Chapter 5: Signal Generators | VCO and LFO
⚛ Voltage Controlled Oscillator and Low Frequency Oscillator
⚛ Additional Information
⚛ The following is a transcript of the narration:
✸ Signal Generators: VCO and LFO
✸ A VCO is a Voltage Controlled Oscillator.
✸ The oscillator, in it's simplest form, generates periodically repeating waveform of user defined frequency and user selectable shapes.
✸ This gives the audio the sensation of a single note.
✸ LFO normally oscillates at frequencies well below the audio range.
Patch 1 VCO
⚛ The following is a transcript of the narration:
✸ Patch One VCO
✸ Connect triangle wave output to VCA audio input.
✸ Open signal in and gain.
✸ Turn tune knob and octave switch to hear the range of frequencies.
✸ Put the signal in down and change the waveform.
✸ Pulse width has an individual modulation input and width control knob.
✸ Pay attention to difference in timbre, pitch and sound character.
Patch 2 VCO
⚛ The following is a transcript of the narration:
✸ Patch Two VCO
✸ Connect triangle wave output to VCA audio input.
✸ Switch VCO 1 to LFO mode and connect output to exponential frequency modulation input on VCO 2.
✸ Open signal in and Gain.
✸ Set tune knob on 5.
✸ Open exponential frequency modulation knob and you will hear LFO modulating the waveform..
✸ Turn tune on VCO 1 higher to speed LFO rate.
✸ This method creates laser type sounds and unusual backgrounds.
Bonus Patch
⚛ The following is a transcript of the narration:
✸ Bonus Patch
✸ Connect triangle wave output to VCA audio input.
✸ Open signal in and gain
✸ Switch VCO 1 to LFO mode and connect output to 1 V / Oct input on VCO 2.
✸ Play with frequency range on both VCOs to adjust the tone and character.
⚛ Music in the chapter video: Dusha - Sad Bones