Title

Directional speech acquisition using a MEMS cubic acoustical sensor microarray cluster.

Date of Award

2006

Degree Type

Thesis

Degree Name

M.A.Sc.

Department

Electrical and Computer Engineering

Keywords

Engineering, Electronics and Electrical.

Rights

CC BY-NC-ND 4.0

Abstract

This thesis presents the design of a directional speech acquisition system using a MEMS cubic acoustical sensor microarray cluster to improve speech intelligibility in a noisy reverberant acoustical environment. In the proposed system, five identical acoustical sensor arrays constitute the five sides of a cubic geometry whereas the other side of the cube is to be used for interconnection and packaging purposes. Each of the sensor microarrays is associated with two beam shapes: a main beam to acquire speech signal from a particular direction and a scanning beam to locate and track a potential speech source. A microelectronics based beam synthesis engine controls the selection of a main beam to acquire speech signals from a particular direction based on the output level of the five scanning beams. In this way the developed system provides an improved reduced noise dynamic directional speech acquisition system covering a 3-D space. (Abstract shortened by UMI.)Dept. of Electrical and Computer Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2006 .H8. Source: Masters Abstracts International, Volume: 45-01, page: 0411. Thesis (M.A.Sc.)--University of Windsor (Canada), 2006.