Speech Science

Question 1

Acoustics

Answer 1

study of sound and how it is generated

Question 2

sound

Answer 2

physical and psychological perceptions of vibration in air

Question 3

compression

Answer 3

vibratory movements of object increases the density

Question 4

rarefaction

Answer 4

thinning of air molecules

Question 5

simple harmonic (sine wave)

Answer 5

symmetrical and periodic movement

Question 6

aperiodic

Answer 6

don’t repeat at regular intervals

Question 7

amplitude

Answer 7

magnitude of displacement (volume)

Question 8

intensity

Answer 8

sensation of loudness (dB)

Question 9

displacement

Answer 9

change in position (of vocal folds)

Question 10

elasticity

Answer 10

recover it’s form and volume

Question 11

velocity

Answer 11

distance an object moves and direction it takes

Question 12

frequency

Answer 12

rate of vibratory motion measured in cycles per second

Question 13

formant frequency

Answer 13

frequency region with concentrated acoustic energy

Question 14

fundamental frequency

Answer 14

lowest frequency of a periodic wave (1st harmonic)

Question 15

resonance

Answer 15

modification of phonation by the oral/nasal tract

Question 16

DB SPL

Answer 16

sound pressure level- set at 20 micropascals