final exam Flashcards
In what unit is frequency measured?
hertz
What is the study of the physical structured and how they interact to produce the sounds of a language?
physiological phonetics
In the formulas F=1/T and T=1/F, what does the T and F stand for, respectively?
T- time
F-frequency
What does vibratory or oscillatory mean?
back and forth
In what unit is intensity measured?
decibels
What are the two components to velocity?
speed
direction
in the formula for wavelength, lambda stands for:
speed of sound
This is what you studied in phonetics class.
perceptual phonetics
In what unit is time measured?
seconds
The amount of time it takes to complete one cycle is also called the:
period
What is the speed of sound in feet?
1100
What is the study of the measurable acoustic or physical properties of sound and includes the study of the frequency, intensity, and duration of the sound?
acoustic phonetics
What affect does friction have on sound?
damps it
Which substance can be a medium?
solid, liquid, or gas
is the study of the “articulation and physiology of speech production, the acoustic characteristics of speech, and the processes by which the listener’s perceive speech.”
speech science
_____ is the degree or amplitude of particle displacement and its psychological correct is ________
intensity
loudness
consists of one frequency, which is pure tone, such as a whistle.
simple sound wave
_____ the rate, or number of times per second, at which a vibratory or oscillatory cycle is completed. The psychological correlate of frequency is ______
frequency
pitch
is defined as a disturbance to the particles of a medium, taking the form of vibratory or oscillatory movement.
sound
______ of elasticity refers to how much the matter can be disturbed, while the ______ of elasticity refers to the amount of resistance the matter has to movement.
degree
strength
SHM stands for
simple harmonic motion
When the pressure is high and the particles are close together, this is the _____ portion of the wave. When the pressure is low and the particles are farther apart, this the
_______ portion of the wave.
compression
refraction
What happens to the amplitude over time (use the word we talked about)? Why?
Over time, the amplitude, or the degree of displacement, decreases over time due to friction. This is called damping. This is shown by comparing the degree of displacement at points B and D versus points H and J.
How do you know if the wave is at a point of compression?
Compression is when particles are spaced closely together and when pressure is high. This occurs as the particle moves closer to the point of rest.
How do you know if the wave is at a point of rarefaction?
Rarefaction is when particles are spaced further apart and pressure is low.
Explain the particles movement (where it is, what is happening to it, and why)
In the graph at Position A, the particle is at the point of rest, then, due to force, moves toward Position B. Position B is maximum positive displacement, where velocity is at 0 and a change in direction occurs to due elasticity. At Position C, the particle passes through the point of rest, where maximum velocity occurs and minimum displacement occurs. Due to inertia, the particle continues to move past Position C in a negative direction to Position D. At Position D, maximum negative displacement occurs and velocity is at 0. Again, due to elasticity, the particle moves in the opposite direction toward Position E at the point of rest. This concludes one complete wave and this continues to occur, until friction and damping causes displacement to decrease.
Which is NOT a spectrum according to the sound source filter theory?
vocal
Which class of sounds is characterized as vowel-like and has lower frequency resonance due to larger total resonating cavity?
nasals
Where is F2 created?
From the level of arch of the tongue to the lips (arch of the tongue).
Which class of sounds is characterized by its sudden onset and short duration due to its transient nature and it may or may not be followed by aspiration?
plosives
The /æ/ sound is
periodic
On a spectrogram, what do the vertical striations (or tiny lines) represent?
voicing
Which class of sounds is characterized by a sudden onset and is followed by sound produced at the point of constriction (this class is a combination of two others)?
affricates
What is the vocal tract?
quarter wave resonator
What is the lowest frequency sound actually coming from the vocal folds, and what are the higher frequencies coming from the vocal folds in the complex sound?
VFF
harmonics
Which class of sounds is characterized by a gradual onset and a longer duration and is known for their sonorant properties?
fricatives