Chapter 2 - Speech Science Flashcards
Phoneme
Smallest unit of sound to effect meaning
Syllable
Smallest phonetic unit
Allophone
Different variations of phonemes
Onset
Nucleus
Coda
Positions of words
2 systems of classifying sounds
1) Distinctive feature analysis: descriptions of speech sounds by unique characteristics that distinguish phonemes from another
2) Place, Manner, Voicing
Cognate pair
Sounds that differ only in voicing
Vowels classified by
Lip position (rounded/unrounded)
Tense/lax
Tongue height
Tongue advancement
Diphthong
Sound formed by combining two weeks in a single syllable, sounds beings as one vowel and moves to another (coin, loud)
Define sound in two ways
1) physical - vibration of molecules in medium
2) physiological - vibration of air that is audible
Compression
Phrase of a sound where vibration of an object increase density of air molecules
Rarefaction
Thinning of molecules when vibrating object returns to equilibrium
Harmonic
Whole number multiples of fundamental frequency
Simple harmonic motion
Back and forth of particles
Frequency that repeats itself
Sinusoidal wave
One peak
Horizontal and vertical are symmetric
Two main vibratory motion characteristics
Frequency and amplitude
Frequency
Cycles per second
Hz
Pitch
Amplitude
Magnitude/direction of sound
dB
Intensity
Period
Amount of time to complete 1 cycle
Natural frequency
Frequency at which a sound normally vibrates
Fundamental frequency
Lowest frequency or the first harmonic
Octave
Interval between two frequencies
Reflection
Sound that hits obstacle and travels backwards
Rarefaction
Bending of sound wave
Complex tone
2 tones of different frequencies are combined
Change in velocity
Acceleration and deceleration
Spectrogram shows
Time
Intensity
Frequency
F1 and F2
F1 - tongue height; volume of pharyngeal cavity; lower tongue equals higher f1, higher tongue equals lower f1.
Voice onset time
Time between release of stop and start of vowel
For ants
Resonant frequencies of vocal tract
Vocal tract
Quarter wave resonator
Open at lips
Closed at glottis
4 vocal tract valves
Labial
Lingual
Velophagryngeal
Laryngeal
Obstruents
Obstructing or constricted flow of air
Stops, fricatives, affricate
Sonorants
Greater intensity
Less constricted vocal tract
Nasals, glides, liquids