The result is usually displayed as an amplitude-frequency spectrum . The addition of sine waves at varying frequencies and amplitudes to produce a complex periodic sound. An intonation pattern common in Dutch, but with correlates in other languages, such as English. The pattern consists of a rise in pitch followed by a level plateau and then a pitch fall. The term is particularly associated with the the Dutch school of intonation research at the Institute for Perception Research in Eindhoven.
Some writers use the term to refer to any material before the intonation nucleus.
More recently the term has been used to refer to the material from the first accented syllable up to but not including the nucleus. Height One of the parameters used to specify vowel quality. The height of a vowel refers to the estimated relationship between the highest point of the tongue and the roof of the oral cavity. This is contrasted with a pause, occurring at the end of an intonation pattern, which is not necessarily the result of a hesitation on the part of the speaker. The opposite of homorganic .