3 Installation
15
Fig. 9 Typical System Interconnection Sequence.
External Signal Processing
General Concept
The Multisonic Imaging System is
easily implemented with various
types of signal processing
equipment. The number of
channels needed depends on the
specific application.
Figure 9 shows a typical signal
processing sequence for most
applications. Generally, signal
processing which is primarily
intended to correct or modify the
program material should be
ahead
of the M86. Signal processing
intended to correct or protect the
loudspeaker systems should
normally be
after
the M86.
If the discrete center or sub inputs
are used, any full-mix processing
(such as overall program
compression) will need to be
immediately
after
the M86.
Equalization
Program equalization, such as one
might use to optimize or correct the
sound of recorded program
material, is normally placed right
after the signal-source equipment.
This allows the use of standard
stereo (two-channel) equalizers for
the stereo inputs, or mono
equalization for the center and sub
discrete input sources. For stereo
sources it is important that the two
channels of equalization are set to
match each other; otherwise
imaging distortion will result.
Compression
A compressor may be used to limit
the dynamic range of the sound for
louder or more consistent
operation. To prevent imaging
distortion of stereo sources, it is
important that the compression
uses linked channels so that the
gain reduction of both channels
always matches.
Loudspeaker Equalization
If the loudspeaker systems need
equalization, then an equalizer
channel is needed for each
