Electromagnetically Actuated Acoustic Amplitude Modulation Synthesis

Chang, Herbert H.C. and Topel, Spencer

Proceedings of the International Conference on New Interfaces for Musical Expression

This paper discusses a new approach to acoustic amplitude modulation. Building on prior work with electromagnetic augmentation of acoustic instruments, we begin with a theory of operation model to describe the mechanical forces necessary to produce acoustic amplitude modulation synthesis. We then propose an implementation of our model as an instrumental prototype. The results illustrate that our acoustic amplitude modulation system produces controllable sideband components, and that synthesis generated from our corresponding numerical dynamic system model closely approximates the acoustic result of the physical system.