Leak Leak Leak ! in AudioToolbox

[sharhelia]

HI
i am making an app in which there are 30 images in a scroll view and as i scroll from one image to another a sound is being played on every image by calling a method playSound. the code is below . but when i run the code through performance tool it gives leak in audioToolbox, please help me with this AVAudio player.

-(void)playSound
{
	self.view.userInteractionEnabled=FALSE;
	NSLog(@"play sound called start");

	
	NSString *myExamplePath = [[NSBundle mainBundle] pathForResource:@"ting" ofType:@"mp3"];
	NSURL *fileURL = [[NSURL alloc] initFileURLWithPath:myExamplePath];
	self.soundFileURL = fileURL;
	[fileURL release];
	[[AVAudioSession sharedInstance] setDelegate: self];
	[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryAmbient error: nil];
	// Registers the audio route change listener callback function
  //  AudioSessionAddPropertyListener (kAudioSessionProperty_AudioRouteChange,audioRouteChangeListenerCallback, self);
                                   
	
    // Activates the audio session.
	
    NSError *activationError = nil;
    [[AVAudioSession sharedInstance] setActive: YES error: &activationError];
	
    AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL: soundFileURL error: nil];
	
	
	self.myExampleSound = newPlayer;
	[newPlayer release];
	[myExampleSound setDelegate:self];
	[myExampleSound play];
	
	repeatCount = [[noOfCharsArray objectAtIndex:curr_page]intValue] ;
	counter = 0;
	
	NSRunLoop *runloop = [NSRunLoop currentRunLoop];

	colorTimer = [[[NSTimer alloc] init]autorelease];
	colorTimer = [NSTimer timerWithTimeInterval:0.1 target:self selector:@selector(changeColor) userInfo:nil repeats:YES];
	[runloop addTimer:colorTimer forMode:NSRunLoopCommonModes];
	[runloop addTimer:colorTimer forMode:UITrackingRunLoopMode];
	
	NSLog(@"play sound called end");

		
}

-(void)changeColor
{
	NSLog(@"changeColor start");
 	if(counter <repeatCount)
	{
		   
		
		NSString *myString =  _name;
		NSMutableArray *characters = [[NSMutableArray alloc] initWithCapacity:[myString length]];
		for (int i=0; i < [myString length]; i++) {
			NSString *ichar  = [NSString stringWithFormat:@"%c_orange.png", [myString characterAtIndex:i]];
			[characters addObject:ichar];
		}
		
		UIImageView *Ab = [self.view viewWithTag:counter+1];
	    Ab.image = [UIImage imageNamed:[characters objectAtIndex:counter]];
		[characters release];
		counter ++;
	   }
	   else
	   {
		   [colorTimer invalidate];
		   NSLog(@"invalidate");
		   btn.enabled=TRUE;
		   self.view.userInteractionEnabled=TRUE;
		   [myExampleSound stop];
	
	   }
			
	NSLog(@"changeColor end");


}

myExampleSound is declared in .h

Thanks in advance & happy coding