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Advanced Filters in Reaktor Core

Here come the solutions for Vadim's DSP Tutorials

(35 Votes)
2.0 (Updated 10 years ago)
July 10, 2008
Reaktor 5 or lower


Vadim has decided to release the Core structures that he created for the tutorials accompanying his DSP articles on the NI Wesite.

1) "Preserving the LTI system topology in s- to z-plane transforms"

2) "Frequency-scaling of discrete-time LTI system responses"

3) "Computational optimization of nonlinear zero-delay feedback by second-order piecewise approximation"

The three ensembles allow to directly try out the improvements archieved by the described methods.

In a nutshell: it's a way to get high-quality filters without oversampling.

For the third article we have added a mp3 audio demo. It showcases the behaviour of four types of filters running at 44.1 Khz samplerate.

0:00 min: Ladder
1:35 min: State Variable LP2
2:40 min: State Variable BP2
3:50 min: State Variable HP2


Ma. P.
9 years ago
That is very impressive sounding digital filter..
josh hinden
10 years ago
any idea why the low end drops out as you increase the res on the self-oscillating filter? i'd like to know why that happens with many lpf's. thanks!
11 years ago
yes - very impressive - many thanks to Vadim!
josh hinden
11 years ago
they do sound great. thank you!!!
Lucas Owens
11 years ago
These sound great, thank you!
the Borg
11 years ago
nice one stephan ,thanks for your work with reaktor its the best,especially the new dsp work with vadim look how far we come from back in the day WOW reaktor is the product of pure genius!
John Kammeyer-Mueller
11 years ago
I fear that I can't quite follow the papers Vadim posted yet (I'm not DSP saavy at all), but I can appreciate this treatment of Reaktor as a "basic research" tool for development of new instruments. Thanks much for keeping Reaktor on the cutting edge where it belongs.
GG.G SakabeaT
11 years ago
whoo !whoo !whoo !