Morphor Plectrum: Demo and tutorial of analog Karplus-Strong module

video upload by CatSynth TV

"We explore the Plectrum module from Belgium-based Morphor, and demonstrate all of its features. The Plectrum is an all-analog implementation of the Karplus-Strong algorithm for plucked string sounds. It uses a BBD 'bucket bridge' delay, and a one-pole low-pass filter to create the algorithm's all-important feedback loop. In this demo, we introduce the algorithm and show how the different knobs and CV sources affect aspects of the sound. We also try out the advanced 'loop extender' feature that allows us to add other modules into the feedback loop of the Karplus-Strong system.

00:00 Introduction
00:14 The Karplus-Strong plucked string algorithm
01:02 Overview of the Morphor Plectrum
01:59 Basic functions and controls (feedback, color, pitch)
04:45 Using different trigger signals and noise bursts
05:59 CV input options
08:55 Loop Extender with Rossum Electro-Music Morpheus Z-plane filter
10:48 Loop Extender with Metasonix R54 Supermodule VCO/VCF
12:36 Demo with Make Noise Rene driving the Plectrum
14:01 Conclusion

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