EXAM
Shorter Canal Length gives you ? - ANSWERS-Less Lows
Longer Canal Lenghts give you? - ANSWERS-More Lows
Smaller bore diameter gives you? - ANSWERS-Less Highs
Larger bore diameter give you? - ANSWERS-Less Lows
What is the standard tube size? - ANSWERS-13
What is the standard Canal Length for H.A. - ANSWERS-0.710"
Contra-lateral Vent - ANSWERS-Intersects transmission to control
feedback. Used with BTE
Sampling rate - ANSWERS-has a direct bearing on Frequency.
Example: sampling rate of 16kHz has sinewave of 16,0000.
Size of ear canal - ANSWERS-1 inch to 1 3/8 inch long.. .7 cm or 1/4
inch diameter (like tip of a lead pencil)
, Size of ear drum - ANSWERS-9mm (1/4 inch high 3/8 inch wide size
of hole made by paper punch)
Alaising - ANSWERS-an effect that causes different signals to
become indistinguishable (or aliases of one another) when sampled.
Central Deafness - ANSWERS-hearing loss or impairment resulting
from defects in the central nervous system (as in the auditory cortex)
rather than in the ear itself or the auditory nerve—compare
conduction deafness, nerve deafness. Damage or disorder within brain
stem, tumor or abscess
Monomeric Spots - ANSWERS-Healed holes in the Eardrum -
Generally no loss
calibration requirements - ANSWERS-Calibrated annually
Daily biologic checks
significant air-bone gap - ANSWERS-a difference of 15 decibels or
more between the higher air conduction and the lower bone
conduction pure tone thresholds at 2 or more succeeding octave
frequencies of 500 Hertz through and including 4000 Hertz.
An advertisement violates Section 651 of the Code when it:. -
ANSWERS-(1) Is not exact, and any conditions or other variables to
an advertised price are not disclosed.