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iPhone iPad Media Q&A » AVAudioPlayer » audio 

1. AVAudioPlayer, Audio Session Categories and lock    stackoverflow.com

I'm using AVAudioPlayer to play sounds on a game. When the user locks the device, I pause the game (and send it to a resume view) and want all the sounds ...

2. AVAudioPlayer currentTime problem    stackoverflow.com

I'm trying to use the audioplayer with a slider in order to seek into a track (nothing complicated). But I have a weird behavior... for some value of currentTime (between 0 and ...

3. Waveform API from Apple commercial?    stackoverflow.com

In the new iPhone 3GS commercial, Apple shows voice control with a cool blue waveform animation. Is this visual effect for rendering the waveforms (or maybe just volumes) available as an ...

4. AVAudioPlayer initialization error    stackoverflow.com

I initialize my AVAudioPlayer instance like:

[self.audioPlayer initWithContentsOfURL:url error:&err];
url contains the path of an .m4a file The following error is displayed in the console when this line is called :"Error Domain=NSOSStatusErrorDomain Code=1685348671 "Operation ...

5. iPhone - AVAudioPlayer - convert decibel level into percent    stackoverflow.com

I like to update an existing iPhone application which is using AudioQueue for playing audio files. The levels (peakPowerForChannel, averagePowerForChannel) were linear form 0.0f to 1.0f. Now I like to use ...

6. AVAudioPlayer with external URL to *.m4p    stackoverflow.com

My Problem is the following. I got this code and i guess a corrupt NSURL since the AVAudioPlayer is nil after initializing:

NSString *dummyURLString = @"http://a825.phobos.apple.com/us/r2000/005/Music/d8/a8/d2/mzi.jelhjoev.aac.p.m4p";
NSError *error;
NSURL *url = [NSURL URLWithString:dummyURLString]; 
AVAudioPlayer ...

7. Is it OK to mix AudioServicesPlaySystemSound and AVAudioPlayer?    stackoverflow.com

We have a game that is very close to being released, but we have one extremely annoying problem. One on of our Beta testers phones, he can't hear any of ...

8. How to determine length of audio file associated with AVAudioPlayer    stackoverflow.com

Does anyone know how to get attributes from a file associated with an instance of AVAudioPlayer..specifically I am looking how to determine the length of a WAV file.

9. Supported Audio file formats in iPhone    stackoverflow.com

What are the supported audio files formats in iPhone? If I want to play a 2 hour audio files , what is the best audio file format I should have in my ...

10. AVAudioPlayer initialization: error code -50    stackoverflow.com

I recently ran into a problem that I couldn't find discussed anywhere on the internet - I was initializing an AVAudioPlayer to play an audio file, and getting the following error:

Error ...

11. iPhone AVAudioPlayer loop stuttering?    stackoverflow.com

I have a sound that is about 2 seconds long which I have set it's it's numberOfLoops property to -1, but it has a .5 second lag between loops i ...

12. Strange behaviour with AVAudioPlayer on the iPhone    stackoverflow.com

I'm attempting to play a sound using AVAudioPlayer. Should be simple, but I'm seeing some odd results. Code:

NSString *path = [[NSBundle mainBundle] pathForResource:@"pop" ofType:@"wav"];
NSURL *url = [NSURL fileURLWithPath:path];
AVAudioPlayer *sound = [[AVAudioPlayer alloc] ...

13. How does AVAudioPlayer load audio data?    stackoverflow.com

Does it load the entire file at a time? Or does it act lazy and load a chunk at a time? I'm primarily interested in knowing how much memory my audio ...

14. What is the Mac equivalent of AVAudioPlayer?    stackoverflow.com

I am porting an iPhone app to Mac. On iPhone I use AVAudioPlayer for playing sounds, but it doesn't exist on Mac. What would be the Mac equivalent for playing ...

15. seamless dynamic audio loop on iPhone    stackoverflow.com

Ok, So I am trying to seamlessly loop together three sound files with the second file being looped against itself n times. Let's assume I can get them to loop seemlessly together ...

16. Need an iOS 4 Audio API that can be used like the alarm app    stackoverflow.com

I am working on an alarm application, I need to find the best method of playing a sound that will:

  • Play a looped sound, or pre-looped sound when the app is in ...

17. pause/start AVAudioPlayer without glitchy pops    stackoverflow.com

I'm playing back a longish audio file (20 seconds or so) using AVAudioPlayer. I need to be able to pause and start in the middle of the file. When I pause ...

18. iPhone development - using the default message and ring tones from the iPhone    stackoverflow.com

I have been searching almost everywhere for a solution. I have a iPhone application and i want to play one of the integrated tones on the phone. Couldent find it in the iPhone ...

19. Problems with AVAudioPlayer    stackoverflow.com

I'm new to the iPhone-Development. I want to play a Sound when an UIButton is tapped. I tried the following: ViewController.h:

@interface JahrenzeitenViewController : UIViewController <AVAudioPlayerDelegate> {

    UIButton *button_PlaySound;
  ...

20. How to configure left channel and right channel seperately in AudioUnit or OpenAL    stackoverflow.com

I am generating sine wave tones with two different frequency(say 440hz and 445hz). I need to play this tones in left channel and right channel respectively.I am successful in playing this ...

21. AVAssetWriter / AVAudioPlayer Conflict?    stackoverflow.com

Weeks ago, I posted this thread regarding problems I was having with AVAssetWriter: AVAssetWriter Woes Further research seems to lead to a conflict using AVAssetWriter while playing audio with AVAudioPlayer or, ...

22. Problem with AVAudioPlayer ? Creating delay    stackoverflow.com

While using AVAudioPlayer .... Sound not playing at instant if i click button... and in that class i have one NSTimer which keep changing image so for that purpose i have ...

23. Create an audio data programmatically    stackoverflow.com

Hi can anyone help me how to create an audio data programmatically. I know how to play sound files on my resources, but what I need is a silent audio that I ...

24. Iphone application with audio player    stackoverflow.com

I have added music files in application's document folder and I am playing that music from AVAudioPlayer. How can I get Its title , album name and artist name. I ...

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