Rotary
Capturing the swirl of a Leslie speaker, in hardware and in software.
Two teams, one sound. I built the simulation in Max/MSP: a crossover that splits horn from drum, a Doppler delay offset 90 degrees between the ears, and amplitude modulation that follows the rotating horn.
The highs. As it swings towards you the pitch rises, then falls away.
The motor and drum that spin the sound.
- Brief
- Shrink a venue-sized Leslie into a desktop prototype, and understand every parameter through simulation.
- Role
- Built the Max/MSP simulation: crossover, Doppler delay, amplitude modulation and the plug-in interface.
- Outcome
- A working plug-in, compared side by side with the hardware build.
- 01
Split
A crossover sends lows to the drum and highs to the horn.
- 02
Delay
A Doppler delay per ear, offset by 90 degrees.
- 03
Shape
Amplitude follows the horn as it turns away and back.
- 04
Compare
Simulation and hardware, side by side.
