A spectral glide is a music-composition concept, consisting of a "modification of the vowel quality of a tone" (Erickson 1975, p. 72). Since the vowel quality of a tone is determined by the overtones, spectrum, or timbre of that tone (all three terms describe approximately the same hearing experience), a spectral glide is a move from a spectrum characteristic of one vowel to a spectrum characteristic of another vowel. A spectral glide may be accomplished through a wah-wah, mute, or pedal, or through the modification of one's vocal tract while speaking, singing, or playing an instrument such as the didgeridoo. Lip-vibrated instruments with large mouthpieces such as tuba and trombone allow extensive modification of vowel quality, while woodwinds have a smaller range, with the exception of the flute in air-sound mode. Strings have the smallest range (Erickson 1975, p. 72).
The glide rate and the vowel contrasts used are important factors in the compositional use of spectral glides. Karlheinz Stockhausen specifies the use of a trumpet wa-wa mute in his Punkte (1952/1962/64/66/93) through open and closed circles connected by a line. A. Wayne Slawson's computer-generated Wishful Thinking about Winter (Decca DL 710180) uses speechlike sounds featuring a large range of spectral glide rates. Loren Rush began investigating in 1967 the computer-generated modeling of timbres "in between" familiar instruments such as a bassoon and bass clarinet, and devised a program to provide a smooth transition between timbres (Erickson 1975, p. 73).
Erickson, Robert (1975). Sound Structure in Music. University of California Press. ISBN0-520-02376-5.
January 01, 1970
spectral, glide, this, article, provides, insufficient, context, those, unfamiliar, with, subject, please, help, improve, article, providing, more, context, reader, january, 2013, learn, when, remove, this, message, spectral, glide, music, composition, concept. This article provides insufficient context for those unfamiliar with the subject Please help improve the article by providing more context for the reader January 2013 Learn how and when to remove this message A spectral glide is a music composition concept consisting of a modification of the vowel quality of a tone Erickson 1975 p 72 Since the vowel quality of a tone is determined by the overtones spectrum or timbre of that tone all three terms describe approximately the same hearing experience a spectral glide is a move from a spectrum characteristic of one vowel to a spectrum characteristic of another vowel A spectral glide may be accomplished through a wah wah mute or pedal or through the modification of one s vocal tract while speaking singing or playing an instrument such as the didgeridoo Lip vibrated instruments with large mouthpieces such as tuba and trombone allow extensive modification of vowel quality while woodwinds have a smaller range with the exception of the flute in air sound mode Strings have the smallest range Erickson 1975 p 72 The glide rate and the vowel contrasts used are important factors in the compositional use of spectral glides Karlheinz Stockhausen specifies the use of a trumpet wa wa mute in his Punkte 1952 1962 64 66 93 through open and closed circles connected by a line A Wayne Slawson s computer generated Wishful Thinking about Winter Decca DL 710180 uses speechlike sounds featuring a large range of spectral glide rates Loren Rush began investigating in 1967 the computer generated modeling of timbres in between familiar instruments such as a bassoon and bass clarinet and devised a program to provide a smooth transition between timbres Erickson 1975 p 73 See also editWah wah pedal Muted trumpet Subtractive synthesisSources editErickson Robert 1975 Sound Structure in Music University of California Press ISBN 0 520 02376 5 Retrieved from https en wikipedia org w index php title Spectral glide amp oldid 1192795781, wikipedia, wiki, book, books, library,
