Audioscan Axiom User Manual download pdf (Page 42)

Axiom

User's Guide Version 1.8



May 2015

2. Highlight the desired HFA/SPA test frequencies and Click on it to select.

To change the frequencies for attack and release time measurements:

In the list of available frequencies, click on the frequencies to be used to measure attack and release time.

Click on to save your selections and exit the menu.

Test box calibration facts

Test box microphone calibration establishes a correction curve for the uncalibrated test box reference

microphone by comparison with the factory calibrated coupler microphone. It may be performed as often as

desired but will be invalidated at 12 am the following day or at 12 am the following Monday, depending on the

choice of Daily or Weekly calibration interval. After the calibration has expired, the message window will turn

blue and you will be prompted to calibrate whenever you attempt a test that uses the test box microphones.

Your calibration curve should be similar to the one shown but may be at a different level. It should remain stable

over time. Irregularities in the calibration curve may be the result of not properly aligning the microphones. See

Calibrating test box reference microphone.

Calibrating test box reference microphone

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Audioscan Axiom User Manual Page 42