Pi-MS-20

Experimentations and tooling into driving Korg MS-20 Semi-modular synth with Raspberry Pi GPIO using minimal additional components

Outline

Control Voltages

• You'd need a DAC to generate control voltages using RPi GPIO.

Pulse Width Modulation (PWM)

• Raspberry PI Hardware-based PWM's 0-3v3 can be used standalone as:

  • External Signal Source
  • LFO

• In conjunction with the MS20's external signal processor (ESP) F-C Converter Patch connector to output control voltages

Next Steps

• PWM improvements - easing, interesting sounds, better control, "one shot" sounds.
• frameworkize
• keyboard control
• midi notes to pwm frequency?

Reference

https://github.com/Pioreactor/rpi_hardware_pwm