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Sunday, May 27th, 2018 08:40 am

Synth Glossary

Aftertouch:
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....

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SH-101
The Roland SH-101 is a monophonic synthesizer, featuring a 2 1/2 octave 32-note (F-C) keyboard in a light, plastic case. It was designed as a strap-on synth with an optional modulation attachment that stuck out like a guitar neck. It can run on batteries and it came in a number of exciting colors. The SH101 was pre-MIDI, but it has CV (1 volt/octave cv) and gate inputs in the back. It features one VCO with separate levels for each waveform, saw, square, pulse, Pulse Width Modulation (PWM), and suboscillator. PWM can be set at one level or can be controlled by the EG or the LFO. The VCF is self-oscillating (resonant) and can be modulated by the envelope generator, the LFO and the keyboard (keyboard tracking). The Envelope Generator (EG) is ADSR and can be triggered by the gate or the LFO. The LFO can be set on triangle, square, random (sample-and-hold), and noise. The VCA can be controlled by the EG or the Gate. The SH-101 also features a very primitive arpeggiator and sequencer as well as portamento.

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