AudioServicesPlaySystemSound not playing any sound in iOS 8 device - ios

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);

Answer 4

I have just tested the code on an iPad and iPhone running iOS 8, and it is working on the real devices.
For some very strange reason, it isn't working on iOS 8 simulator for any device, even though it works on iOS 7 and 7.1 simulators.
Otherwise below code works fine in all real devices.
NSString *pewPewPath = [[NSBundle mainBundle] pathForResource:#"engine" ofType:#"mp3"];
NSURL *pewPewURL = [NSURL fileURLWithPath:pewPewPath];
AudioServicesCreateSystemSoundID((__bridge CFURLRef)pewPewURL, &_engineSound);
AudioServicesPlaySystemSound(_engineSound);

Answer 5

for swift 3.x and xcode 8:
var theSoundID : SystemSoundID = 0
let bundleURL = Bundle.main.bundleURL
let url = bundleURL.appendingPathComponent("Invitation.aiff")
let urlRef = url as CFURL
let err = AudioServicesCreateSystemSoundID(urlRef, &theSoundID)
if err == kAudioServicesNoError{
AudioServicesPlaySystemSoundWithCompletion(theSoundID, {
AudioServicesDisposeSystemSoundID(theSoundID)
})
}