Operating Instructions - Audiometry; Tone Audiometry Test Screen - Interacoustics AD528 Instructions For Use Manual

3.4 Operating instructions – audiometry
The audiometry module contains the following tests, which can be selected from the list of tests.
Tone tests: Tone, Weber, Stenger, SISI, ABLB, Tone in noise
Speech tests: Speech, Speech in noise, Channel 2 speech, SNR
Auto tests: Hughson-Westlake, Bekesy
Please note that the tests available in this list depend on the license configuration.

Tone audiometry test screen

The Tone audiometry test screen is used for tone audiometry via normal head phones or insert phones,
bone conduction, or free field speakers. Below is a description of the functionalities in the tone audiometry
test screen.
Tone
1 Use the tone switch to present a sound to the client. The stimulus area will light up when a sound is
being presented.
2 This visualizes the dial setting of the stimulus intensity which can be changed by rotating the wheel
of channel 1.
3 This visual indicator is shown when the patient presses the patient response.
4 The measurement type (HL, MCL, UCL) is shown as well as the presentation type, e.g. Tone,
Stenger, Weber. The test frequency is also shown.
5 The symbol indicates the channels are in sync. Thereby channel 2 will follow the adjustment of
channel 1.
6 This visualizes the dial setting of the intensity of channel 2, e.g. masking, which can be changed by
rotating the wheel of channel 2.
7 The stimulus area will light up when a sound is being presented in channel 2, e.g. when masking is
active.
Display of results
1 Channel info
2 PTA
3 Intensity scale
4 Frequnecy scale
5 Maximum output
6 Cursor
D-0121151-B – 2018/11
AD528 - Instructions for Use - EN
Indication of ear side and stimulus type for channel 1 and 2, respectively.
Indicate the Pure Tone Average (PTA), set up in Tone settings.
The intensity scale ranging from -10 to 120 dB HL.
The frequency scale ranging from 0,125 kHz to 8 kHz.
The darker area indicates the maximum intensity range for the selected
transducer. The range can be extended by pressing the hardkey Ext. range.
The cursor in the audiogram visualizes the currently selected stimulus frequency
and intensity for channel 1 and channel 2, respectively.
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