01 - Sound Booth Equipment Overview Flashcards
What is “normal hearing”
The average level of sound that can just be detected, across a large group of young, healthy listeners
-usually measured across pitches
What is the curved shape of normal hearing levels called?
Minimum Audible Pressure Curve (MAP)
Clinical audiometers have the MAP programmed into them to create the __ scale
HL Scale
How often are audiometers recalibrated?
Once per year (equipment checks are daily)
The sequence of clinical processes is:
- Hearing screening and/or referral
- ______________
- Counselling & Intervention(s)
- _________________
Audiological assessment, Outcome evaluation
True or False: The highest level of audiometer is Type 1A (diagnostic audiometer) and costs between 5 and 10 thousand dollars
True
True or False: Besides diagnostic audiometers, there are also automated and screening audiometers
True
Name 3 types of routing outputs of an audiometer
Insert phones
TDH headphones
Bone Oscillator
Sound Field
True or False: Insert earphones cost between 300 and 500 dollars, and provide ~30 dB of sound isolation
True
Ear drum/middle ear function is tested using _________ and compared to clinical norms. Cost $3-7 K
Middle Ear Analyzers
“ABR” stands for __________ and costs $15-45 K
Auditory Evoked Potential Analyzers
“OAE” stands for ______
Otoacoustic Emissions Analyzer
What machine measures hearing aid function?
Hearing Aid Analyzers
A sound booth with two 4 “ walls separated by 4” of air is referred to as _________ construction
Double Walled
Which type of sound booth has less attenuation (single or double walled)?
Single Walled
