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Exam (elaborations)

Amp Exam 1 (100% Accurate)

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2 purposes of hearing aid standards correct answers 1. To verify that hearing aids are functioning properly 2. To verify that hearing aids are functioning appropriately Input correct answers The acoustic signal entering the hearing aid. Expressed in dB SPL Output correct answers The amplified signal that is delivered to the ear. Expressed in dB SPL Gain correct answers The amount of amplification applied to the input signal. Expressed in dB Input can be ______ correct answers Noise, speech, or pure tones Formula for output correct answers Input + gain Formula for gain correct answers Output - input Additional standards for compression HAs correct answers Attack and release times Input/output functions for different input levels Different methods for compression HAs correct answers Different levels for different tests Different interpretation of Equivalent Input Noise What do 2cc couplers allow for correct answers Repeatable measurements HA2 coupler is for correct answers BTE with earmold HA1 coupler is for correct answers Custom products (CIC, ITE) and RICs What must you know to calculate gain? correct answers Input Purpose of OSPL 90 correct answers To know what the hearing aid will do when it starts to saturate Standard measurement hearing aids (7 tests) correct answers OSPL-90 High Frequency Average Full On Gain Frequency Response Reference test Total Harmonic Distortion Equivalent Input Noise OSPL 90 is a quick estimate of ____ correct answers The power of the hearing aid

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