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Re: Sonograms in IDL? [message #41808]

Fri, 26 November 2004 04:34

Ben Panter
Messages: 102
Registered: July 2003

Senior Member

Christopher Lee wrote:
>
> As for cautions, be wary of memory usage, if you want
> high time and frequency resolution, you'll need a big chunk of memory.
>
> (wavelet analysis would do the same as a sonogram, but wavelets use
> even more memory, combining this with even a small audio sample does
> wonders for stress testing your machine :)

Yeup - the first thing I tried was a straight FFT of the datavector. I
hadn't realised a little wave file could contain so many numbers!

I'll see what I can do with the windowing functions - cheers.

Ben

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		Re: Sonograms in IDL? By: Ben Panter on Fri, 26 November 2004 04:34
		Re: Sonograms in IDL? By: Chris Lee on Thu, 25 November 2004 11:20

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