Configuring the digital surround controller without a computer
69
Calibrating the system
To help you to set up your installation to give the best possible
sound with any particular combination of associated equipment,
the 561 Digital Surround Controller includes a built-in calibration
procedure.
This calibration procedure uses test signals to present a series
of sounds, which you use to adjust certain aspects of the
system to their optimum settings.
You should work through the calibration procedure the first time
you set up your surround sound system, and whenever you want
to check the calibration, such as after changing the layout of
your room.
Using the calibration procedure
We recommend that you perform the calibration procedure
using the Meridian System Remote and from the listening
position.
As you run the calibration procedure the name of each
calibration test is shown on the front-panel display, followed by
the parameters adjusted in the test.
If your digital surround controller is connected to a television or
monitor, the on-screen display also provides additional text
explaining what to do. For information about setting up the on-
screen display refer to
Connecting video
, page 56.
Each calibration test uses a test signal designed to give the best
results.
Using a Sound Pressure Level meter
Although you can perform the calibration procedure by ear, it is
recommended that you perform the tests using a Sound
Pressure Level meter. These are available fairly cheaply from
Tandy/Radio Shack, or your Meridian dealer may be able to lend
you one.
Set the Sound Pressure Level meter to C weighted, and Slow.
Take readings with the meter at the listening position, pointing
vertically. You should hold the meter with an outstretched arm to
minimise reflections from your body.
