Basic Audiometry

17 February 2022
10 mins
The purpose of this document is to provide a quick guide for basic functions of the AC440 Audiometry modules for the Callisto™ Suite. This quick guide will focus on Tone Audiometry as well as a basic introduction to the various icons, tools and menus available.

Starting up the AC440 Module

  1. Launch the Callisto™ Suite from Noah or OtoAccess®.
  2. Click on the AUD tab on the upper right hand side of the screen.
  3. Click on the icon to launch the tone audiometry screen, if Tone audiometry is not the default screen. 
  4. Select the desired Audiometry protocol from the “Protocols and Sessions” drop down list.


Conducting Tone Audiometry 

  1. Choose the transducer type.
  2. Choose the Stimulus type.
  3. Choose the test frequency :

    • PC Keyboard: right/left arrow keys.
    • Mouse mode: Left/Right arrow buttons.
  1. Choose the intensity:

    1. With PC keyboard: use the up/down arrow keys.
    2. Mouse mode: Up/Down arrow buttons.
  1. Presenting the stimuli:

    1. PC Keyboard: press on the space bar or left Ctrl button.
    2. Mouse mode: hover the mouse over the Stimuli button.
  1. If masking is necessary:

    • Turn on masking in Channel 2 by ensuring that the desired transducer is selected for non-test ear.
    • Ensure that the word “Masking” is highlighted in orange.
    • Choose “Rev” to present the masking noise continuously.
    • It is also possible to turn on Automasking or Masking help[1].


Navigation: Tools and functions 

  1. Menu: Click on Menu to access other Audiometry Special tests by going to Menu│Tests.
  2. Protocols and Sessions: Choose the desired test and choose the session to display. Current Session is always the active session. Highlight and select older sessions to be displayed on the active audiogram for comparison.
  3. Buttons: Access various tools and features for Tone Audiometry, including High Frequency Audiometry, Multifrequency Audiometry, Automasking, Masking Help and many others.
  4. Talk and Monitor: activate/deactivate the Talk Forward and Monitor during testing.
  5. Counseling Overlays: Activate/deactivate useful tools when counseling patients about hearing loss.
  6. Test symbols: Choose from the available symbols to display on the audiogram, now also including the tinnitus symbol.
  7. Comments/Report Editor: Use this feature to add comments relevant to the session.
  8. Click on to collapse/minimize the Tools and Function task bar.
  9. Right Click on the menus (except on protocol and sessions) to show/hide the various tools and function.



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