BK-7m_OM.pdf - Roland

Backing Module BK-7m
Menu options
r
72
To edit the SMF/Style Compressor parameters, use
[MENU] button ‰ “Mastering Tools” ‰ “SMF/Style Compressor”.
1. Select an SMF song or a Music Style and
start playback.
2. Set the “Switch” parameter to “On” to activate
the compressor.
The compressor is now active and will affect SMF
song or Music Style playback. (Select “Off” to switch
the compressor back off.)
3. Use the [CURSOR÷VALUE] dial to select the
“Preset” parameter, then press the dial.
4. Rotate the [CURSOR÷VALUE] dial to select
one of the available presets, then press the
dial.
The available presets are:
1. Hard Comp
2. Soft Comp
3. Low Boost
5. If none of the preset memories contains the
settings you need, use the [CURSOR÷VALUE]
dial to select and set the following parameters:
Parameter Setting Explanation
Level 0~127 Use this parameter to set
the compressor’s input level.
The higher the value, the
stronger the three frequency
bands are compressed.
The value you set here is
added to the “Level” settings
of the three bands. If you set
this parameter to “0”, the
compressor has no effect on
the output signal.
Gain –12~0~
12dB
4. Mid Boost
5. High Boost
6. Standard
7. User
Use this parameter to correct
the level at the compressor’s
outputs. If the
settings of the remaining
parameters lead to a significantly
lower level, select a
positive value. If your settings
lead to a significantly
higher level, select a negative
value. “0” means that
the level is neither boosted
nor attenuated.
High/Mid/Low: Because “Attack”, “Release”, “Threshold”,
“Ratio” and “Level” are the same for each band, we will
only discuss them once. As you see, each of the three frequency
ranges has its own set of parameters that allow
you to specify their behavior.
Parameter Setting Explanation
Attack 0~100ms Use this parameter to specify
how fast the compressor
of the band in question
should start processing the
signal once the level of that
band exceeds the “Threshold”
level. Choose a smaller
value if you prefer a compression
similar to that of
FM radio stations. Higher
values may yield a “snappier”
or “funkier” sound.
Release 50~
5000ms
This parameter allows you to
specify how fast the compressor
of the corresponding
band should stop working
when the signal level drops
below the “Threshold” value.
Threshold –36~0dB This parameter allows you to
set the level the frequency
band (“High”, “Mid” or
“Low”) must reach to trigger
its compressor. The lower
the value, the more noticeable
the compression will be.
Ratio 1:1.0~
1:INF
Level –24~
+24dB
Split High 2000~
12000Hz
Split Low
80~800Hz
Use this parameter to specify
how strongly the level
should be reduced when the
band’s level exceeds the
“Threshold” level. “1:2.0”, for
example, means that level
values above the “Threshold”
level are halved. “1:INF” is
useful if you set “Threshold”
to “0dB” or thereabout. This
produces a limiter effect,
which means that no signal
level will ever exceed the
“Threshold” value. This may
help you protect the speakers
of the PA system etc.
This parameter allows you to
establish the desired mix
among the three compressor
bands. Choose a negative
value to decrease the level,
or a positive one to increase
it. Choose “0” for a band
whose level is OK as is.
These two parameters specify
the frequency where two
bands are separated. The
compressor has three bands,
and so there are two crossover
frequencies you can
set: “High” between the
“Mid” and “High” ranges;
and “Low” between the
“Mid” and “Low” ranges.