If the audiometer is ‘supported’ by Audiqueen, go to the appropriate section.
Connected audiometers are devices whose proprietary software connects to Audiqueen. This is the case for most of Interacoustics, Otometrics, Resonance, Inventis, Madsen devices. In these cases, Audiqueen does not control or steer the device, like in supported audiometers, but it opens their suite and receives the results in a seamless manner. It is assumed that the audiometer output for speech and tonal audiometry is already correctly calibrated before the usage of Audiqueen. If not, please contact your audiometer supplier to calibrate your device.
Generic devices are certified audiometers that don’t connect to Audiqueen. They are basically used as stand-alone devices and the results are manually entered into Audiqueen. This said, Audiqueen still delivers the non-audiometric stimuli (wave-files for speech audiometry and A§E tests) to the AUX input of these machines.
With an unsupported audiometer, it is possible to perform all psychoacoustic tests in the Audiqueen test environment, except for tonal audiometry. The intensity will be controlled in Audiqueen with minimal adjustments to be performed on the audiometer device itself. For this purpose, Audiqueen gives instructions to the users on when and how they should make adjustment to the audiometer output. Audiqueen will ask to put the audiometer output to two possible intensities.
Example of the two possible instructions Audiqueen will give to the audiologist during testing.
Since all audiological tests, except pure tone audiometry, still require sound produced by Audiqueen to be presented through the audiometer, the connection between Audiqueen and the audiometer needs to be calibrated. This is how you proceed:
For each test, after ‘New Measurement’ , select the audio device (1) and proceed to calibration (2).
The calibration for all audio devices comprises 2 steps: (1) select the transducers and channels and (2) play a calibration signal and adjust the appropriate levels.
Click on the number in the header to select the first or second calibration step.
The first step is to select the soundcard and the transducers that you wish to have available for testing.
The second step comprises calibration of the speech input channel of your audiometer. The verification button is to double check the calibration of the total audio chain.
The recommended approach with a calibrated audiometer is to play the calibration signal and adjust the input sensitivity of the audiometer until the VU meter shows 0 dB offset. For supported audiometers, Audiqueen displays the VU meters on screen.
In the unlikely case that you prefer not to modify the input sensitivity (this may be the case if other external devices need to connect to the same aux-input), check this box and adjust the slider until the VU meter shows 0 dB offset or click the AutoAdjust button and let Audiqueen set it for you.
Please bear in mind that this will attenuate the A§E sounds and reduce the intensity dynamic range. Reducing it too far, will cause the usability to drop from optimal to suboptimal, just acceptable and ultimately inacceptable. This is indicated by the message (circle) at the bottom.
The system is correctly calibrated for Audiqueen if (1) the speech channel output of your audiometer is correctly calibrated and (2) the VU meter deviates to zero when playing the calibration sine. Click on the ‘run verification’ button to double check the calibration of the entire audio chain. Audiqueen will play three sounds at different intensities. With a sound level meter placed near the patient’s head, the user can measure the intensity in dB SPL and enter each reading.
|If Audiqueen does not confirm correct calibration, please contact your audiometer manufacturer or supplier for a calibration check.|
Important information for audiometers that are NOT calibrated in dBSPL, but rather in dB HL !!!
Audiometers are either calibrated in a dB HL or dB SPL scale for speech signals.
My audiometer is calibrated in a dB SPL scale
By default, Audiqueen is designed to present speech in a dB SPL scale. Therefore, no further actions are needed to make Audiqueen compliant to your audiometer device. The default intensity at which your audiometer output intensity should be set is 70 dB SPL. For louder stimulation (extended range), Audiqueen will ask to put your audiometer to 90 dB SPL.
We believe it is good practice to present speech signals in dB SPL. The reason for this, is that Audiqueen offers the possibility to have multiple speech tests, which can have slightly different RETSPL values depending on the language and difficulty of the test. If possible, ask your audiometer manufacturer or supplier to calibrate your device in dB SPL for speech signals.
My audiometer is calibrated in a dB HL scale
To make Audiqueen and its instructions to the user compliant to the dB HL scale of your audiometer, please perform the following steps:
- Go to the speech audiometry environment and click on ‘New Measurement’.
- Open the ‘Speech Audiometry Settings’ by clicking on the icon in the top-left corner.
- Click on the checkbox to present speech in a dB HL(!) scale and add the correct HL-to-SPL offset which is used by your audiometer device. Then press OK.
This will change the intensity presentation to a dB HL(!) scale in speech and speech-in-noise audiometry. Moreover, the instructions that Audiqueen gives to the user will also be modified to that scale.
Please note that the intensity scale only changes in the speech and speech-in-noise audiometry module. However, the instructions that Audiqueen provides for your audiometer will be adjusted for the dB HL scale of your device across all tests. For more information on the intensity scales of the psychoacoustic tests in Audiqueen, see section 4.9: Intensity scales in Audiqueen.
The audiometer output settings as requested by Audiqueen can be
monitored during testing by hoovering over the blue information icon.