Eavesdropping on conversations is difficult due to the attenuation of acoustic waves over long distances. By using surfaces close to an acoustic source as the microphone and detecting changes in those surfaces from a distance, speech can be reproduced accurately. If a reflective surface such as a window were utilized in this manner then a laser and photodetector can be used to measure changes due to acoustic pressure. Our device is intended to detect an audio signal using a laser.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Manelski, Kevin E
• Brenneman, Cody Robert

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-042507-082349

Advisor

• McNeill, John A.

Year

• 2007

Sponsor

• NECAMSID

Date created

• 2007-04-25

Resource type

• Major Qualifying Project

Major

• Electrical & Computer Engineering

Rights statement

• In Copyright

Last modified

• 2021-01-07