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?
what is the 'E" in ENT?
who is the father of audiology?
who was mentored by the father of audiology?
who is the mother of pediatric audiology?
what are the 3 big parts of aud scope of practice?
5 aud specialty areas
pediatric, medical, educational, rehabilitative, industrial
what does AAA stand for?
American Academy of Audiology
objective study of sound
brain's interpretation of sound
3 pre req's of sound
source of energy
concept of communication
generation of speech
feedback link to the speaker
propagation of sound waves
body stays in motion or at rest until it is put into motion/out of motion by an acting force
The ability to be stretched or compressed and then return to original size
air molecules tight - high pressure
air molecules apart - low pressure
particles move perpendicularly to the direction the wave travels
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?
what kind of wave is a sound wave displayed as?
only one repetitive frequency source is present
what kind of wave is a pure tone
short wave form = ____ frequency
long wave form = _____ frequency
speed of sound is governed by
properties of the medium
sound travels faster through a _____ medium
3 influences on speed of sound through air
measured by how many times a sequence is made in one second
what is psychoacoustic and subjective?
what is frequency measured in?
3 characteristics that determine frequency
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
every object has a frequency where it is most easily set into motion
humans perceive frequency as ________
speech range hz
250, 500, 1000, 2000, 4000, 8000
does aging impact hearing?
wavelength changes with frequency... longer wavelength =
psychoacoustic perception of phase
lower frequency = ____ period
sound is created when
air molecules are disturbed
pitch and loudness
year of AAA
relates to how hard a wave vibrates
increased force = increased ___
range of human hearing
sound pressure level decibel
hearing level decibel
sensation level decibel
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
smallest unit of sound just audible to highest level of sound that is tolerable
no repeating patterns, perceived as noise