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Any process that encourages a person to listen more discriminately, particularly to sounds of the environment. The term was originally used by R.M. Schafer in his book Ear Cleaning (Toronto, BMI Canada, 1967) to contrast with the traditional practice of ear training in music education which concentrates on the identification and reproduction of intervals, chords, melodies and so on.
A TONE having more than a single FREQUENCY component. For instance, a tone consisting of a FUNDAMENTAL and OVERTONEs or HARMONICs, may be said to be complex.
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° destructive interference results, producing diminished loudness. When they move back into phase, constructive interference will produce increased loudness. Thus, beats are a form of AMPLITUDE MODULATION. As two frequencies are brought closer together, the beats will gradually slow down and disappear when they become identical.
Producing or characterized by rich or full sound, as implied by SONORITY or soniferous. Similar, but archaic, terms include: sonorific, sonoriferous, sonification, sonance, sonation.