Faculty Advisor

Clancy, Edward A.

Faculty Advisor

Heineman, George T

Center

MIT Lincoln Laboratory-Lexington, Massachusetts

Abstract

Acoustic localization is a method to determine the position of a sound source via an array of acoustic sensors. In an earlier project, entitled Acoustic Localization for Mobile Open-Source Network Deployment (ALMOND), an attempt was made to develop a system for acoustic localization using cell phones as acoustic sensors. A pressing obstacle in the ALMOND project was the ability to determine the time at which audio samples were recorded from a phone's microphone. This project reduced the error in determining when individual timestamps were recorded by modifying techniques of retrieving timestamps and filtering the results. Using these methods, differences between successive timestamps always fell within 3 milliseconds of expected values and fell within 1 millisecond 99 percent of the time.

Publisher

Worcester Polytechnic Institute

Date Accepted

December 2009

Major

Computer Science

Major

Electrical and Computer Engineering

Project Type

Major Qualifying Project

Accessibility

Unrestricted

Advisor Department

Electrical and Computer Engineering

Advisor Department

Computer Science

Project Center

MIT Lincoln Laboratory-Lexington, Massachusetts

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