Fair enough, but also bear in mind that direct forms, typically implicitly assumed by transfer function-based DSP texts, are more prone to quantization issues than a TPT SVF, so one might still want to apply the latter (no matter how you arrive at the transfer function itself).
Regards, Vadim On Thu, Nov 30, 2023 at 7:27 AM Nigel Redmon <[email protected]> wrote: > It’s a good source, but bear in mind that it doesn’t get you new kinds of > basic filters, and its strength is in designs that give you good behavior > while time-varying the parameters. In other words, it’s more important for > synth filters with frequency controlled by envelope generators than for > static filters for EQ. But a second-order Butterworth lowpass filter is > still a second-order Butterworth lowpass filter, whether you get it from > Robert’s cookbook formulas or a “VA” design. > > > On Nov 29, 2023, at 3:07 PM, Jens Johansson <[email protected]> wrote: > > One document I stumbled upon while googling is "The art of VA filter > design", by Vadim Zavalishin (it's apparently a book he published for > free). If I can even wrap my head around some of that stuff, might it be a > recommended good place to start I wonder? > > Cheers, > J > > -- Vadim Zavalishin Reaktor Application Architect | R&D Native Instruments GmbH +49-30-611035-0 www.native-instruments.com
