Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Speech Science > Exam 1: research, SLC, acoustics > Flashcards

Exam 1: research, SLC, acoustics Flashcards

1
Q

Put speech chain in order

A

wernickes
brocas
respiration
phonation
resonation
articulation
sound wave
outer ear
middle ear
inner ear
auditory nerve
auditory cortex
wernickes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Define speech. differentiate speech from language and comm

A

voluntary neuromuscular process of producing speech sounds.
speech cannot exist without language while language can exist without speech
communication can exist without language unlike speech

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

describe three areas of speech science

A

speech production: production of speech sounds
speech transmission: sending messages
speech perception: receiving and comprehending messages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is the source in the source filter theory? what is the filter? what does the filter do?

A

source is vocal folds
filter is vocal tract
filter narrows and widens the vocal tract to help produce the sounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

the property of __ describes cycles per second and its unit of measurement is __. its psychological equivalent is __ which is measured in __.

A

frequency
hertz
pitch
mels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

the property of __ describes magnitude or force and its unit of measurement is __.
Its psychological equivalent is __ and its units of measurements are P __ and __.

A
  1. intensity
  2. decibels
  3. loudness
  4. phons
  5. sones
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

the frequency range the the human ear is capable of hearing is

A

20-20000 hz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

the portion of a sound wave where molecules are pulled apart is called

A

rarefaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

the portion of a sound wave where molecules are pushed together is called

A

compression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

the amount of time that it takes to complete one cycle is known as

A

period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

SPL stands for ___ and instrumentation used to measure SPL is the ___ ___.

A

sound pressure level
sound level meter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

IL stands for __ and it is related to sound ___

A

Intensity level
power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is the relationship between dB IL and dB SPL

A

power is equal to pressure squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

considering the formula for dB SPL, describe the numbers used in the ratio. what is the significance of the denominator? why do we use logs?

A

20(log) po/pr
reference number: .0002 dynes/cm2
the bottom number is in the reference point for comparing sound pressures.
log is used to compress the large range of sound pressure values

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

given the duration of 0.025 secs, what is the frequency of this waveform? 4.5 cycles

A

4.5/0.025 = 180 Hz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

given a time of .025, calculate the period of this waveform. 4.5 cycles

A

.025/4.5 = .006 secs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

the sound pressure output of the sound source is 20,000 dyne/cm2. what is the sound pressure level in decibels?

A

20 (log) = 20,000/.0002 dynes/cm2 = 10^8
20 (8) = 160 db SPL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

rules pertaining to social use of language

A

pragmatics

19
Q

rules pertaining to a languages meaning

A

semantics

20
Q

rules pertaining to a languages sound system

A

phonology

21
Q

smallest unit of meaning

A

morphology

22
Q

given an intensity level of 10^4 w/cm2. what is the intensity of dBIL?

A

10 (log) 10^4 / 10^-16 = 10^20
10(20) = 200 dB IL

23
Q

given the following waveform considering .25 sec time period. calculate the wavelength (v = 340 m/s)

A

f = 4.5 / .25 = 18
w = 340/18
w = 18.90 m

24
Q

describe the Fourier theory

A

waveforms can be decomposed into set of sine waves in particular to frequency, amplitude and intensity

25
Q

sound is made up of two or more frequencies not harmonically related and not repeatable

A

aperiodic

26
Q

general term for sound energy distributed across multiple frequencies

A

complex

27
Q

sound made up of two or more frequencies that are harmonically related and repeatable

A

periodic

28
Q

general term for sound energy distributed at one frequency

A

simple

29
Q

speech sounds can be characterized as the following type of sound

A

complex
periodic
aperiodic

30
Q

sound waves can be displayed in several different ways. describe how frequency, time and intensity are displayed on a spectrogram?

A

frequency is on y axis with low frequencies at bottom and high at top
time is x axis
intensity is determined by the darkness on the graph, brighter means more intensity

31
Q

sound waves can be displayed in several different ways. describe how frequency, time and intensity are displayed on a waveform

A

frequency is amount of cycles in the waveform per second
time is seconds represented by x axis
intensity is point of maximum displacement which is where compression is taking place

32
Q

loudness contour curve. what is it used for?

A

helps determine loudness levels when given intensity and frequency

33
Q

find the loudness in phons of a 4000 hz at 58 db SPL

A

60 phons

34
Q

t/f: intensity and loudness show good correlation in high frequencies

A

true

35
Q

sones is a subjective unit of loudness as perceived by a person with normal hearing, equal to the loudness of a pure tone having a frequency of __ hz at __ dB.

A

1000 hz
40 dB

36
Q

tuning fork demonstration: if I hit a tuning fork with a mallet and then put my hand over the tuning fork to decrease the vibrations, which concept is being demonstrated.

A

damping

37
Q

if a sound is made up of 1000 hz, 2000 hz, and 3000 hz. which is the fundamental frequency?

A

1000 hz

38
Q

measured in phons

A

loudness

39
Q

measured in dB

A

intensity

40
Q

measured in mels

A

pitch

41
Q

measured in cycles per time

A

frequency

42
Q

suppose I played my trumpet, showed you different mouthpieces, and demonstrated the changes by pressing the keys, I was demonstrating which concept?

A

source filter theory

43
Q

what does IRB stand for and describe the purpose? ( think CITI training)

A

institutional review board
protects peoples rights who are participating in the research activities and enforces law and rules for ethical research set by the government

Speech Science (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions