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D-Command Guide30

System Calibration

Recalibrating D-Command Faders

If a fader on a D-Command Unit shows response problems,

you can recalibrate the faders with the Recal command in Util-

ity mode. See “Recal” on page 119 for details.

Calibrating the Output Meters

You can calibrate the output meters on the Main Unit meter

bridge from XMON, in order to match metering levels in

Pro Tools with metering levels of external sources. The exam-

ple below uses a Digidesign 192 I/O as the reference source.

To calibrate the D-Command output meters:

1 Set the reference level of your 192 I/O according to the in-

structions in the 192 I/O Guide.

2 With the 192 I/O analog output connected to the XMON

Main Input, send a calibration tone to the D-Command Main

Outputs, and note the output level on the D-Command

meters.

3 Disconnect the 192 I/O analog output from the XMON

Main Input and connect it to an XMON Stereo Input.

4 Activate the corresponding Alt Output.

5 Adjust the trim pots on the back panel of the XMON until

the output level for each channel on the D-Command

matches the level displayed for the Main Output.

6 When you are finished, reconnect the 192 I/O analog out-

put to the XMON Main Input.

Calibrating SPL Indication on the Monitor Section

The D-Command Monitor section lets you display output

level in dB or dB SPL. You can calibrate the SPL display to re-

flect the sound pressure level at the mix position. See “Calibra-

tion Mode Switch” on page 95.

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DigiDesign PRE Especificaciones Pagina 36