Audiology Quiz 1

What are the three big things that aud and speech path have in common?

1. aural rehab
2. aural habilitation
3. auditory processing disorder

What is an ENT called?

otolarygologist

what is the 'E" in ENT?

otologist

who is the father of audiology?

raymond carhart

who was mentored by the father of audiology?

james jerger

who is the mother of pediatric audiology?

marion downs

what are the 3 big parts of aud scope of practice?

electronystagmography
videonystagmagraphy
vestibular rehab

5 aud specialty areas

pediatric, medical, educational, rehabilitative, industrial

what does AAA stand for?

American Academy of Audiology

acoustics

objective study of sound

psychoacoustics

brain's interpretation of sound

3 pre req's of sound

source of energy
vibrating object
medium

concept of communication

generation
propagation
reception

speech chain

generation of speech
feedback link to the speaker
propagation of sound waves
reception
transmission

inertia

body stays in motion or at rest until it is put into motion/out of motion by an acting force

elasticity

The ability to be stretched or compressed and then return to original size

compression

air molecules tight - high pressure

rarefraction

air molecules apart - low pressure

transverse wave

particles move perpendicularly to the direction the wave travels

longitudinal wave

a wave in which the particles of the medium vibrate parallel to the direction of wave motion

what kind of wave is a sound wave?

longitudinal

what kind of wave is a sound wave displayed as?

transverse

sine wave

only one repetitive frequency source is present

what kind of wave is a pure tone

sine

frequency formula

1/T

period formula

1/F

short wave form = ____ frequency

high

long wave form = _____ frequency

low

speed of sound is governed by

properties of the medium

sound travels faster through a _____ medium

denser

3 influences on speed of sound through air

moisture/humidity
temperature
barometric pressure

measured by how many times a sequence is made in one second

frequency

what is psychoacoustic and subjective?

pitch

what is frequency measured in?

Hertz

3 characteristics that determine frequency

length
stiffness
mass

effect of length on frequency

longer the length of the wave, the lower the frequency

effect of stiffness on frequency

stiffer = higher

effect of mass on frequency

more mass = lower

resonance

every object has a frequency where it is most easily set into motion

humans perceive frequency as ________

pitch

speech range hz

1000-4000 Hz

octaves

250, 500, 1000, 2000, 4000, 8000

does aging impact hearing?

duh

wavelength changes with frequency... longer wavelength =

lower frequency

psychoacoustic perception of phase

timing

lower frequency = ____ period

higher

sound is created when

air molecules are disturbed

perceptually measured

pitch and loudness

physically measured

frequency

year of AAA

1988

intensity

relates to how hard a wave vibrates

increased force = increased ___

amplitude

range of human hearing

20-20,000 Hz

sound pressure level decibel

dB SPL

hearing level decibel

dB HL

sensation level decibel

dB SL

threshold

what a person can hear from minimal to maximum

If a sound is presented at 40dB SL above threshold and the presented tone is at 85 dBHL, what is the patient's threshold in dB HL?

45 dB HL

A patient has a 15 dB HL threshold. When a 30 dB HL tone is presented, what is the dB SL at which the tone was presented?

15 dB HL

If we present a tone at 100 dB HS and it is 45 dB SL above the patient's threshold. What is the patient's threshold in dB HL?

55 dB HL

dynamic range

smallest unit of sound just audible to highest level of sound that is tolerable

periodic sound

fundamental Hz

aperiodic sound

no repeating patterns, perceived as noise