Exam 1 Part 10 Flashcards
By the 50th percentile of the duration, you should be able to hit the ____ vowel
Target
Are voiced affricates periodic, aperiodic or both?
Both
Are monophthongs periodic, aperiodic or both?
Periodic
Are voiceless fricatives periodic, aperiodic or both?
Aperiodic
Are voiceless oral stops periodic, aperiodic or both?
Aperiodic
Are nasal stops periodic, aperiodic or both?
Periodic
Are diphthongs periodic, aperiodic or both?
Periodic
Relative timing of stop releases and the initial of phonation.
Voice onset time
True or false: “The source-filter account of consonsoant production (i.e., tube model) can also be applied to examining resonanting frequencies such as fricatives and oral/nasal stops. “
True
True or false: Vowels, glides, liquids and nasals are all examples of resonant speech sounds due to how the various configurations of the vocal tract generate different combinations of resonant frequencies for each sound.”
True
True or false: “While fricatives are described as the abrupt and brief halting of airflow, oral stops are described as continuous but turbulent airflow through an constricted channel in the supralarygeal system.”
False; oral stops are brief halting of airflow
True or false: “The source-filter account of consonsoant production (i.e., tube model) can also be applied to examining resonanting frequencies such as fricatives and oral/nasal stops. “
True
“In terms of the source-filter theory and the tube model, nasals differ from other sound classes (e.g.,vowels, glides, fricatives and oral stops) for which of the following reasons?”
Longer and larger tube
True or false: “A plosive sound is one where air flow in the superlargeal system is completely blocked for a brief period of time, which then the release of the bulit-up air pressure causes an explosive and transient airburst. “
True
True or false: “The vocal folds can be used to generate only periodic, and never aperiodic, sources of sound.”
False
Constriction of the vocal tract near a point of maximum PRESSURE _____ the formant frequency
Increases
Constriction of the vocal tract near a point of maximum VELOCITY _____ the formant frequency
Decrease
The 2 principles in the perturbation theory only applies to the ____ formant
1st
The changes in the perturbation theory are relative to the neutral position which is ____
Schwa
What are the standard F1, F2 and F3 for schwa in a 17 cm tube?
500, 1500, 2500
Point in wave with maximum velocity/displacement
Anti-node
Point in wave with maximum pressure
Node
F1 value of /i/ should be ____ than schwa
Lower
F2 value of /i/ should be ____ than schwa
Higher (2700-3500 Hz)
F3 value of /i/ should be ____ than schwa
Higher but subtle change
What are the 3 factors in consonant formation?
State of glottis, place of articulation, manner of articulation
What are the 3 acoustic parts of stops?
Onset, closure, release
Why is the shutting down period not useful in stops?
Acoustic effects are not very noticeable
Releasing of closure and moving to the next segment
Release
