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Saturday, February 16th, 2019 01:39 pm

Synth Glossary

An envelope generator generates a signal that changes through the length of a sound, normally to control the loudness of that sound. An example of its use is to control the volume of a piano sound. It creates a signal that goes from low to high very quickly (the loud bit when the key is pressed), then goes down slowly as the sounds gets quieter. They are also used to drive other parts of the synthesizer, for example the filter....


The cs15 is a beaut of a little (3 octave keyboard) monosynth and is set up in 2 parallel audio paths. The are 1 lfo (sine, ramp down, non-triggerable s/h), 2 VCOs, 2 VCFs, 2 egs (adsrs) and 2 VCAs. The first audio path starts with VCO1 (triangle, ramp down, and square, 64'-2', lfo mod, pw% 50-90, and pwm) and goes through a mixer module which is mixed with a noise source, either internal (white) or external. It is then ran through the VCF which can either be a LP, BP, or HP. It is a resonant filter, but does not go into sharp self oscillation. The filter can be modulated by the LFO or a EG (eg1+, EG1-, EG2+) and these modulation amounts are controllable. From the filter it goes in the AMP which

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