What it changes in the music
An audio oscillator gives a patch its starting signal. Its frequency relates to pitch, while waveform shape influences harmonic content. Multiple oscillators can be tuned together, separated by intervals or detuned slightly. Their combination is then shaped by envelopes, filters and other stages. A useful sound does not require the maximum number of oscillators available.
A small experiment
Hold one note while comparing two oscillator shapes through the same envelope. Match their apparent levels and describe the difference before adding effects.
Keep this distinction clear
An oscillator is a source, while an envelope or LFO often supplies a control signal. A modulation source may change an oscillator without being heard directly.
Related sound terms
Technical background
- Ableton Learning Synths — Interactive synthesis fundamentals.
- MDN: OscillatorNode — Waveform and oscillator behavior in Web Audio.
51ROUSI Editorial · · Editorial policy · Report an unclear definition