Re: [linux-audio-dev] applying RIAA curves in software

From: fons adriaensen <fons.adriaensen@email-addr-hidden>
Date: Sat Oct 29 2005 - 17:41:28 EEST

On Sat, Oct 29, 2005 at 03:10:50PM +0300, Jussi Laako wrote:

> On Wed, 2005-10-26 at 02:41 +0200, fons adriaensen wrote:
>
> > Filter 1: F = 50 Hz, A = 9
> > Filter 2: F = 2120 Hz, A = 1
> >
> > and add the two outputs.
>
> >From quality point of view, at least I would recommend using IIR filters
> for this...

Could you explain ? The (trivially simple) first order lowpass sections
will have the correct amplitude _and_ phase response.

> Unless digital'ish sound is preferred... ;)

What the **** is "digital'ish" sound, and how is it relevant here ?

-- 
FA
Received on Sat Oct 29 20:15:06 2005

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