How to remove vibrate effect from the iphone device

I am implem开发者_如何学Goenting chat application.I have implemented vibrate effect when user get bips.but i want to remove vibrate effect and implement sound effect.how it is possible?

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You'll need to load a sound file:

dingSoundFileURLRef = CFBundleCopyResourceURL( mainBundle,
                                              CFSTR ( "ding" ),
                                              CFSTR ( "caf" ),
                                              NULL
                                              );
AudioServicesCreateSystemSoundID( dingSoundFileURLRef, &dingSoundFileObject );

then play it:

AudioServicesPlaySystemSound( self.dingSoundFileObject );