The oscillator waveform animation effect

Presenter: Joseph Timoney, National University of Ireland - Maynooth

An enhancing effect that can be applied to analogue oscillators in subtractive synthesizers is termed Animation, which is an efficient way to create a sound of many closely detuned oscillators playing in unison. This is often referred to as a supersaw oscillator. In this seminar we will explain the operating principle of this effect in the digital domain using a combination of additive and frequency modulation synthesis. The Fourier series will be derived and results will be presented to demonstrate its accuracy. This will then provide new insights into how other more general waveform animation processors can be designed. Audio examples from the isolated supersaw waveform and also within some dance music excerpts will illustrate the sound possibilities using the technique.

When: October 21st, 2015

Where: CCSL Auditorium, IME/USP