RE: [linux-audio-dev] Still I cannot understand why...

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Subject: RE: [linux-audio-dev] Still I cannot understand why...
From: Stuart Allie (Stuart.Allie_AT_hydro.com.au)
Date: Thu Dec 20 2001 - 02:47:37 EET

Hi All,

Just curious, but could somebody explain *how* delay lines can be used
implement EQ? I have a strong maths background, but no DSP experience if
that helps.

Stuart

> -----Original Message-----
> From: Paul Davis [mailto:pbd_AT_op.net]
> Sent: Thursday, 20 December 2001 8:51 am
> To: linux-audio-dev_AT_music.columbia.edu
> Subject: Re: [linux-audio-dev] Still I cannot understand why...
>
>
> >Only latency sensitive program I made is rtEq where biggest
> latency source
> >is FFT size (usually 75% overlap and 8192 point FFT).
>
> i don't believe its common practice to use FFT for real time EQ. its
> perfectly possible to use delay lines to accomplish high quality EQ
> with much lower latency than FFT. thats certainly what 90%+ of all
> VST/DirectX EQ plugins use (there was a discussion about this on
> vst-plugins recently)
>
> --p
>

--------------------------------------
Dr Stuart Allie
Technical Programmer
Resource Analysis Group
Consulting Division
Hydro Electric Corporation
4 Elizabeth St, Hobart, Tasmania, 7004
Ph (03) 6230 5760
Fax (03) 6230 5363
Email : stuart.allie_AT_hydro.com.au
--------------------------------------
 

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