Specifications
2 The Multisonic Imager
8
Fig. 3
M86 Front Panel
Fig. 4
M44 Front Panel
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5 6 7 8 9 10 11 10 12 10 13 10 14 15
1 2
6 7 8 9 10 11 10 12 10 13 15
Control Functions: Front Panel
Refer to
Figure 3 (M86) or 4 (M44)
.
1. Stereo Input LEVEL control:
Adjusts the
stereo-input gain and overall volume level; can be
used to compensate for different incoming signal
levels. All outputs levels will be affected
simultaneously. The Discrete Center and Sub Inputs
are not affected by this; they remain at unity gain.
The 5.1 inputs are not affected either except when
the ‘5.1 to Multisonic button’ is pressed; then only
the left and right inputs from the 5.1 source are also
affected by the Stereo Input LEVEL control.
2. Stereo Input C/S IMAGE BALANCE control:
This will affect the relative loudness balance of the
center and side loudspeakers, and hence the
balance of those localized components in the mix. It
can be used to focus the sound into a wider or
narrower soundstage, or for ‘shuffling’, or altering
the mix, making the center portion louder or softer
compared to the left and right sides. It sets the
Multisonic matrix parameters which determine the
separation and width of the stereo image.
When set to ‘Diff’, the result will be center (or vocal)
cancellation, except for low bass; when set to
‘Center’, the result will be center (or vocal)
enhancement; at the ‘Mono’ setting, the left and right
sum together which yields a maximum-center effect.
3. Stereo Input SURROUND control (M86 only):
Adjusts the send level of the derived surround signal
for convenient balancing of the derived surround
with the front loudspeakers. Once this control is set,
the derived-surround signal will track the source
level and should not need further adjustment unless
the derived surround channels are to be enhanced
or attenuated. The signal at the Discrete Surround
Input is not affected by this control.
4. 5.1 INPUT LEVEL control (M86 only):
This
controls the level of the 5.1 input source. The 5.1
input level can be balanced with other signals such
as those connected to the left/right inputs, so that
when different sources are used, no gain
compensation is necessary.
5. 5.1 to MULTISONIC switch (M86 only):
When
pressed, this routes the left and right channels at
the 5.1 input to the Multisonic processor, so that a
left-center-right presentation is derived from them.
The 5.1 input’s center, sub, and surround signals
are routed normally.
This function is extremely helpful for 5.1 mixes
which lack an effective center signal. It’s essential
for 5.1-format videos which only provide a stereo or
four-channel audio mix.
It’s generally useful for 5.1 movies, where typically
the dialog is in the center but the music is a simple
left-right mix. Note that the Multisonic derived center
signal is added to the source’s discrete center
signal. This provides excellent compatibility with
virtually all 5.1 sources.
6. Sub Input LPF switch:
A low-pass filter is
applied to the discrete subwoofer input
signals—both the Discrete Subwoofer XLR input
and the 5.1 (RCA) Subwoofer input. This is a fourth-
order Linkwitz-Riley crossover filter at 95 Hz. It can
be left off to send a full-band effect signal to the