Determining when a sound above a certain frequency is played on iPhone

Posted by eagle on Stack Overflow See other posts from Stack Overflow or by eagle
Published on 2010-05-27T13:49:05Z Indexed on 2010/05/27 13:51 UTC
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iphone-sdk

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audio

I'm wondering what's the easiest/best way to determine if a sound, being recorded on the iPhone mic, is above a certain frequency.

My guess is that I would need to use the Audio Queue Services since I don't need to record the audio to a file.

I'm using SDK 4.0, so I can use the FFT functions in the Accelerate framework if needed.

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