Acoustics

Question 1

What is frequency?

Answer 1

number of completed cycles of vibration that occur in one second

Question 2

Define wavelength.

Answer 2

distance between two crests or troughs of a wave

Question 3

pitch

Answer 3

psychological perception of frequency and can change depending on people’s perception

Question 4

define period

Answer 4

duration of one complete cycle (crest to crest)

Question 5

intensity

Answer 5

magnitude of energy carried along the sound wave and is measured in decibels

Question 6

periodic sound

Answer 6

waves repeat themselves consistently and predictably over time

Question 7

fundamental frequency

Answer 7

lowest frequency in vocal tone F0

Question 8

mucosal wave

Answer 8

rippling motion that can be observed in recordings as it travels mediolaterally along superior surface of the vocal folds

Question 9

loudness

Answer 9

directly related to subglottic air pressure
measures of amplitude and intensity in recordings

Question 10

sonorant

Answer 10

produced with uninterrupted air

Question 11

continuants

Answer 11

flow of air is not blocked

Question 12

sibilants

Answer 12

high frequency sounds

Question 13

stridents

Answer 13

produced by forcing air through small opening

Question 14

stops

Answer 14

complete vocal tract closure
p,b t,d k,g

Question 15

fricative

Answer 15

air through small hole or gap in mouth
f,v th s,z sh h

Question 16

affricate

Answer 16

sudden release of constriction
ch,j

Question 17

liquid

Answer 17

w,y

Question 18

nasal

Answer 18

m, n, ng

Question 19

glide

Answer 19

w, y

Question 20

labial

Answer 20

p, b, m, w

Question 21

labio-dental

Answer 21

f, v

Question 22

lingua dental

Answer 22

th

Question 23

alveolar

Answer 23

t, d, s, z, n, l, r

Question 24

palatal

Answer 24

sh, ch, j

Question 25

velar

Answer 25

k, g, ng

Question 26

glottal

Answer 26

h