Hearing Loss Simulation (Hls) - Interacoustics Affinity 2.0 Additional Information

2.0
Affinity Additional Information
1.7.8

Hearing Loss Simulation (HLS)

The HLS offers a simulation of the hearing loss through the audiometric headphones or the high frequency
headset and is primarily aimed at the family members of the hearing impaired. It is a valuable tool as a
hearing loss in many families may result in frustrations and misunderstandings. Knowing what the hearing
loss actually sounds like gives an impression of what the hearing impaired goes through every day.
Required Items:
•
2.0
The Affinity Hardware
•
Licensed AC440 Audiometry module within your Affinity
•
Headphones or a free field speaker
•
A microphone, CD player
Test Procedure:
1) Open the AC440. To perform the HLS counselling, an audiogram is needed. You should therefore
start by performing Air Conduction Audiometry (as described in section 1.6) or retrieving an old
audiogram in the List of historical sessions.
2) When an audiogram is present, enter the HLS screen by selecting Menu | Tests | HLS.
3) Select headphones or inserts in the channel 1 output dropdown list.
4) Select CD, Microphone or Wave files in the channel 1 input dropdown list.
If using CD press play on the CD player, and if using wave files you can Browse and play them in the
bottom of the screen.
5) Before mounting the headset on the friend or relative explain the audiogram. Use examples of what
the hearing impaired may not be able to hear anymore such as some speech sounds and other
sounds that are likely to occur in everyday surroundings.
6) It may be advisable to start the simulation session by letting the relative listen to the input signal with
his or her natural hearing for a moment. This is likely to have a strong effect when having to compare
with the simulation. The procedure is, however, up to you and the defaults can be setup in the AC440
setup (see section 1.7.2.7).
11
HLS requires an additional software license.
12
HLS using a CD player is only available on the Affinity
11
12
, or wave files
2.0 2.0
/Equinox
2.0
hardware with HLS functionality
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