Analogue synthesizers

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An analogue (or analog) synthesizer is a synthesizer that uses analogue circuits and analogue signals to generate sound electronically.

Electronic oscillators

  • Voltage-controlled oscillator (VCO)
  • Low-frequency oscillation (LFO)
  • Numerically-controlled oscillator (NCO)
  • Variable-frequency oscillator (VFO)
  • Variable-gain amplifier
  • Voltage-controlled filter (VCF)
  • Modular synthesizer


high voltage over time
short voltage spike
Pitch CV
variable CV to control 1 volt/octave oscillators


  • CV/gate — (an abbreviation of control voltage/gate) is an analogue method of controlling synthesizers, drum machines, and similar equipment with external sequencers. The control voltage typically controls pitch and the gate signal controls note on-off.
  • Digital audio workstation (DAW) is an electronic device or application software used for recording, editing and producing audio files.