Bulk Dump; Cascade Connection; Bass Cut Filter; Blank Parameter Chart - Roland VM-C7100 Owner's Manual

Band pass filter (BPF)
A filter that allows only a specific frequency band to pass.

Bass cut filter

A filter that cuts unwanted low-frequency sounds. It can be used
to eliminate the "pop noise" that occurs when wind or breath is
blown into a mic at close range. This simulates the bass cut switch
that is found on some mics.

Blank parameter chart

A sheet of paper used to write down parameter settings. It
contains the parameter names in an organized layout, with blank
areas in which to write the value of each setting.
Parameter
BPM, beats per minute
The number of beats in one minute (usually quarter note).

Bulk dump

The action of transmitting internal settings of a device as MIDI
data using system exclusive messages. This allows internal
settings to be transmitted to another device, or saved on a
sequencer or computer.
Bus
A signal route within a mixer that is shared by signals from two
or more channels. This system provides a Main bus which collects
the signals that are output from the main output, a Cue bus that
is used mainly to collect signals for monitoring, and twelve Flex
buses that can be used for a variety of purposes.
Flex bus

Cascade connection

Connecting a second identical unit to increase the number of
input channels, effect processors, etc. On this system, a VM-24C
(cascade kit: sold separately) can be used to connect two
processors and double the number of inputs in the entire system.
In general, connecting the output of a device directly to the input
of another device is referred to as a "cascade connection."

Channel link

A function that allows adjacent odd and even-numbered channels
(1 and 2, 13 and 14 etc.) to be joined as a pair. It is convenient to turn
this on for channels that control a stereo signal, since you can avoid
having to manually make the same settings for both channels.

Channel message

A collective term for all MIDI messages that are used to transmit
musical performance data for specific channels. They include
messages such as note-on/off, control change, pitch bend, and
aftertouch. This system uses channel messages to modify fader
settings, to display the level meters, and to sound a metronome.
MIDI
Checksum
Data included within a MIDI system exclusive message that
allows the receiving device to check whether the message was
received correctly. The checksum is a hexadecimal number that is
calculated from the values of the addresses or data (or size) using
a prescribed formula, and is attached to the end of each exclusive
message (immediately before F7H: End Of Exclusive). For details
on calculating the checksum, refer to the MIDI implementation.
System exclusive message
Chorus
An effect that adds spaciousness to the sound. It is produced by
adding a slightly time-delayed signal to the input sound, and then
cyclically modulating the delay time to create a sense of expanded
space or of multiple sound sources.
Clear
Automix data is stored temporarily in internal memory. "Clear"
will erase all of this internal memory.
Coaxial
A digital audio connector to which a coaxial cable can be
connected. Of the digital inputs and outputs of this system, S/
PDIF format "DIGITAL A" uses a coaxial connector. In contrast,
S/PDIF digital I/O jacks to which an optical cable can be
connected are referred to as "optical."
S/PDIF
Digital I/O connector
Optical

Comb filter

A frequency filter with a response curve shaped like a comb. A
filter that has a dip at regular frequency intervals (e.g., 50 Hz, 100
Hz, 150 Hz, 200 Hz,...). This is used to emphasize specific
harmonic series in a way similar to a flanger, or to remove noise
(such as power supply hum) that occurs at frequency intervals of
a specific harmonic series.
On this system, the Feedback Delay function can be used to add
a very short delay sound to the original sound, thus producing a
comb filter. By mixing this delayed sound in inverse phase with
the original signal, a filter will be produced that has peaks at each
dip point. When the delay time is set to t (msec), the frequencies
(f1, f2, f3,...fn) at which the dips will occur can be calculated by the
formula fn = 500 n/t. For example, if the delay is 10 msec, there
will be dips at 50 Hz, 100 Hz, 150 Hz, 200 Hz, 250 Hz.., while if the
delay is 1 msec, the dips will occur at 500 Hz, 1 kHz, 1.5 kHz, 2.5
kHz...
Comment
On this system, refers to the text data (memo) that can be stored
for each project. A maximum of 32 characters can be stored.
Compressor
An effect that suppresses volume fluctuations. When the input
signal exceeds a specified level (threshold), the gain is reduced as
the input signal rises, thus suppressing signal overload. The same
algorithm can also be used as a limiter (an effect that
instantaneously suppresses peaks).
Of the effects in this system, only the compressor included in
guitar multis 1–3 simulates a compact compressor for guitar, and
works differently from a limiter. (It suppresses signal overloads,
and also evens out the volume by raising low-level signals.)
Compu-mix
Another term for auto-mix, although Compu-mix often refers to
automation via a MIDI sequencer.
Automix
Glossary
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