Faculty Advisor
Clancy, Edward A.
Faculty Advisor
Heineman, George T
Center
MIT Lincoln Laboratory
Sponsor
MIT Lincoln Laboratory
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
Copyright Statement
All authors have granted to WPI a nonexclusive royalty-free license to distribute copies of the work, subject to other agreements. Copyright is held by the author or authors, with all rights reserved, unless otherwise noted.
Accessibility
Unrestricted
Advisor Department
Electrical and Computer Engineering
Advisor Department
Computer Science