Can you play a mp3 file from the assets folder?

Question

I store all my sounds in the res folder. I'm wondering if there is a way to store them in the assets folder and play them from there?

This is the code I'm using now:

void StartSound(int id) {
    if (id==0)
        return;

    AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
    float actualVolume = (float) audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
    float maxVolume = (float) audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
    // float volume = actualVolume / maxVolume;
    float volume=(float) ( .01*(double)cGlobals.iVol);

    // Is the sound loaded already?
    if (nLastSound!=0)
        soundPool.stop(nLastSound); 

    int t=soundPool.play(id, volume, volume, 1, 0, 1f);
    nLastSound=t;
}

I want to change this to avoid a memory error when the APK tries to load. If I remove some of the files from the res folder it works fine. I'm hopping I want have the same issue if they are saved as a file.

http://stackoverflow.com/questions/8466888/read-audio-file-from-assets-on-android — Justin Jasmann, May 28 '13 at 15:33

score 15 · Accepted Answer · edited Mar 18 '14 at 16:09

15

You can do it in another way too. Put the .mp3 files under res/Raw folder and use the following code:

MediaPlayer mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.android);
mediaPlayer.start();

edited Mar 18 '14 at 16:09

Ben Pearson

7,532
4
30
50

answered May 28 '13 at 17:20

Bharat Jyoti

394
2
6

can we use asset folder as well...? – gumuruh May 14 '20 at 17:26

score 9 · Answer 2 · answered May 28 '13 at 15:55

9

private void startSound(String filename){
    AssetFileDescriptor afd = getAssets().openFd(filename);
    MediaPlayer player = new MediaPlayer();
    player.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
    player.prepare();
    player.start();
}

answered May 28 '13 at 15:55

Charlie-Blake

10,832
13
55
90

openFd throws an IOException, so that would need to be handled. – Ben Pearson Mar 19 '14 at 11:38
3

Yup, but that's kind of trivial. – Charlie-Blake Mar 19 '14 at 11:42
where is filename? Is it under assets / under raw? – gumuruh May 14 '20 at 17:26
afd needs to be closed after setDataSource is called – SloCompTech Apr 20 '21 at 21:52

ישו אוהב אותך · Answer 3 · 2017-06-08T04:03:41.900

You can use the following code to play a specific audio file (i.e your_file.mp3) in your assets folder with:

MediaPlayer mediaPlayer = new MediaPlayer();
AssetFileDescriptor afd = context.getAssets().openFd("your_file.mp3");
mediaPlayer.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
afd.close();
mediaPlayer.prepare();
mediaPlayer.start();

And to play a raw resource file (i.e your_file) with:

MediaPlayer mediaPlayer = new MediaPlayer();
AssetFileDescriptor afd = context.getResources().openRawResourceFd(R.raw.your_file));                    
mediaPlayer.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
afd.close();
mediaPlayer.prepare();
mediaPlayer.start();

You initialized `MediaPlayer mediaPlayer = new MediaPlayer();` but you rather called `player.prepare();`. etc. — Gordons, Jun 02 '17 at 09:54

score 0 · Answer 4 · answered Mar 26 '19 at 12:41

start sound

startSound("mp3/ba.mp3");

method

private void startSound(String filename) {
    AssetFileDescriptor afd = null;
    try {
        afd = getResources().getAssets().openFd(filename);
    } catch (IOException e) {
        e.printStackTrace();
    }
    MediaPlayer player = new MediaPlayer();
    try {
        assert afd != null;
        player.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
    } catch (IOException e) {
        e.printStackTrace();
    }
    try {
        player.prepare();
    } catch (IOException e) {
        e.printStackTrace();
    }
    player.start();
}

Can you play a mp3 file from the assets folder?

4 Answers4

Linked