acoustics Flashcards
vibratory motion is possible because of
elasticity
single frequency tone
pure tone
sine wave of simple harmonic motion
single frequency tone repeating
velocity
amount of molecular displacement per unit of time
2 characteristics of vibratory motion
frequency and amplitude
medium transmitting sound doesnt affect the _____ but does affect the ___
frequency, speed
more dense the medium
slower the speed of sound
more elastic the medium
faster the speed of sound
normal pitch response
20 Hz to 20,000 Hz
more sensitive to what frequency
lower, below 1,000 Hz
amplitude
sound pressure = amount force/unit area
the greater molecular displacement, higher amplitude/intensity
minimum intensity to stimulate auditory system
hearing level
normal speech intensity
50- 70 dB
intensity that induces pain
100dB
spectrogram measures
fundamental frequency
fundamental frequency
lowest component frequency of periodic wave, tone produced by vibration of the vocal folds before air reaches cavities
high vowels fundamental frequency
higher fundamental frequency
low vowels fundamental frequency
lower fundamental frequency
F1 varies with tongue _____
F2 varies with tongue _____
f1: tongue height
f2: tongue advancement
voice onset time
between release of stop consonant and beginning of vowel
voice termination time
time required to cease vocal activity
