AAO-HNSF Certificate Program for Otolaryngology Personnel

Bone Conduction Masking

Effective masking is still 15 dB

500 Hz 250 Hz

1k Hz

2k Hz

4k Hz

Effective Masking

15 dB

15 dB

15 dB

15 dB

15 dB

Occlusion Effect

20 dB

15 dB

10 dB

0 dB

0 dB

35 dB

30 dB

25 dB

15 dB

15 dB

Start

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

10

SRT and Word Recognition Masking

40 dB- set and forget!

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

11

Review Example

• Do I need to mask for pure tones? o Headphones? o Inserts? • Which ear gets the masking noise? • Do I need to mask for bone?

AAO-HNS/F

Certificate Program for Otolaryngology Personnel Workshop

12