ASA 127th Meeting M.I.T. 1994 June 6-10

3aSAa7. Digital revolution in acoustic signal processing.

Afarin O. Bellisario

Analog Devices, Inc., 3 Technology Way, Norwood, MA 02062

Numerical modeling of the acoustic behavior of physical systems, using general purpose computers, has been used as a research tool since the 1970s. However, the availability of specially optimized processors for digital signal processing has enabled the replacement of many bulky electrical or mechanical components with compact IC circuits in various real-world and research applications. The programmability of these processors even allow for ``shrink wrap'' algorithms to be available for running on standard DSP platforms. This paper focuses on the general attributes of today's generation of DSP's, some of their real-world applications in replacing mechanical/electrical elements in noise/vibration control, music synthesis, the generation of music hall effects in homes, and echo cancellation in recording studios, and the influence of DSP's on acoustics/vibration research in the future.