I am running into trouble with playing an audio stream when the application enters background.
I use the code to start the stream:
NSURL *mediaURL =
I didn't tried it myself but this looks promising: iOS Multitasking: Background Audio
Once the project has been created go to APP-Info.plist and add UIBackgroundModes as a new row. It should then create the array.
Open the array and to the right of Item 0 set it to audio.
EDIT
Is your AVAudioSession set up properly?
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];
[audioSession setActive:YES error:nil];