Articulation and Resonance W8 Flashcards
articulation and resonance
respiratory and phonatory system work together to produce vocal tone exhaled air sets the adducted vocal folds into vibration vocal tone is shaped and molded into human speech by the vocal tract
how many speech sounds per second
20
acoustics
resonance - a response to an outside force, vibration resonator - natural resonant frequency, inverse relationship between volume and frequency external source = vf vibration resonator = vocal tract
resonance of the vocal tract
chambers within a chamberl - oral, nasal, pharyngeal shape and volume variations with movement of articulatory structures
vocal tract as a filter
multiple harmonics of the vocal tone change the shape of the cavities of the vocal tract - change their natural resonant frequency some frequencies of the vocal tone resonate, others are attenuated periodicity - no constriction along vocal tract = periodic sound, conrstriction along vocal tract = aperiodic sound voicing - vf turned on = voiced, vf turned off = voiceless. vowels are all voiced, 15/24 consonants are voiced voiced consonants have degree of periodicity due to vocal tone + constriction of articulators
how is speech produced?
sxt=p source, transfer, product
vowels:
source = respiration and vocal fold vibration
transfer = tongue movement
product = specific vowel sound
consonants:
source = respiration and maybe vf vibration
transfer = fixed/movable articulators
product = specific consonants such as /f/ vs /m/
source filter theory
vowel sounds
vowels characterised by the position of the tongue, high vs low, front vs back
vowel quadrilateral
consonant sounds
created with either complete obstruction of the vocal tract, or a narrow constriction
- caused by articulators
- produced with or without phonation
classified according to place, manner, voicing
tongue
primary articulator in most consonant sounds and all vowel sounds
involved in 18/24 consonants
articulates with other structures to create constriction or obstruction
intergrated and interrelated movements
lips
bilabial sounds p b m
primary articulators are the lips
lip rounding - clue, water
teeth
secondary articulator
linguadental sounds, that thin, primary articulator is the tongue
labiodental sounds f,v primary articulators are the lips
hard palate
alveloar ridge, alveolar sounds, t d s z l n sometimes r, tongue is primary articulator
hard palate, palatal sounds, shock meause cheap jeep yell sometimes r, tongue is primary articulator
velum
velar sounds, k g ring, tongue is primary articulator
responsible fo regulating opening of the velopharyngeal port for nasal sounds n m ring
mandible
movement via tmj
creates the position of the oral cavity important for distinguishing vowel, open mid close vowels
can make rapid repetitive movements without fatigue