The Acoustic Properties of Unexplained Rapping Sounds
نویسنده
چکیده
The wave characteristics of unexplained rapping sounds have been studied and compared with similarsounding raps produced using normal tapping methods. Differences in low frequency wave properties between the two classes of raps have been noted. There are indications that the acoustic properties of the two classes of sounds are different and that this technique can be used to differentiate between normal and inexplicable rapping sounds witnessed during RSPK activity. A tentative theory of localised stress development followed by a sudden release of tension has been put forward to account for the rapping sounds.
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