Roland SI-24 用户手册
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Glossary
Condenser microphone
A type of microphone that applies the principle of a
condenser. It has excellent high-frequency response, and
allows more subtle nuances of sound to be captured. This
type of microphone requires external, phantom power
unless it has its own battery power.
condenser. It has excellent high-frequency response, and
allows more subtle nuances of sound to be captured. This
type of microphone requires external, phantom power
unless it has its own battery power.
Dynamic microphone
A type of microphone that uses the same principle as an
electrical generator. It operates without a power source.
The most common types are quite durable, and are widely
used as vocal and instrument mics.
electrical generator. It operates without a power source.
The most common types are quite durable, and are widely
used as vocal and instrument mics.
IEC
The signals that are transferred via the digital input/
output of this device comply with the IEC60958 and
IEC958 (consumer) formats.
output of this device comply with the IEC60958 and
IEC958 (consumer) formats.
Impedance
The total resistance of an electrical circuit to an alternating
voltage such as audio, expressed in units of an Ohm (
voltage such as audio, expressed in units of an Ohm (
Ω
).
When transmitting a signal, the output impedance of the
transmitting device must match the input impedance of
the receiving device. If not, problems such as distortion,
noise, and lowered signal level can occur.
transmitting device must match the input impedance of
the receiving device. If not, problems such as distortion,
noise, and lowered signal level can occur.
On the SI-24, a high-impedance input jack is used for
directly connecting a guitar or bass.
directly connecting a guitar or bass.
MIDI
MIDI stands for Musical Instrument Digital Interface. It is
a worldwide standard that allows electronic musical
instruments and personal computers to exchange musical
performance data and messages such as sound selections.
Any MIDI-compatible device can transmit musical data
(as appropriate for the type of device) to any other
MIDI-compatible device, regardless of its manufacturer or
model type.
a worldwide standard that allows electronic musical
instruments and personal computers to exchange musical
performance data and messages such as sound selections.
Any MIDI-compatible device can transmit musical data
(as appropriate for the type of device) to any other
MIDI-compatible device, regardless of its manufacturer or
model type.
R-BUS
Roland’s digital communication specification developed
to allow audio and control data to be exchanged between
devices. Multi-channel audio signals, word clock, and
MIDI-compatible operation data and synchronization
signals can be exchanged. A single R-BUS connector
allows simultaneous bi-directional transfer of eight
channels of up to 96 kHz 24-bit digital audio data. The
connector is a DB-25 type, and uses a special cable for
connections. It should NOT be connected to other types of
ports that use similar connectors! Also, you can not use a
computer SCSI cable for R-BUS connections.
to allow audio and control data to be exchanged between
devices. Multi-channel audio signals, word clock, and
MIDI-compatible operation data and synchronization
signals can be exchanged. A single R-BUS connector
allows simultaneous bi-directional transfer of eight
channels of up to 96 kHz 24-bit digital audio data. The
connector is a DB-25 type, and uses a special cable for
connections. It should NOT be connected to other types of
ports that use similar connectors! Also, you can not use a
computer SCSI cable for R-BUS connections.
SCMS
SCMS stands for Serial Copy Management System. This is
a function that protects the rights of copyright holders by
prohibiting recording via a digital connection for more
than two generations. When digital connections are made
between digital recorders that implement this function,
SCMS data will be recorded along with the audio data.
Digital audio data which contains this SCMS data cannot
again be recorded via a digital connection.
a function that protects the rights of copyright holders by
prohibiting recording via a digital connection for more
than two generations. When digital connections are made
between digital recorders that implement this function,
SCMS data will be recorded along with the audio data.
Digital audio data which contains this SCMS data cannot
again be recorded via a digital connection.
Phantom Power
This is a method of providing electrical power to
condenser mics via the mic cables. Generally, a mixer’s
internal phantom power source supplies 6–48 volts (DC).
Supplying phantom power to dynamic mics, audio
playback devices, or other such equipment may result in
damage to the equipment. Turn the phantom power
switch on only when connecting condenser mics which
need phantom power; otherwise, leave it switched off.
condenser mics via the mic cables. Generally, a mixer’s
internal phantom power source supplies 6–48 volts (DC).
Supplying phantom power to dynamic mics, audio
playback devices, or other such equipment may result in
damage to the equipment. Turn the phantom power
switch on only when connecting condenser mics which
need phantom power; otherwise, leave it switched off.