What is fundamental frequency? - ANSWER-lowest periodic frequency, slowest repeating patter or longest wavelength and period.
Can complex waves still be periodic? - ANSWER-yes
What does it mean to be "nearly periodic"? - ANSWER-There are some minor aperiodicity but there are repeating pattter...
COMD 5070 (2nd test)
Questions & Answers 100%
Correct!!
What is fundamental frequency? - ANSWER-lowest periodic frequency, slowest repeating patter or
longest wavelength and period.
Can complex waves still be periodic? - ANSWER-yes
What does it mean to be "nearly periodic"? - ANSWER-There are some minor aperiodicity but there
are repeating pattterns
What is the period of a sound? - ANSWER-period=1/F0 (the amount of time a single peak to peak
cycle takes)
What does the Hz unit mean... can you explain it in your own words? - ANSWER-The number of
cycles (vocal folds opening and closing) per second.
Why would SLPs be interested in measurements of fundamental frequency? - ANSWER-tells us about
voice and formant frequencies tell us about articulation.
CANNOT DIAGNOSE VOICE DISORDERS
When the vocal folds vibrate faster/slower, what is the perceived change in a person'svoice? (e.g. is it
louder, softer, higher, or lower in pitch?) - ANSWER-if they vibrate faster it is higher pitch. If they are
slower it is lower pitch
Describe the different registers of vocal fold vibration. Which ones occur at a lower or
higherfundamental frequency, and how tight/slack are the vocal folds? Which register has thelarger
fundamental frequency/loudness range? - ANSWER-Modal Register: Chest voice, whole mass of vocal
folds oscillates.
Falsetto: Vocal folds are stretched tightly. At high end of F0 range.
, Glottal fry: very low F0 range. vocal folds are relatively slack. Limited pitch range. limited loudness.
Does fundamental frequency change with age? (Note: you don't have to explain why thisoccurs, just
be able to remember the general trends). - ANSWER-yes. the increase mass of the vocal folds as we
grow from childhood.
Why might a voice disorder change a person's fundamental frequency? - ANSWER-if they have
reduced loudness or range it will effect F0
What are "practice effects"? - ANSWER-Differences that we see when people train or practice certain
voice exercises.
-Improved phonation duration
-improved fundamental frequency range
Can sound travel through mediums other than air? - ANSWER-yes sound can also travel through
water and solid objects
What is resonance? - ANSWER-a phenomenon whereby an object vibrates with maximum energy at
a particular frequency.(or range of frequencies)
How do you make something resonate? - ANSWER-Resonance occurs when a force is applied at the
preferred or natural frequency of an object and a large increase in the amplitude of its vibration
occurs.
Describe a standing wave - ANSWER-When a wave encounter an obstruction it can be bounced back
in the opposite direction. The result is a standing wave: an oscillating wave that is fixed in space.
What are the names of the "rules" for calculating resonance in open tubes? What about tubes that
have one end closed? - ANSWER-If the tube is open: Fr=c/2l
If the tube is closed: Fr=c/4L
What does it mean if a person has a lack of variability in their fundamental frequency acrossa reading
passage (i.e. how would they sound)? - ANSWER-They would sound monotone.
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