Midas PRO6, Руководство пользователя

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Glossary
PRO6 Live Audio System
Owner’s Manual
Bus: A pathway down which one or more signals
can travel.
C
Cat 5e: A specification for a type of cable used
typically for Ethernet computer networks.
Channel: Single path taken by an audio signal
(input or output) through the control centre.
Channel strip: Row of controls in traditional
analogue layout used for the shaping of a signal.
Checkpoint: A patching data store point,
created by clicking CHECKPOINT. See
Patching.
Click: A method of GUI operation, mainly for
button operation and selection purposes.
CMR: Abbreviation for “common mode
rejection”. A measure of how well a differential
amplifier rejects a signal that appears
simultaneously and in-phase at both input
terminals. CMR is usually stated as a dB ratio at
a given frequency.
Comb filtering: Removal of signal components
at a number of regularly spaced frequencies.
Compressor: A dynamics processor that
reduces the level of any signal exceeding a
specified threshold volume.
Condenser microphone: A high quality mic
that uses a capacitor to detect changes in the
ambient air pressure, which it then converts into
an electrical signal. This type of mic requires
power from a battery or external source.
Control centre: The PRO6’s console,
comprising control surface and GUI.
Control surface: Area on the control centre
that houses all of the user’s hardware controls,
such as pushbuttons, control knobs, switches
etc.
Crossfade: To combine signals such that one
channel or source fades out while another fades
in, but maintaining an essentially constant
programme volume.
Cursor: Generally, used to describe the
“I”-shaped pointer on the GUI that indicates a
text insertion point. See Pointer.
D
D zone: Section in the input channel strip for
controlling dynamic parameters.
D/A: Abbreviation for “digital to analogue”. The
conversion of digital data to analogue audio.
DARS: Abbreviation for “digital audio reference
signal”.
Dashboard: A standard GUI screen display -
usually on the master bay - that shows all
channel meters (inputs, auxes, returns, masters
etc.) all of the time.
dB: Symbol for “decibel”. A unit of
measurement of the loudness of sound. See
dBu.
dBu: A unit of measurement of sound used in
professional audio. Derived from the decibel,
where the “u” stands for unloaded, this unit is
an RMS measurement of voltage based on
0.775V
RMS
, which is the voltage at which you
get 1mV of power in a 600 ohm resistor. This
used to be the standard impedance in most
professional audio circuits.
DC: Abbreviation for “direct current”.
Delay: An effect by which a reproduction of a
signal is played back later then its original.
Destination: The patch connector to which a
signal is routed. See Patching.
Device: A diagram(s) in the I/O tabs
representing a physical rack unit, such as a line
I/O, mic splitter, DN9696, AES50 etc. See
Patching.
DI: Abbreviation for “direct inject” or “direct
injection”. Signal is plugged directly into the
audio chain without using a microphone.
DI box: Device for matching signal level
impedance of a source to mixer input.
Drag: A method of GUI operation, mainly for
control adjustment. Also used for selecting
blocks of patch connectors during patching.
DSP: Abbreviation for “digital signal processing”
or “digital signal processor”. Any signal
processing done after an analogue audio signal
has been converted into digital audio. Can be
used to create, for example, compression,
equalization etc., of a digital signal. A digital
signal processor is a piece of equipment
specifically designed for carrying out signal
processing.
E
E zone: Section in the input channel strip for
controlling EQ parameters.
Effect: One of a number of audio processes that
can be applied to a signal to modify it, such as
reverb, flanging, phasing, delay etc.
Effects rack: A virtual rack of internal
processors. See Virtual rack.