Equalizer - How to do?

Hi all,

I want to find a way to do the "Equalizer" (similar to equipment on audio
amplifier) using software (maybe C or others) on PC, should I use the filter
bank technique? Or can I simply use FFT and just change amplitude of
frequency components, then take inverse FFT? Is there open source or on-line
guide for implementing a equalizer?

Any suggestion are appreciated, thanks in advance!

Karmas

yer welcome ....

http://www.musicdsp.org/files/biquad.c
http://www.harmony-central.com/Computer/Programming/Audio-EQ-Cookbook.txt
http://www.harmony-central.com/Effects/Articles/Equalization/

sdj


Karmas Lin wrote:

> Hi all,
> 
> I want to find a way to do the "Equalizer" (similar to equipment on audio
> amplifier) using software (maybe C or others) on PC, should I use the filter
> bank technique? Or can I simply use FFT and just change amplitude of
> frequency components, then take inverse FFT? Is there open source or on-line
> guide for implementing a equalizer?
> 
> Any suggestion are appreciated, thanks in advance!
> 
> Karmas
> 
>