[PD-announce] Re: pulqui bump version

Roman Haefeli <[email protected]> Tue, 28 Jan 2025 11:19:30 +0100

Newsgroups	gmane.comp.multimedia.puredata.general
Message-ID	<3fa3fc86fae829503ff651d0a651e29760ed07af.camel__48043.274581299$1738059598$gmane$org@gmail.com>

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Hey Lucas

Thanks for sharing.

On Tue, 2025-01-28 at 05:29 -0300, Lucas Cordiviola wrote:

> version 0.4.0 adds 2 new objects:
> 
> - [pqcrossover~]
> 
>    - 4th order Linkwitz-Riley filters to be able to do multi-band 
> limiting (or other processing)

I'm interested to know why this filter is suitable for multi-band dynamic processing? I once created a 4-band multi-band compressor for netpd¹ and I used iemlib butterworth filters for the crossover. I haven't read much about crossover design and just tuned the band bounds by ear, so that the overall frequency response sounded more or less even to my ears (very naive approach, but I liked the result). Once I found a vanilla butterworth implementation, I tried to replace the iemlib filters, but I wasn't able to make it sound "even", so I gave up.

Can I just chain many [pqcrossover~] objects for separating more than two bands?

Thanks, Roman

¹[http://netpd.org/instruments/dynlib/](http://netpd.org/instruments/dynlib/) (r4mbc)

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