linuxaudio.org

On Wed, 2010-09-29 at 15:50 +0200, fons@kokkinizita.net wrote:

quoted text
> On Wed, Sep 29, 2010 at 06:11:36AM -0700, Patrick Shirkey wrote:

>

> > Otherwise in the interests of keeping a relatively convivial tone I would

> > like to thank you for spotting the flaws that you have found.

>

> Here's one more:

>

>

>

> This the frequency response (no EQ or whatever) using the IIR crossover,

> set to 500 Hz and 3 kHz. Those 'qualitatively more experienced DSP

> engineers' don't apparently have the experience to perform even the

> simplest of tests. Nor do they know that the type of filter used will

> produce antiphase signals at the crossover frequency.

>

> (Hint: invert the mid band).

> 

    Damn, I just noticed that you said IIR crossover - Steve recommended

against using the IIR crossover for serious work.  In fact, it says that

in the tooltip in Edit->Preferences.  I think he knew it wasn't optimal

when he threw it together.  If you know how to fix that it would be

great.
Jan
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