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Speech Science

08 Physiological Acoustics- Coarticulation

Phonetic Context how we produce any single phoneme during speech is dependent upon: -Where you’re coming from -Where you’re going to next -It depends on the preceding and following phonemes
Overlapping Movements -When we produce a word or phrase, we do not pre-plan each phoneme individually. -Rather an entire strings or sequences of phonemes must be pre-planned as a group
Assimilation -refers to how a phoneme is changed to another phoneme due to surrounding sounds. (ex: I want you becomes I wantchu)
Co-Articulation -Refers to how a phone is produced differently due to surrounding sounds, but still remains the same phoneme. (ex: The /k/ in cat is produced differently than the /k/ in /skat/ or /back/.
Two Types of Co-Articulation .Backward Co-Artic .Forward Co-Artic
Backward Co-Articulation -Where the characteristics of one phone can be observed in later phones in the string. -i.e., a later sound contains characteristics (is affected by) an earlier sound. -“Left-to-Right Co-Articulation”
Causes of Backward Co-Articulation 1.Inertia 2.Time constraints 3.Mechanical constraints
Forward Co-Articulation -Where a preceding phone is influenced by the production of a later-occurring phone. -i.e., a phone contains characteristics of a sound to be produced later in the string. -“Right-to-Left Co-Articulation”
Cause of Forward Co-Articulation Anticipation
Co-Articulation is not influenced by syllable or word boundaries. True or false? true
How far can the speech production mechanism look ahead? It will look ahead until it reaches the next contradictory gesture
Created by: aramos139



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