[LAU] jamin (was: Albums under a label recorded and/or mixed with Linux)

Jan Depner eviltwin69 at cableone.net
Wed Sep 29 17:19:09 UTC 2010


On Wed, 2010-09-29 at 15:50 +0200, fons at kokkinizita.net wrote:
> 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:
> 
> <http://www.kokkinizita.net/linuxaudio/jamin-iir-xover.png>
> 
> 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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