comp.lang.idl-pvwave archive: archive » Re: Sonograms in IDL?

Home » Public Forums » archive » Re: Sonograms in IDL?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

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

--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Ben Panter, Garching, Germany
email via www.benpanter.co.uk

Report message to a moderator

[Message index]

		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

Previous Topic:	Re: Support for getting HTTP/FTP clients into IDL
Next Topic:	Re: connecting to a server to retrieve data (optimizing)

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Nov 30 09:55:26 PST 2025

Total time taken to generate the page: 0.08275 seconds