Mark P. Lowney (CPE), Abner C. Barros (ELE) - Team Leader, Alexander Andrade (ELE), Nicholas M. Beckwith (ELE)
Dr. Karen L. Payton
The Acoustic Ruler Project is an implementation of three closely-related custom-build devices and a Control Application. The system's main purpose is to measure the propagation time of an audio signal between loudspeakers and microphones, thus utilizing the recorded data to calculate separation distances between them.
The three devices consist of a Stand-alone Single-channel system, a Stand-alone Two-channel system and a "Teamable" system to create an array of microphones and loudspeakers. The Control Application allows the user to trigger measurements and edit the value of the speed of sound based on certain environmental parameters such as the ambient temperature. In addition, it also displays and logs the measurement results to a text file, alongside relevant information in regards to each system such as the system identification number.
Dr. Richard Goldhor, Speech Technology and Applied Research, Inc. (STAR)