 | American Academy of Arts and Sciences - 1907 - 1010 páginas
...sometimes called, mistakenly as has been explained, resonance. The reverberation may be expressed by the duration of audibility of the residual sound after the cessation of a source so adjusted as to produce an average of sound of some standard intensity over the whole room.... | |
 | Wallace Clement Sabine - 1922 - 304 páginas
...overload the room, were found insufficient even with the presence in this case of seven gentlemen. Three more cushions were brought in and the result...quiet one, the noises from the street and railway traffic were seriously disturbing. Late the following night the conditions were more favorable, and... | |
 | Wallace Clement Sabine - 1922 - 302 páginas
...crosses what the experimental psychologist calls the "threshold of audibility." In the Greek theatres the duration of audibility of the residual sound after the cessation of a source of ordinary loudness was never more than a few tenths of a second; in a modern theatre it may... | |
 | 1907 - 876 páginas
...sometimes called, mistakenly as has been explained, resonance. The reverberation may be expressed by the duration of audibility of the residual sound after the cessation of a source so adjusted as to produce an average of sound of some standard intensity over the whole room.... | |
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... absorption by the walls and contained material, or it may be regarded as a process of rapid reflection from wall to wall with loss at each reflection. In either case it is called reverberation. It is sometimes called, mistakenly as has been explained,... 