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Speech & Hearing > Chapters 1,2,12 > Flashcards

Chapters 1,2,12 Flashcards

1
Q

study of sound

A

acoustics

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2
Q

consists of only one frequency

A

pure tone

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3
Q

moves back and forth a fixed number of times per second, no matter how hard the turning fork is struck

A

simple harmonic motion

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4
Q

tendency for motion or lack of motion to continue

A

inertia

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5
Q

force that causes a deformed structure to resume its original shape

A

elasticity

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6
Q

speed of an object

A

velocity

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7
Q

Absolute value of a maximum displacement from a zero value during one period of an oscillation

A

amplitude

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8
Q

number of completed cycles per second

A

frequency

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9
Q

time taken for each cycle

A

period of vibration

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10
Q

particle movement is in the same direction as wave movement

A

longitudinal wave

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11
Q

waves seen radiating from tossing a stone or dipping a finger into water

A

transverse waves

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12
Q

needed for production of sound

A
  1. source of energy
  2. vibrating sound
  3. medium of transmission
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13
Q

generates more than one frequency

A

complex tones

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14
Q

pattern of vibration repeats itself exactly overtime

A

periodic soundwaves

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15
Q

vibration is random and displays no repeated pattern

A

aperiodic soundwaves

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16
Q

number of vibratory cycles per second

A

frequency

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17
Q

listeners perception of frequency changes and differences

A

pitch

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18
Q

what abbreviation does pitch use

A

mels

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19
Q

is pitch physical or psychological?

A

psychological

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20
Q

abbreviation frequency uses

A

Hz

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21
Q

is frequency physical or psychological

A

physical

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22
Q

causes sound wave to move down

A

rarefaction

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23
Q

the larger the disturbance or displacement of the indivual particles the greater is the height of its graph above amplitude

A

true

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24
Q

what determines loudness

A

amplitude

25
Q

greater frequeny has

A

higher pitch

26
Q

range of hearing

A

20-20,000 Hz

27
Q

range of frequencies most important for perceiving speech

A

100-5,000Hz

28
Q

amplitude or the intensity of a sound

A

Db

29
Q

Psychological measurement of loudness is sone, where loudness contour is the comparison of different tones to have the same loudness levels is phon.

A

true

30
Q

The unit of equal loudness is the

A

phon

31
Q

loudness level

A

sone

32
Q

speed of sound in air

A

c=344m/s

33
Q

wavelength

A

sound velocity divided by frequency

34
Q

sound intensity:

A

decrease inversely as a function of the square of the distance of the source

35
Q

Why sound travel faster in the steel than water?

A

steel is more dense

36
Q

Time horizontally, frequency vertically, intensity by intensity of blackness

A

spectrogram

37
Q

What is the speed sound travels at?

A

340m/s

38
Q

Sound lower than 20hz

A

subsonic

39
Q

sound higher than 20,000hz

A

supersonic

40
Q

Wave whose particle motion is perpendicular to the wave movement

A

transverse

41
Q

Wave whose particle motion is in the same direction as the wave movement

A

Longitudinal

42
Q

simple sound consists of

A

single frequency

43
Q

complex sound consist of

A

multiple frequencies

44
Q

loudness depends on…

A

amplitude

45
Q

pitch depends on…

A

frequency

46
Q

quality or timbre depends on…

A

waveform

47
Q

x-axis is frequency, y-axis is amplitude

A

spectrum

48
Q

velocity/frequency

A

wavelength

49
Q

amplitude or the intensity of a sound

A

dB

50
Q

the rarefaction part of the soundwave is

A

where the air pressure is lower than normal, and the molecules are separated

51
Q

simple sound vibration is

A

sinewave

52
Q

multiple frequencies are called

A

harmonics

53
Q

graphic representation of the frequency and relative amplitude of the components of complex sounds

A

spectrum

54
Q

amplitude x time

A

waveform

55
Q

loudness is…

A

phon

56
Q

sound pressure of conversation at 3 feet is

A

60-70dB

57
Q

unit of measuring pitch

A

mels

58
Q

what is the fundamental frequency?

A

lowest frequency that determines the repetition rate of the pattern

Speech & Hearing (4 decks)

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