WaveformView
Interface for displaying audio data as waveform for Android.
The component supports 2 modes:
- Recording: Suitable for use when recording audio.
- Playback: Suitable for use when playing audio. Samples are displayed as a classical waveform with optional playback indicator.
##Examples: Recording Example:
activity_main.xml
<com.newventuresoftware.waveform.WaveformView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
app:mode="RECORDING"
android:background="#000000"
android:id="@+id/waveformView" />MainActivity.java
mRealtimeWaveformView = (WaveformView) findViewById(R.id.waveformView);
mRecordingThread = new RecordingThread(new AudioDataReceivedListener() {
@Override
public void onAudioDataReceived(short[] data) {
mRealtimeWaveformView.setSamples(data);
}
});Playback Example:
activity_main.xml
<com.newventuresoftware.waveform.WaveformView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
app:mode="PLAYBACK"
app:waveformStrokeThickness="3"
app:waveformColor="#e5dc33"
app:waveformFillColor="#e93519"
android:background="#000000"
android:id="@+id/playbackWaveformView" />MainActivity.java
final WaveformView mPlaybackView = (WaveformView) findViewById(R.id.playbackWaveformView);
mPlaybackThread = new PlaybackThread(samples, new PlaybackListener() {
@Override
public void onProgress(int progress) {
mPlaybackView.setMarkerPosition(progress);
}
@Override
public void onCompletion() {
mPlaybackView.setMarkerPosition(mPlaybackView.getAudioLength());
}
});
mPlaybackView.setChannels(1);
mPlaybackView.setSampleRate(44100);
mPlaybackView.setSamples(samples);For more information on recording and playback of raw audio in Android check out my [blog post] (http://www.newventuresoftware.com/blog/record-play-and-visualize-raw-audio-data-in-android/).
##License MIT