AAO-HNSF Certificate Program for Otolaryngology Personnel
When to Mask for Speech? • Interaural attenuation values:
–Speech recognition threshold (SRT) – 40 dB –Speech reception score (SRS) – 40 dB
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AAO-HNS/F
Certificate Program for Otolaryngology Personnel Workshop
22
How Do We Mask? • Hood (plateau) Method
–Find unmasked threshold –Add effective masking –Re-establish threshold while masking –If there is no change, increase masking by 10 dB
AAO-HNS/F
Certificate Program for Otolaryngology Personnel Workshop
23
Hood Method (Continued)
• Re-establish threshold • If there is no change, increase masking by 10 dB • Re-establish threshold • If there is no change, record as threshold
AAO-HNS/F
Certificate Program for Otolaryngology Personnel Workshop
24
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