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R o o m
c o r r e c t i o n
• If you are using a C61R, G61R, or G68 Digital Surround
Controller connect the SPL meter or microphone to the analogue
input A8 (L).
• If you are using an 861 Reference Digital Surround Controller
connect the SPL meter or microphone to the analogue input you
specified in the Options dialogue box.
• Position the SPL meter or microphone at the listening position
and, if you are using an SPL meter, switch it on.
When using an SPL meter, the C weighting must be used. The 90dB
range is recommended unless the loudspeakers measured less than
75dB SPL during the calibration, in which case the 80dB range is
recommended.
To run the Auto Build procedure
• Click the Start... button.
A countdown dialogue box will give you time to leave the room:
A test tone will then be presented to each loudspeaker in turn
for each of the distinct layouts defined in the digital surround
controller configuration file.
Depending on the number of channels and layouts in your
configuration this may involve up to 24 tests and take up to 20
minutes to complete.
The Room correction page shows information about each test
and a progress bar indicates the percentage completed:
When the measurements have been completed the following
dialogue box allows you to apply the room correction profiles:
• Click the Yes button to assign an appropriate profile to each
preset.
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