Toa M-864D Ver.2.2.0 - Manual (Page 69)

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[arC operating procedures]
Before Starting Operation:
Set the external equipment sound volume and other settings to actual usage conditions to ensure that sound
can be amplified at an appropriate volume level.
Note
Connect the microphone to MONO INPUT 1.
Connect the unit to a PC to allow communications between the two.
Measurements for all ARC boxes connected to the MONO OUTPUTs to which the MONO INPUT 1 is assigned
are performed simultaneously.
Refer to the separate M-864D instruction manual for details about ARC measurement such as an installation
example of the measuring microphone.
Step 1. In the Matrix setting screen, assign the MONO INPUT 1 to the MONO OUTPUT connecting the target
ARC box for measurement.
(Example when ARC 1, 2, and 4 are targeted for ARC settings)
Step 2. Click the ARC box targeted for the ARC setting to open the pop-up sub-view.
Step 3. Make the following measurement settings on the Detail Settings
panel: Measurement start and stop frequencies, Sweep time, and
Output level compensation.
Step 4. Install the measuring microphone.
Step 5. Click the Measurement button on the Detail Settings panel to display
the ARC measurement dialog. Then, click the Measurement start
button.
The ARC measurement is started.
The progress status of the measurement is displayed on the screen
as shown in the figure below:
Measurement
Start button
Stop button
Note: To stop before the operation is complete, click the [Stop] button.
Upon measurement completion, the filter parameter is automatically set, displaying the frequency
characteristics in the filter control field.
The measurement target ARC boxes are automatically grouped.
If any of the ARC boxes had been grouped before measurement, this group setting is automatically
canceled at ARC measurement.
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