Hear me out
Some examples are adding or enlarging a vent, switching to a more open dome, and decreasing the low frequency gain for high level sounds.
What are solutions to occlusion?
These types of fitting methods are used for non-linear, compression hearing aids.
Suprathreshold Fitting Algorithms
These depend on spatial separation of the noise and signal.
What are directional microphones?
This is the loss of perception of sound signal to the brain.
What is auditory deprivation?
This should not exceed patient's threshold of discomfort.
What is OSPL90?
The most recent validated prescriptive measure on the market.
What is NAL-NL3?
Acoustical, mechanical, and electronic are three types of this.
What is feedback?
Source of sound can be localized in these
three spatial dimensions.
What is the vertical plane, near-far-distance, and horizontal plane (azimuth)?
This should be at least 2 times higher than the highest frequency component you want represented in your signal.
What is Nyquist rate/sampling rate?
What is DSL?
Notch Filtering and Phase Cancellation are two main approaches to this.
What is feedback cancelation?
According to this theory, sound is localized primarily by two cues: Interaural Level Difference and Interaural Timing/Phase Difference.
What is the Duplex Theory?
Not included in AAA's 2006 Guidelines for the Audiologic Management of Adult Hearing Impairment. (Name two)
What are amplification for subclinical hearing loss, wireless connectivity/smart apps, DTC/OTCs, and alternative service delivery models (DTC, Telehealth)?
A measure that estimates how much speech a person can understand, often used by audiologists to quantify the effects of hearing loss and the effectiveness of hearing aids.
What is speech intelligibility index (SII)?
This reduces gain for very soft input levels such as a refrigerator or air conditioner.
What is expansion?
Primarily used for low frequency localization
(up to roughly 1500Hz).
What is Interaural Time or Phase Difference (ITD or IPD)?
Adverse conditions and poorer working memory are indications for this compression speed.
What is slow-acting compression?
This contains same compliance volume of air of the median adult ear canal (not including the earmold).
What is a 2cc coupler?
Abnormal loudness growth and reduced dynamic range commonly associated with sensorineural hearing loss.
What is loudness recruitment?
A BAHA (surgical or non-surgical), a CROS, and a cochlear implant are treatment options for this.
What is Single Sided Deafness (SSD)?