Communication Sciences and Disorders 4411A/B Lecture Notes - Lecture 7: Speech Disorder, Vocal Folds, Speech Sound Disorder
17 Nov 2017
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Speech sounds: phoneme, spoken sound of a language, allophones, variations in the same phoneme, e. g. how you pronounce a letter at the beginning/end of a word. International phonetic alphabet (ipa: english alphabet = 26 letters, problem: no simple symbol-to-sound relationship. Ipa = system for representing sounds of speech: 42 ipa symbols (18 vowels and 24 consonants) Some examples: bilabial (m, b, p, labio-dental (f, v, lingua-dental (th, lingua-alveolar (t, s, lingua-palatal (sh, lingua-velar (k, g, glottal (h) Voicing: voiced = vocal folds vibrating, voiceless = no vocal fold vibration, cognates, speech sounds that share same manner and place of articulation, but differ along voicing dimension, e. g. , /d/ & /t/, /f/ & /v/, Vowels: open vocal tract configuration with vocal folds vibrating, vowel differentiation determined by, tongue position, place of articulation (front, central, back, height of tongue (high, mid, low, lip position, rounded or unrounded.
