Inter-aural attenuation

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Presentation transcript:

Inter-aural attenuation FOR AC THRESHOLDS 40 dB usually considered minimum IA for supra-aural headphones. For insert earphones: 60-70 dB FOR BC THRESHOLDS 0 dB usually considered minimum IA bone-conduction vibrators http://www.etymotic.com/pdf/erl-0006-1985.pdf 1

Is cross hearing an issue for right and left ear AC? Spreadsheet

Cross-hearing in bone conduction Only a concern when there is an ABG in the test ear. ABG of 5-10 dB not significant. Cross-hearing for BC suspected when ABGTE > 10 dB. 4

Is cross hearing an issue for right and left ear BC?