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Pitch contour may include multiple sounds utilizing many pitches, and can relate the frequency function at one point in time to the frequency function at a later point. It is fundamental to the linguistic concept of tone , where the pitch or change in pitch of a speech unit over time affects the semantic meaning of a sound.
A tone contour or contour tone is a tone in a tonal language which shifts from one pitch to another over the course of the syllable or word. Tone contours are especially common in East Asia , Southeast Asia , West Africa , Nilo-Saharan languages , Khoisan languages , Oto-Manguean languages and some languages of South America .
In phonetics, contour describes speech sounds that behave as single segments but make an internal transition from one quality, place, or manner to another. Such sounds may be tones, vowels, or consonants. Many tone languages have contour tones, which move from one level to another.
Tone is the use of pitch in language to distinguish lexical or grammatical meaning—that is, to distinguish or to inflect words. [1] All oral languages use pitch to express emotional and other para-linguistic information and to convey emphasis, contrast and other such features in what is called intonation, but not all languages use tones to distinguish words or their inflections, analogously ...
An equal-loudness contour is a measure of sound pressure level, over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. [1] The unit of measurement for loudness levels is the phon and is arrived at by reference to equal-loudness contours. By definition, two sine waves of differing ...
These properties can be those of stress, intonation (a single pitch and rhythm contour), or tonal patterns. Prosodic units occur at a hierarchy of levels , from the syllable , the metrical foot and phonological word to the intonational unit (IU) and to a complete utterance . [ 1 ]
Contour may refer to: Contour (linguistics), a phonetic sound; Pitch contour; Contour (camera system), a 3D digital camera system; Contour Airlines; Contour flying, a form of low level flight; Contour, the KDE Plasma 4 interface for tablet devices; Contour line, a curve along which the function has a constant value; Contour drawing, an artistic ...
Temporal envelope (ENV) and temporal fine structure (TFS) are changes in the amplitude and frequency of sound perceived by humans over time. These temporal changes are responsible for several aspects of auditory perception, including loudness, pitch and timbre perception and spatial hearing.