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|Friday, 20 November 2009 00:00|
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If two TONEs are about 15 Hertz or less apart, INTERFERENCE will result from their similar though not exactly identical frequencies. Gradually they will move out of PHASE until at 180
Reverberation is a result of multiple REFLECTIONs. A SOUND WAVE in an enclosed or semi-enclosed environment will be broken up as it is bounced back and forth among the reflecting surfaces. Reverberation is, in effect, a multiplicity of ECHOes whose speed of repetition is too quick for them to be perceived as separate from one another. W.C. Sabine established the official period of reverberation as the time required by a sound in a space to decrease to one-millionth of its original strength.
In the perception of ACOUSTIC SPACE, projicience refers to the sense of depth of a sound in the space.
A garden, and by analogy, any place of acoustic delights. This may be a natural soundscape, or one created according to the methods of SOUNDSCAPE DESIGN. The soniferous garden may also include as one of its principal attractions a Temple of Silence for meditation.