From: Jason Wilfred Woodford <jwoodfd@kelvin.physics.mun.ca>
To: linux-sound@vger.kernel.org
Subject: Re: equalizer application in software?
Date: Sun, 29 Nov 1998 18:13:49 +0000 [thread overview]
Message-ID: <marc-linux-sound-91237460010100@msgid-missing> (raw)
In-Reply-To: <marc-linux-sound-91233787226861@msgid-missing>
On Sat, 28 Nov 1998, Derrick J Brashear wrote:
> I don't suppose anyone's done an equalizer application in software, e.g.
> not a controller for a hardware equalizer as in an AWE? Presumably this
> would be something between the audio source and the audio device, or a
> library which could be used by applications desirous of such
> functionality.
>
> (I assume no such application exists)
>
> -D
>
>
>
Hummm..... lemme think.
I know there is a program available somewhere to do a FFT (Fast Fourier
Transform) on a live real-time audio input. Perhaps if you take the
frequency spectrum from the FFT ( it looks like a really high definition
equalizer spectrum...... cool to watch), increase or decrease the
intensity of the frequency components according to your equalizer's band
settings, then recombine the components (a sort of reverse FFT), then you
get the original waveform, except it has been equalized.
What do we think??
Sounds like project..... Where is the prog. to do the FFT? On sunsite?
Feedback appreciated.
-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-/|\-
Jason Woodford Faculty of Education
Home: 579-2079 Office: 749-7503 Memorial University of Newfoundland
jwoodfd@kelvin.physics.mun.ca St. John's, NF, CANADA
====================================
next prev parent reply other threads:[~1998-11-29 18:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-11-29 2:34 equalizer application in software? Derrick J Brashear
1998-11-29 13:32 ` Kadinger Andras
1998-11-29 18:13 ` Jason Wilfred Woodford [this message]
1998-11-29 19:07 ` Derrick J Brashear
1998-11-30 16:17 ` Eric B. Mitchell
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