How to perform the TEN test with Equinox Evo

Launch the Equinox Suite and ensure you are in the AUD module (click on the AUD tab on right hand side of the screen if not).

Choose TEN Test from the Protocols and sessions drop-down menu.

Select the desired transducer and ensure that the stimulus is directed to the same ear in channel 1 and channel 2. If testing the right ear, select Phone right for both channels.

Stimulus/Input: Tone for channel 1 and TEN for channel 2.

Set the masking to Rev to have a continuous masking signal. To stop the masking, click on Man or hover the mouse over the Stimuli button.

For frequencies where the hearing loss is up to 60 dB HL, set the TEN level to 70 dB.

For frequencies where the hearing loss is 70 dB or more, set the TEN level 10 dB above the audiometric threshold at that frequency. For example, if the audiometric threshold is 75 dB HL, set the TEN level to 85 dB HL.

If the TEN is too loud, or if the maximum TEN level of 90 dB HL is reached, then set the TEN level equal to the audiometric threshold. This should still give a definitive result.

Conduct a threshold search using the traditional method for air conduction audiometry.

Repeat for each frequency where a dead region is suspected.

A dead region at a particular frequency is indicated when:

• A masked threshold is at least 10 dB or more above the level of the TEN.
• And a masked threshold is at least 10 dB above the non-masked threshold.

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