Create audio sound id

audio-id.m

#import <AudioToolbox/AudioToolbox.h>

+(SystemSoundID)bleatSoundID {
  static SystemSoundID bleatSoundID = 0;
  static dispatch_once_t onceToken;
  dispatch_once(&onceToken, ^{
    NSString *soundPath =  [[NSBundle mainBundle] pathForResource:@"Bleat" ofType:@"aif"];
    AudioServicesCreateSystemSoundID((__bridge CFURLRef)[NSURL fileURLWithPath: soundPath], &bleatSoundID);
  });
  return bleatSoundID;
}

//    AudioServicesPlaySystemSound([[self class] bleatSoundID]);