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Glossary
OSD
On-Screen Display, which the 565 can
superimpose on a composite video signal
to give information about the state of the
system, and to help during configuration.
PCM
Pulse Code Modulation, the method used
to encode music digitally, as used on
audio CDs.
Preset
A DSP decoding option in the 565. You
can create user-defined presets based on
the built-in presets, and with specific
parameter values; see Defining your own
presets, page 31.
Source
An input to the system, such as CD or TV.
The Meridian 500 and 800 Series provide
12 named sources, corresponding to the
names of the 12 source keys on the MSR.
In the 565 you can choose the logo
displayed for each source, and the input
used for it.
SPL
Sound Pressure Level, a physical
measurement of the level of sound at a
particular location which can be obtained
using an SPL meter.
Steered surrounds
Surrounds which have individual signals
steered to them by the digital surround
processor’s steering matrix.
Surround
A sound reproducing system with more
than two loudspeakers, and usually with
speakers behind or to the side of the
listener.
THX
Additional processing that follows Dolby
Pro Logic Surround decoding to give a
more faithful reproduction of cinema
sound in the home.
Trifield
A music decoding system designed to
extract centre and surround signals from a
conventional two-channel stereo source.