By Barry Truax
This ebook attracts upon many conventional disciplines that care for particular facets of sound, and provides fabric inside of an inter-disciplinary framework. It establishes a version for figuring out all acoustic and aural studies either of their conventional kinds and as they've been notably altered during this century via know-how.
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Extra info for Acoustic Communication (Communication, Culture, and Information Studies)
The power of long-term subconscious association can be tapped for commercial ends through frequent keynote-like repetition, as we shall see in part II. Listener Preferences and Attitudes The listening phenomena described thus far depend on specific types of relationships of the listener to the environment, and cannot be derived entirely from the sounds themselves. For instance, it would be very difficult for an objective, acoustic analysis to determine whether a given sound is a keynote, and certainly it would be impossible for such an analysis to account for the importance a sound has to a community.
However, we are still aware of the sound, in the sense that if asked whether we had heard it, we could probably respond affirmatively, as long as the event were not too distant in the past. Therefore, this type of listening differs from "subliminal" perception which is defined as the total lack of conscious awareness of a perception, but with later behavioral evidence that something has been experienced at a subconscious level (Dixon, 1971). Whether subliminal perception exists for sound is still controversial, whereas the experience of background listening occurs all the time.
In the human case, the ranges are quite large. For instance, with intensity, the dynamic range is larger than that of any audio system that processes sound. This range extends from the threshold of hearing, the slightest intensity level that excites the auditory system, to the threshold of pain, the intensity level that causes acute discomfort. The difference in intensity between the two levels is on the order of magnitude of a trillion to one, a range that is so large that a logarithmic scale has been devised to reduce it to a difference of 120 on the decibel (dB) scale.
Acoustic Communication (Communication, Culture, and Information Studies) by Barry Truax