Engine Sound Design Applying Active Sound Control

- Acoustic Timbre and Image Localization Design Based on Motion and Source Perception of Vehicles -

Abstract

In the point of view of the vehicle motion perception and the source perception of an engine，the acceleration feeling and exhaust notes etc.， for example，the waveform design for the suitable timbre was developed by using of the DSP technology．This synthesizing processes were based on the sine wave composition method and the frequency filter these parameters were controlled temporally．For the appropriate sound image localization of sources，the positions where the electro-acoustic transducers should be located in a vehicle cabin were optimized individually．Thereby the distinct moving sound image synchronizing the engine revolution was accomplished．This technology was adapted for a new sports car with a V8 gasoline engine to fuse its original engine sound．