AudioServicesPlaySystemSound not playing any sound in iOS 8 device

Question

I have AVFoundation and AudioToolbox frameworks added to my project. In the class from where I want to play a system sound, I #include <AudioToolbox/AudioToolbox.h> and I call AudioServicesPlaySystemSound(1007);. I'm testing in a device running iOS 8, sounds are on and volume is high enough, but I don't hear any system sound when I run the app and AudioServicesPlaySystemSound(1007); is called... what could I be missing?

Answer 1

With iOS10 playing audio like this doesn't work:

SystemSoundID audioID;

AudioServicesCreateSystemSoundID((__bridge CFURLRef)pathURL, &mySSID);
AudioServicesPlaySystemSound(audioID);

Use this instead:

AudioServicesCreateSystemSoundID((__bridge CFURLRef)pathURL, &audioID);

AudioServicesPlaySystemSoundWithCompletion(audioID, ^{
    AudioServicesDisposeSystemSoundID(audioID);
});

Answer 2

According to the documentation:

This function (AudioServicesPlaySystemSound()) will be deprecated in a future release. Use AudioServicesPlaySystemSoundWithCompletion instead.

Use the following code snippet to play sounds:

NSURL *fileURL = [[NSBundle mainBundle] URLForResource:filename withExtension:nil]; //filename can include extension e.g. @"bang.wav"
if (fileURL)
{
    SystemSoundID theSoundID;
    OSStatus error = AudioServicesCreateSystemSoundID((__bridge CFURLRef)fileURL, &theSoundID);
    if (error == kAudioServicesNoError)
    { 
        AudioServicesPlaySystemSoundWithCompletion(theSoundID, ^{
            AudioServicesDisposeSystemSoundID(theSoundID);
        });
    }
}

Also, the completion block ensures that the sound play was completed before it is disposed of.

If this doesn't fix the issue, maybe your problem isn't code related but rather setting related (device on silent / simulator sounds muted from MAC System Preferences, make sure "Play user interface sound effects" is checked)

Answer 3

This will play system sound.

But remember system sound will not play longer sound.

NSString *pewPewPath  = [[NSBundle mainBundle] pathForResource:@"engine" ofType:@"mp3"];
NSURL *pewPewURL = [NSURL fileURLWithPath:pewPewPath];
AudioServicesCreateSystemSoundID((__bridge CFURLRef)pewPewURL, &_engineSound);
AudioServicesPlaySystemSound(_engineSound);