Helmholtz resonance effect, i.e. using, exciting or emulating air resonance in a cavity

Full Title

Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments > Musical effects > Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays > Sympathetic resonance, i.e. adding harmonics simulating sympathetic resonance from other strings > Helmholtz resonance effect, i.e. using, exciting or emulating air resonance in a cavity