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Article View: borland.public.cppbuilder.multimedia
Article #780

Re: detecting activity on LineIn

#780
From: Andrei
Date: Wed, 24 Jul 2002 11:46
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Good stuff, thank you. I have been trying to write my own spectral view
using FFT code that I have.
I also got assembly code from the book called Digital Audio Processing. This
is supposed to be ultra-fast, however the author threw in some VC++ specific
stuff so I was not able to figure it out and get it to work. If you want to
take a look at that, please e-mail me at the address below.

My understanding is that for speed applications and non-precision work, FFT
should you use as few "features" as possible. For example, do I need to use
windowing functions for an FFT in order to write a functioning spectral
view?

I was actually able to  get FFT code that I have to convolute a signal and
then get it back but in places where original signal was near 0 dB I got
clicks in deconvoluted result. Why is that?

Sorry that I am bothering you with this stuff, people who know it are really
hard to find :)

-- 
Andrei
REMOVE_sezna2000@yahoo.com
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Newsgroups: borland.public.cppbuilder.multimedia
Subject: Re: detecting activity on LineIn
From: "Andrei" <address@in.the.sig>
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Date: Wed, 24 Jul 2002 11:46:17 GMT
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