AudioFlinger could not create track. status: -12

user_1599837 0
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I am programming for android 2.2 and am trying to using the SoundPool class to play several sounds simultaneously but at what feel like random times sound will stop coming out of the speakers.

for each sound that would have been played this is printed in the logcat:

AudioFlinger could not create track. status: -12 
Error creating AudioTrack
Audio track delete

No exception is thrown and the program continues to execute without any changes except for the lack of volume. I've had a really hard time tracking down what conditions cause the error or recreating it after it happens. I can't find the error in the documentation anywhere and am pretty much at a loss.

Any help would be greatly appreciated!

Edit: I forgot to mention that I am loading mp3 files, not ogg.

soundpool android
9 Answers

I was with this problem. In order to solve it i run the method .release() of SoundPool object after finish playing the sound.

Here's my code:

SoundPool pool = new SoundPool(10, AudioManager.STREAM_MUSIC, 50);
final int teste = pool.load(this.ctx,this.soundS,1);
pool.setOnLoadCompleteListener(new OnLoadCompleteListener(){

@Override 
    public void onLoadComplete(SoundPool sound,int sampleId,int status){
        pool.play(teste, 20,20, 1, 0, 1);
        new Thread(new Runnable(){
@Override                       
     public void run(){
         try {
        Thread.sleep(2000);
                pool.release();
         } catch (InterruptedException e) { e.printStackTrace(); }
         }
        }).start();
    }
});

Note that in my case my sounds had length 1-2 seconds max, so i put the value of 2000 miliseconds in Thread.sleep(), in order to only release the resources after the player have had finished.

user_13942720

I see too many overcomplicated answer. Error -12 means that you did not release the variables. I had the same problem after I played an OGG audio file 8 times. This worked for me:

SoundPoolPlayer onBeep; //Global variable 

    if(onBeep!=null){
       onBeep.release();
    }
    onBeep = SoundPoolPlayer.create(getContext(), R.raw.micon);
    onBeep.setOnCompletionListener(
       new MediaPlayer.OnCompletionListener() {
          @Override
          public void onCompletion(MediaPlayer mp) {    //mp will be null here
             loge("ON Beep! END");
             startGoogleASR_API_inner();
             }
                        }
          );
    onBeep.play();

Releasing the variable right after .play() would mess things up, and it is not possible to release the variable inside onCompletion, so notice how I release the variable before using it(and checking for null to avoid nullpointer exceptions).

It works like charm!

user_29506180
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