Multi Frequency Audiometry - Interacoustics Affinity 2.0 Additional Information

2.0
Affinity Additional Information
1.7.2

Multi Frequency Audiometry

Multi frequency audiometry lets the clinician test more frequencies than the traditional audiometric test
frequencies. This may be useful when dealing with steeply sloping hearing impairments as it becomes
possible to obtain a more precise measure of the slope of the hearing loss. It is also helpful in the evaluation
of tinnitus as is provides the option to match the tinnitus.
Required Items:
•
2.0
The Affinity hardware
•
Licensed AC440 Audiometry module within your Affinity
•
Headphones or Insert phones
•
A patient response button
Note: If doing Multi Frequency testing in the high frequencies (8-20 kHz) a high frequency headset must be
used.
Test Procedure:
1) Open the Affinity Suite through your patient management system, Noah or OtoAccess™.
2) Select the AUD Tab and If needed select a protocol from the List of Protocols.
3) To perform a multi frequency audiometry, click the MF button
check that the multi frequency settings are in accordance with your preference in the AC440 setup
(see section 1.7.2.2).
4) Conduct high frequency audiometry using the normal air conduction audiometry method (see section
1.6 above for details). The cursor will jump in small frequency steps during the test providing you with
multiple thresholds and a detailed curve.
Note: Evaluation of tinnitus can be used for both the purpose of identifying the nature of the sound the
patient is experiencing and the purpose of masking the sound. Instruct the patient that you will now try to
reproduce the exact sound that they are experiencing as precisely as possible. Start by finding the frequency
and subsequently finding the amplitude using 5 dB steps. This way the patient only needs to concentrate on
one thing at the time. After replicating the tinnitus, present a noise (NB) to the ear where the sound is
experienced. Increase the noise in 5 dB steps until the patient claims that the tinnitus is masked (Nielsen &
Carver 1997).
5
Multi frequency audiometry is only available on the Affinity
purchased, the button is greyed out.
5
2.0
hardware with Multi Frequency functionality
2.0 2.0
/Equinox . The test requires an additional feature for the AC440. If not
in the front screen. You may want to
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