cs&d 320 unit one - quizzes

simple harmonic motion requires TWO fundamental properties of matter. what are they?

stiffness and mass

the psychoacoustic correlate of frequency is ________ and the psychoacoustic correlate of amplitude is ________

pitch; loudness

in audiology, the unit of frequency is _________. the unit of amplitude is ________

Hz; dB

true or false: most real-world signals (like speech) can be broken down into individual sinusoids/sine waves

true

true or false: sound pressure level is measured using a regular (arithmetic) average of the amplitude values of the signal over time

false

which of the following is true about the decibel (dB) scale?

doubling the sound pressure increases the dB by 6 dB

true or false: a-weighting gives more weight to low frequencies than high frequencies when measuring the overall sound pressure level of complex sounds

false

which of the following are the mechanisms through which the middle ear matches impedance between the air and the cochlea?

lever action and area ratio

true or false: a transfer function describes how the amplitudes of different frequencies in a signal (like speech) are changed by a system (like the ear canal)

true

the organization of the cochlea from high frequencies to low frequencies is called:

tonotopic

which bone is the inner ear in?

temporal

true or false: high frequencies are encoded in the apex of the cochlea

false

number 2 is the __________. number 8 is the ________.

scala media; scala vestibuli

which TWO of the following are NOT part of the vestibular system?

promontory + tectorial membrane

sounds emitted by the movement of the outer hair cells are called:

otoacoustic emissions

true or false: the cochela is fully formed at birth, but the middle and outer ear continue to grow until middle childhood

true