Playing short selfmade sound with immediate start in iOS

I have a self-generated DTMF sound (with a wav header) generated by program that I want to be able to play quickly, in fact as soon as the user touches a bu开发者_运维技巧tton. This DTMF sound must play/loop infinitely, until I stop it. Some other sounds must be able to be played at the same time.

I'm very new to Audio programming, and I tested many ways of doing that and I'm lost now.

How can I achieve that ?

Needs :

• very quick playback start (including the first time)
• many sounds at the same time (short sounds +- 2-6 seconds)
• infinite DTMF sound without gaps
• having control over the different sounds that are playing / being able to stop just one played sound

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AVAudioPlayer if you can live with some latency, OpenAL (for example Finch) if you really need to have the latency as low as possible.

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I use already exist .wav file. and I can easily play it.

For run following code. include AudioToolbox framework.

write into .h file #import <AudioToolbox/AudioToolbox.h>
Write into .m file

-(IBAction)startSound{

    //Get the filename of the sound file:
    NSString *path = [NSString stringWithFormat:@"%@%@", [[NSBundle mainBundle] resourcePath], @"/sound1.wav"];

        //declare a system sound
        SystemSoundID soundID;

    //Get a URL for the sound file
    NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];

    //Use audio sevices to create the sound
    AudioServicesCreateSystemSoundID((CFURLRef)filePath, &soundID);
    //Use audio services to play the sound
    [self sound];
    timer =[ [NSTimer scheduledTimerWithTimeInterval:2.1 target:self selector:@selector(sound) userInfo:nil repeats:YES]retain];

}