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POHow do you make the iphone acceleromator trigger sound more effectively using avaudioplayer?
 

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  1. POHow do you make the iphone acceleromator trigger sound more effectively using avaudioplayer?
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    <p>I have created a simple app that triggers 3 different sounds based on the x, y, z axis of the accelorometer, like an instrument. At the moment, if I set the frequency update interval of the accelometer too low, it plays the sound to much, and if I set it too high it it isn't responsive enough. I am a complete beginner to objective c and iphone development, can you tell by the code!..</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; // Do any additional UIAccelerometer* accelerometer = [UIAccelerometer sharedAccelerometer]; [accelerometer setUpdateInterval: 25.0 / 10.0f]; [[AVAudioSession sharedInstance] setDelegate: self]; [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error: nil]; [accelerometer setDelegate:self]; UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker; AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof (audioRouteOverride),&amp;audioRouteOverride); player.volume = 0.5; player.numberOfLoops = 0; player.delegate = self; } - (void)accelerometer:(UIAccelerometer *)acel didAccelerate:(UIAcceleration *)aceler { if (aceler.x &gt; 0.5) { NSString *fileName = [NSString stringWithFormat:@"snare"]; NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:fileName ofType:@"mp3"]; NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath]; player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil]; NSLog(@"acceleration.x = %+.6f greater", aceler.x); [player play]; } else if (aceler.y &gt; 0.5) { NSString *fileName = [NSString stringWithFormat:@"kick2"]; NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:fileName ofType:@"mp3"]; NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath]; player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil]; NSLog(@"acceleration.y = %+.6f greater", aceler.y); [player play]; } else if (aceler.z &gt; 0.5) { NSString *fileName = [NSString stringWithFormat:@"hat"]; NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:fileName ofType:@"mp3"]; NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath]; player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil]; NSLog(@"acceleration.y = %+.6f greater", aceler.z); [player play]; } else { [player stop]; }; } </code></pre>
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    1. USweaveoftheride
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      1. POHow do you make the iphone acceleromator trigger sound more effectively using avaudioplayer?
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      1. POHow do you make the iphone acceleromator trigger sound more effectively using avaudioplayer?
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      1. POHow do you make the iphone acceleromator trigger sound more effectively using avaudioplayer?
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    1. COI'm failing to see the real question inside here. It seems like you are asking "how to make this better"? Define better
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      1. POHow do you make the iphone acceleromator trigger sound more effectively using avaudioplayer?
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    2. COI would like to make the sound trigger like this: at zero tilt, there is no sound. As soon as you start to tilt, it plays the sound, depending which direction, depends which sound. I was thinking about connecting the amount of tilt to the speed at which the sound is re-triggered. Maybe I am better off using a dedicated audio engine for this.
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      1. POHow do you make the iphone acceleromator trigger sound more effectively using avaudioplayer?
      1. USweaveoftheride
    3. COby "speed of sound" are you talking about adjusting the audio playback rate? Or are you talking about adjust the delay in between playing a short clip like a beep? It is good you included your code, but please adjust your question so that more people can help you do exactly what you need to do.
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