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FFT on an audio track (Real Studio network user group Mailinglist archive)

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RE: Timezone Difference Question   -   Michael Raycraft
  FFT on an audio track   -   Wright, Tim
    Re: FFT on an audio track   -   Frank Bitterlich
   SMTP with attachments ?   -   Ian Mantripp

FFT on an audio track
Date: 28.08.02 16:02 (Wed, 28 Aug 2002 16:02:34 +0100)
From: Wright, Tim
Hi all,

I want to be able to read in an audio track and run FFT on it. The FFT side is no problem, but I can't see how to get access to the "raw data" of an audio track - any tips?

Alternatively, if there's a prewritten class / plugin which does FFT on audio, that would probably save me a bit of time! :)

Cheers,

Tim.

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Re: FFT on an audio track
Date: 28.08.02 16:22 (Wed, 28 Aug 2002 17:22:42 +0200)
From: Frank Bitterlich
While I still don't know what a Fast Fourier Transform <sp?> (FFT)
really is, I do remember that someone has announced a plugin for FFT
quite a while ago. Check the MWRB pages and/or the list archives.

A for the audio data - are we talking about a Macintosh Sound file,
AIFF, or similar? Couldn't you just open the file as a binary stream?

Cheers,
Frank+++

"Wright, Tim" wrote:
>
> Hi all,
>
> I want to be able to read in an audio track and run FFT on it. The FFT side is no problem, but I can't see how to get access to the "raw data" of an audio track - any tips?
>
> Alternatively, if there's a prewritten class / plugin which does FFT on audio, that would probably save me a bit of time! :)