Physics 437: acoustics

John Vanderkooy
PHY 354 ext. 2223

Stanley Lipshitz
MC 5196 ext. 3755

Measurements in acoustic systems

A study of loudspeaker and room measurement techniques including dual-channel Fourier techniques and maximum-length sequence methods. Specific projects concern the measurement of the energy response of a loudspeaker, i.e. its integrated output in the full 4p steradian solid angle, the study of reverberation and other acoustic parameters of a room, the diffraction of a loudspeaker cabinet, and design and construction of specific loudspeakers or other acoustic devices.

Digital signal processing for audio

Projects include:

• implementation and study of crossover networks
• equalization of the axial response
• adaptive algorithms for various purposes such as active noise cancellation
• fractals and chaos in audio signals
• investigation of 1-bit coders
• investigations of binaural and multi-channel systems