Re: [android-developers] Re: AudioTrack

But how to decode mp3 file to pcm programatically

On Wed, Sep 11, 2013 at 5:53 PM, Nobu Games <dev.nobu.games@gmail.com> wrote:

From the documentation of AudioTrack:

It allows streaming PCM audio buffers to the audio hardware for playback.

PCM is basically uncompressed audio data. MP3 is compressed audio that's why you hear noise. You have two options for solving that problem:

1. Decode your MP3 stream on the fly and feed it to your AudioTrack
2. Use MediaPlayer instead of AudioTrack

On Wednesday, September 11, 2013 12:35:09 AM UTC-5, Yamusani Vinay wrote:

How to play mp3 song using audio track in android.I used following code but i am getting noise...

InputStream in = getResources().openRawResource(R.raw.ding);
                    try {
                        ByteArrayOutputStream out = new ByteArrayOutputStream(
                                in.available()
                                );
                        for (int b; (b = in.read()) != -1;) {
                            out.write(b);
                        }
                        Log.d(TAG, "Got the data");
                        audioData = out.toByteArray();

    this.releaseAudioTrack();
        this.audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 44100,
                AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_8BIT,
                audioData.length, AudioTrack.MODE_STATIC);
        Log.d(TAG, "Writing audio data...");
        this.audioTrack.write(audioData, 0, audioData.length);
        Log.d(TAG, "Starting playback");
        audioTrack.play();

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