music beat detection in iphone

Question

please anyone know is there any sample code for beat detection iPhone?.How to implement fft algorithm in iphone to detect music beats?.I see in one forum that apple's sample code auriotouch doing the beat detection, is it correct?.

thanks

Beat detection is _much_ harder than you might think. – Alex Wayne Dec 23 '11 at 23:49 — Alex Wayne, Dec 23 '11 at 23:49

score 4 · Answer 1 · edited Dec 23 '11 at 23:53

4

Do you really want to do beat detection, or you just want to show output level? AVAudioPlayer has

- (float)peakPowerForChannel:(NSUInteger)channelNumber;

method which allows you to easily create output level meter by calling it periodically.

edited Dec 23 '11 at 23:53

Alex Wayne

178,991
47
309
337

answered Dec 23 '11 at 23:43

Nikita Ivaniushchenko

1,425
11
11

music beat detection in iphone

1 Answers1