ASA 129th Meeting - Washington, DC - 1995 May 30 .. Jun 06

2pED9. Reverberant sound in one-, two-, and three-dimensional spaces.

William J. Strong

David C. Copley

Dept. of Phys. and Astron., Brigham Young Univ., Provo, UT 84602

The method of images was used to calculate impulse responses for a large (30 mx23 mx18 m) three-dimensional space, a large (30 mx23 m) two-dimensional space, and a large (30 m) one-dimensional space. The reverberation time for these spaces was set to approximately 1.5 s and all sound absorption took place at the walls. Similar impulse responses were calculated for small rooms whose dimensions were one-tenth those of the large rooms and whose reverberation times were smaller. A short (10-s) sample of singing was recorded in an anechoic chamber and then convolved with the various impulse responses. The resulting six reverberated samples of singing were recorded binaurally on audio tape. Graphs of the impulse responses and the taped examples will be presented. (Although the taped examples will be presented via loudspeakers, they are best heard via earphones.)