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Saturday, January 16th, 2021 06:58 pm

Synth Glossary

A means of generating a control signal based on how much pressure is applied to the keys of a MIDI keyboard. Most instruments that support this do not have independent pressure sensing for all keys, but rather detect the overall pressure by means of a sensing strip running beneath the keys. Aftertouch may be used to control such functions as vibrato depth, filter brightness, loudness and so on....


Very early VCS3 (pre-Putney), note Oscillator 1 The original portable synthesizer introduced in 1969 had a solid Aformosia cabinet which housed the following modules interconnected by means of a matrix patchboard.

3 x Voltage Controlled Oscillators.
Noise Generator.
2 x Input Amplifiers.
Ring Modulator.
Voltage Controlled Low Pass Filter.
Trapezoid Envelope Generator.
Voltage Controlled Reverberation.
2 x Stereo Output Amplifiers.

The VCS3 had:3 Voltage Controlled Oscillators, a Noise Generator, 2 Input Amplifiers, 1 Ring Modulator,1 Voltage Controlled Low Pass Filter,1 Trapezoid Envelope Generator, a Voltage Controlled Reverberation unit, 2 Stereo Output Amplifiers and a Joystick. Routing the various functions of the instrument was done via a small pin patchboard.

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