Verifit
®
User's Guide Version 4.8 © November 2016
Sound level meter using manual control
When set for a stimulus level of 0 dB (off), the Manual control mode allows the Verifit to be used as a sound
level meter. Sound at the test box reference microphone and the coupler microphone may be analyzed by 1/12th
octave, A-weighted or C-weighted filters. A and C-weighted measurements are limited to frequencies above 100
Hz and the averaging time and update rate are 384 ms.
1. Open the home menu using the right mouse button. Select [Manual control] from the Test box list.
2. Click on the [Level] button and select 0 dB stimulus level from the drop-down list.
3. Click on the [Filter] button and select 1/12th octave, A-weighted, or C-weighted from the drop-down list.
4. For 1/12th octave filter, click on the [Frequency] button and select the desired frequency from the drop-down
list.
5. Click on the [Start test] bar to start the test. [Start test] changes to [Stop Test]. To stop the measurement,
click on [Stop test]. You may change Level and Frequency without stopping the test.
NOTE: Microphone extension cables (VA-131 & VA-133) are available from Audioscan. Standard audio
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