Sound & Music

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Creating low pass filters help! Posted by GBNvK on 5 May 2005 at 2:43 PM
Heya all,

I am researching the theory behind low-pass filters, and I want to write a program that will take in a WAV file, allow me to change the low pass and stop pass elements and basically rewrite the WAV with these changes. I have looked on the net for help but I cant find any information that doesnt contain big algebraic equations.

Can anybody point me in a direction for a relative newby at audio programming ?

Thanks,

GBNvK
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Re: Creating low pass filters help! Posted by Gaashius on 6 May 2005 at 9:02 AM
: Heya all,
:
: I am researching the theory behind low-pass filters, and I want to write a program that will take in a WAV file, allow me to change the low pass and stop pass elements and basically rewrite the WAV with these changes. I have looked on the net for help but I cant find any information that doesnt contain big algebraic equations.
:
: Can anybody point me in a direction for a relative newby at audio programming ?
:
: Thanks,
:
: GBNvK
:
What language do you need to develop it in?

****************
Any questions? Just ask!

GAASHIUS


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Re: Creating low pass filters help! Posted by GBNvK on 6 May 2005 at 1:28 PM
: : Heya all,
: :
: : I am researching the theory behind low-pass filters, and I want to write a program that will take in a WAV file, allow me to change the low pass and stop pass elements and basically rewrite the WAV with these changes. I have looked on the net for help but I cant find any information that doesnt contain big algebraic equations.
: :
: : Can anybody point me in a direction for a relative newby at audio programming ?
: :
: : Thanks,
: :
: : GBNvK
: :
: What language do you need to develop it in?
:
: ****************
: Any questions? Just ask!
:
: GAASHIUS


Heya Gaashius...

I will be writing it in Blitzbasic as this offers extreme ease of use with speedy results :) Basically, if any code examples are forthcoming then I suppose it would be cool in some kinda psuedocode, but I can read C. :)

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Re: Creating low pass filters help! Posted by Gaashius on 17 May 2005 at 8:35 AM
: : : Heya all,
: : :
: : : I am researching the theory behind low-pass filters, and I want to write a program that will take in a WAV file, allow me to change the low pass and stop pass elements and basically rewrite the WAV with these changes. I have looked on the net for help but I cant find any information that doesnt contain big algebraic equations.
: : :
: : : Can anybody point me in a direction for a relative newby at audio programming ?
: : :
: : : Thanks,
: : :
: : : GBNvK
: : :
: : What language do you need to develop it in?
: :
: : ****************
: : Any questions? Just ask!
: :
: : GAASHIUS
:
:
: Heya Gaashius...
:
: I will be writing it in Blitzbasic as this offers extreme ease of use with speedy results :) Basically, if any code examples are forthcoming then I suppose it would be cool in some kinda psuedocode, but I can read C. :)
:
:
Well I leave this question to the others... since my english is terrible, I hear Blitzbasic first of here. Low pass and stop pass elements are somekind of first heard also - maybe I know what do you think, but I don't know what are them - since I teach everything myself(And usually in hungarian).

I'm afraid that a BASIC type language cannot hold such PL forms as C does, I mean here about built-in assembler, etc. I hope others can give you good answers. Or you could tell me what's that low pass and stop pass things - I could help maybe maybe...

****************
Any questions? Just ask!

GAASHIUS


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Re: Creating low pass filters help! Posted by mcmonkeys1 on 11 Aug 2005 at 8:19 AM
i'm assuming since you just want to write wav files, that your not concerned with speed (i.e. assembly inserts). Here's good site for
simple audio in ansi-type C++. Includes all sorts of useful tools.
check it out:

http://groovit.disjunkt.com/analog/time-domain/audio.html

-ros...



 

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