment microphoneService = new MicrophoneEmulatorFragment();
            microphoneService.create(mservice);
            displayView(microphoneService);
        }
    });
    return mParentView;
}

---

From source file:org.noise_planet.noisecapture.CalibrationLinearityActivity.java

private void playNewTrack() {

    double rms = dbToRms(99 - (splLoop++) * DB_STEP);
    short[] data = makeWhiteNoiseSignal(44100, rms);
    double[] fftCenterFreq = FFTSignalProcessing
            .computeFFTCenterFrequency(AudioProcess.REALTIME_SAMPLE_RATE_LIMITATION);
    FFTSignalProcessing fftSignalProcessing = new FFTSignalProcessing(44100, fftCenterFreq, 44100);
    fftSignalProcessing.addSample(data);
    whiteNoisedB = fftSignalProcessing.computeGlobalLeq();
    freqLeqStats.add(new LinearCalibrationResult(fftSignalProcessing.processSample(true, false, false)));
    LOGGER.info("Emit white noise of " + whiteNoisedB + " dB");
    if (audioTrack == null) {
        audioTrack = new AudioTrack(getAudioOutput(), 44100, AudioFormat.CHANNEL_OUT_MONO,
                AudioFormat.ENCODING_PCM_16BIT, data.length * (Short.SIZE / 8), AudioTrack.MODE_STATIC);
    } else {/* w  w  w . j  av  a  2 s. c o m*/
        try {
            audioTrack.pause();
            audioTrack.flush();
        } catch (IllegalStateException ex) {
            // Ignore
        }
    }
    audioTrack.setLoopPoints(0, audioTrack.write(data, 0, data.length), -1);
    audioTrack.play();
}

---

• «
• 1
• 2
• »