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Compression Overview: The Foundation of a Dynamic Fitting

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1.  When the signal output is greater than the maximum output of the hearing device, this results in: Peak Clipping Linear Compression Non-Linear Compression Recruitment

2.  What is another name for Compression Threshold (CT)? Input Level Compression Kneepoint (TK) Output Level Compression Ratio (CR)

3.  Which of the following is NOT an advantage of using a low compression ratio? Improved audibility of the softer components of speech Restores loudness perception May adversely affect the clarity and pleasantness of the amplified sound May be beneficial for more mild hearing losses and new hearing aid wearers

4.  Which of the following is TRUE regarding expansion? Soft sounds are amplified less than louder sounds It only applies to the strongest sounds in the environment The same amount of gain is applied dependent on the input level Ensures you are providing gain for soft level sounds

5.  Which of the following fitting formulas is linear? E-Stat NAL-NL1, NAL-NL2 DSL NAL-R