lec 9 Flashcards

1
Q

how are vowels vs consonants traditionally classified?

A
  • vowels: formants, duration, tube resonance
  • consonants: manner of articulation
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2
Q

what are the most clinically used anatomical descriptors of consonants? (6)

A
  1. labial
  2. dental
  3. tongue tip
  4. tongue blade
  5. tongue body
  6. tongue dorsum
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3
Q

T or F: IPA is fool-proof

A

false

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4
Q

why are sounds like /w/ and /d3/ not show on IPA charts?

A
  • because they have 2 properties at the same time which cannot be expressed on the chart
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5
Q

what are the orders of steps for prevocalic vs postvocalic stops?

A
  • prevocalic: closure, release. transition
  • postvocalic: transition, closure, release (or no release)
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6
Q

is aspiration phonemic in english?

A

no

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7
Q

T or F: word final stops always show a release

A

false – do not always show a release (“unreleased”)

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8
Q

T or F: vowels preceding a voiced stop consonant are lengthened

A

true

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9
Q

what is voice onset time (VOT)?

A

interval bw release stop (burst) and onset vocal fold vibration (can be 0 - slightly positive)

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10
Q

VOT for voiced vs voiceless sounds?

A
  • voiced: -20 to +20
  • voiceless: 40 to 80
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11
Q

which systems need to be coordinated for speech to sound correct?

A

respiration, phonation, articulation, resonance

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12
Q

how does VOT change with place of articulation?

A
  • increases as you move from labial (/p/) to velar (/k/) sounds
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13
Q

if a client with a speech-sound disorder is producing a VOT of 10, will their sounds be voiced or voiceless?

A

voiced

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14
Q

whats one way to fix VOT?

A
  • stablize jaw
  • masseter spindles provide info to brain about vocal cord timing (phonation and articulation coordination)
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15
Q

blank spaces on spectrograms represent

A

stops

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16
Q

why can’t you phonate when pressing your cheeks?

A

airflow needs to go somewhere in order to phonate

17
Q

what is atmospheric pressure? oral-pharyngeal cavity pressure? subglottal cavity pressure?

A
  • atmospheric = 1030cm H2O
  • oral-pharyngeal = 1030cm H2O
  • subglottal = 1040cm H2O
18
Q

what does the pressure diff need to be to maintain voicing?

A

subglottal needs to exceed oral-pharyngeal by at least 2cm H2O

19
Q

to increase voicing time (maintain the 2cm H2O), one can… (3)

A
  1. increase oral cavity volume
  2. increase oral-pharyngeal cavity volume (lower larynx)
  3. release air (via mouth/nose)
20
Q

what is the larynx position in /apa/ vs /aba/?

A
  • /apa/ = high
  • /aba/ = low
21
Q

what is the glottis position in /apa/ vs /aba/?

A
  • /apa/ = spread
  • /aba/ = closed
22
Q

what is the vocal fold state in /apa/ vs /aba/?

A
  • /apa/ = stiff
  • /aba/ = elastic
23
Q

what is the pharynx wall state in /apa/ vs /aba/?

A
  • /apa/ = tensed
  • /aba/ = elastic
24
Q

what is the intraoral pressure in /apa/ vs /aba/?

A
  • /apa/ = high
  • /aba/ = low
25
Q

which frequency is associated with bilabials vs alveolars vs velars?

A
  • bilabial: low freq
  • alveolar: high freq
  • velar: mid freq
26
Q

a sound is ___ if the noise burst was below F2 of vowel.

A

bilabial

27
Q

a sound is ___ if the noise burst was above F2 of vowel.

A

alveolar

28
Q

a sound is ___ if the noise burst was same as F2 of vowel.

A

velar

29
Q

T or F: we can identify consonants based on F1

A

false – F2 (F1 tells you if there is a consonant-vowel at most)

30
Q

why is the F1 of consonants always rising?

A

because consonants have higher tongue positions than vowels

31
Q

T or F: listeners can easily predict place of articulation based on acoustic F2 transition data.

A

true (consistent linear relationship bw F2 onset and vowel midpoint)