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Auditdata Measure

What is Threshold Equalizing Noise (TEN)?

TEN test was developed to provide clinicians with a quick and easy way to identify cochlear dead regions utilising a special masking noise.

TEN Test

Why use TEN?

Pure tone signals can be heard in adjoining hair cells if the signal is loud enough; as a result of this it is not possible to use Pure Tone Audiometry to identify dead regions in the cochlea. Identifying dead regions in the cochlea is important for clients who have a severe to profound hearing loss, those with a steeply sloping hearing loss and those with extremely poor speech discrimination. Rehabilitation of the hearing loss as well as provision of more accurate information for hearing aid fittings are just some of the reasons that TEN testing should be performed.

How to perform TEN?

Presenting a pure tone sound through Channel 1 and a continuous masking noise through Channel 2. The intensity levels should be set in accordance with the following rules:

  • For frequencies where hearing loss up to 60dBHL the TEN level should be set to 70dB
  • For frequencies where hearing loss is 70dB or more the TEN level should be set to 85dBHL.
  • If the TEN sound is too loud or the maximum TEN level is reached of 90dBHL then the level should be set to the audiometric threshold of the frequency.
Threshold Equalizing Noise (TEN)

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