How to calculate the frequency of an audio pitch,such as International standard pitch = 440Hz . I try to use Visualizer to get the frequency , but I don't understand the means of the method getFft(); it got the byte[] data,and I don't know what means of the data is. How can I use getFft() to calculate the frequency.
I mean, I play a media(eg.International standard pitch = 440Hz),and I want to the calculate frequency by Visualizer (440Hz), how should I do?
please help me!
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Rajendra arora
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What have you done so far? With what step do you need help? – hotpaw2 Feb 14 '14 at 22:26
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thx for your comment,here is china,maybe you'r sleeping right now, I show you my code , i'm looking forward to your reply – user3308684 Feb 15 '14 at 08:18
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why I cant post my code ... – user3308684 Feb 15 '14 at 10:48
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Your post appears to contain code that is not properly formatted as code. Please indent all code by 4 spaces using the code toolbar button or the CTRL+K keyboard shortcut. For more editing help, click the [?] toolbar icon. – user3308684 Feb 15 '14 at 10:50