MATRIXSYNTH: System 55 - Emulating a Voltage Controlled Filter


Friday, December 15, 2023

System 55 - Emulating a Voltage Controlled Filter


video upload by O.Z. Hall

"The System 55 contains only a single 904A Voltage Controlled Lowpass Filter. So, what do you do to create a second voice? This video examines 4 possible options. In the course of the discussion we create a Flutelike voice and a Clarinetlike voice.
Can you think of any other options than the four I mention?

TIMECODE

0:00 intro
0:28 -options for voice w/o lowpass VCF
1:11 - preparing to emulate a lowpass filter
1:32 - basic keyboard control connections
1:58 - filterless Recorder voice patch
2:57 - play the Recorder patch
3:13 - emulating resonance
4:27 -play and adjust resonance
4:56 - emulated lowpass filter patch
6:27 - play Clarinet patch and adjust 'cutoff' frequency
8:07 - conclusion
8:34 - closing jam"

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