Reverberant sound in one‐, two‐, and three‐dimensional spaces

Abstract

The method of images was used to calculate impulse responses for a large (30 m×23 m×18 m) three‐dimensional space, a large (30 m×23 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.)