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More subtly, the split between the original sound and its electroacoustic reproduction, which has been termed SCHIZOPHONIA, changes the way in which the sound will be heard by the listener. Sounds may appear in unusual or inappropriate settings (e.g. orchestral music in elevators) and may thereby contribute to SOUND POLLUTION; sounds may be exact repetitions more often than they are unique occurrences; sounds may occur at intensities, durations, densities and speeds never before experienced, as well as in succession or simultaneity with other sounds to an arbitrary degree of complexity. All of these new possibilities can change a listener's habits or modes of listening, particularly through frequent exposure; some changes may dull, others stimulate, listening attitudes and abilities.

Handbook for Acoustic Ecology