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Editorial Team
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Asked: 2026-05-12T07:30:47+00:00

I initialize an AVAudioPlayer instance: NSString* path = [[NSBundle mainBundle] pathForResource:@foo ofType:@wav]; AVAudioPlayer* player

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I initialize an AVAudioPlayer instance:

NSString* path = [[NSBundle mainBundle] pathForResource:@"foo" ofType:@"wav"];

AVAudioPlayer* player =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:nil]; //Returned object not nil, indicating that the file has loaded successfully


BOOL b = [player prepareToPlay]; //returns TRUE

BOOL b2 = [player play]; 
//returns TRUE, goes immediately to the next line since asynchronous


[NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:1]; //wait 1 sec

printf("%10.4f\n",player.duration); //duration is 2s

printf("%10.4f\n",player.currentTime); //position remains 0

/* There is no sound output, player is also stuck since position==0 */

Does anyone know why the AVAudioPlayer is not responding? Is there something that I am overlooking while initializing, playing the audioplayer? Boilerplate code maybe?

I am running this on the iPhone simulator. Also, AudioServicesPlaySystemSound() works for the same file, which is puzzling, but this indicates that sound playback might work with AVAudioPlayer as well.

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1 Answer

  1. Editorial Team

    I have 2 quick suggestions:

    1. Check to see if that path actually gives you data. Alloc a NSData object using [[NSData alloc] initWithContentsOfFile:path] and inspect it in the debugger to see if you’re actually loading that wav file.

    2. I wrote a sample project that uses AVAudioPlayer here: AVAudioPlayer Example. As the code is pretty much the same as yours, the only thing I can imagine is that there is a problem with your data.

    Check those out and see if it gets you anywhere!

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