Manual

423 PRO X User Manual
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 specically designed for carrying out signal processing.
E
E zone: Section in the input channel strip for controlling EQ parameters.
Eect: One of a number of audio processes that can be applied to a signal to
modify it, such as reverb, anging, phasing, delay etc.
Eects rack: A virtual rack of internal processors. See Virtual rack.
Envelope: 1. How a sound or audio signal varies in intensity over time.
2.Thevisual representation of such, usually shown on a graph in a GUI
channelstrip.
EQ: Abbreviation for “equaliser” or “equalisation”.
Equalisation: Adjusting the frequency response so that the levels
of all frequencies are equal or the same. Bass and treble controls are
equalizationcontrols.
EtherCon®: A cable connector for data transfer interconnections, which is more
robust than the basic RJ45.
F
Fader: Slider-type device for precise adjustment of signal level or volume
ofachannel.
Fast strip: One of the strips in the input, mix and output fast zones. See Input
fast strip, Mix fast strip, Output fast strip and Fast zone.
Fast zone: An area on a bay that contains quick controls. See Input fast zone,
Mixfast zone, Output fast zone and Fast strip.
FB: Abbreviation for “front-back”. A term used in surround panning.
Feedback: See Acoustic feedback.
Filter: A device for removing frequencies above or below certain levels.
FOH: Abbreviation for “front of house”. Thearea in a theatre used by the public.
Used to describe a control centre being used to control the sound that the
audience will hear (and not the performers’ monitor system).
Frequency: The number of times that a sound wave’s cycle repeats within
onesecond.
Fricative: A consonant, such as “f” or “s”, produced by the forcing of breath
through a constricted passage.
From section: The leftmost area of the patching screen that contains the source
patch connectors. See Patching.
G
Gain: Another term for signal level.
Gain reduction (compressor): Decrease in gain when input signal is above
threshold. See Gain.
GEQ: Abbreviation for “graphic equaliser”. See Graphic EQ.
GEQ rack: A virtual rack of GEQs. See Virtual rack.
Granularity: A measure of the size of components or a description of the
components comprising a system.
Graphic EQ: A form of EQ that has a number of faders for controlling the gain of
the audio signal. The faders are set at frequency bands that are evenly-spaced
according to octaves.
GUI: Abbreviation for “graphical user interface”.
GUI channel strip: Right section of a GUI screen that represents the processing
area of the input or output channel strip selected to the control surface.
GUI menu: A menu selectable at either GUI screen by clicking the home button
(upper-left corner).
GUI screen: One of the two PRO Series’ screens, which comprise the GUI.
H
HPF: Abbreviation for “high pass lter”. A lter that removes lower frequencies
from a signal, leaving the higher frequencies unaected.
Hum: Undesirable low frequency tone present in a signal due to grounding
problems or proximity to a power source.
Hz: Symbol for “Hertz”. A unit of frequency equal to one cycle of a sound wave
per second.
I
I zone: Area on the master bay that contains the operator-assignable
eectscontrols.
I/O: Abbreviation for “input/output”.
ID: Abbreviation for “identication”.
Ident: Scale marking, or gradation, around a control knob to help indicate the
current setting and to assist in accurate adjustment.
Impedance (Z): Opposition to the ow of alternating current in a circuit,
measured in ohms.
K
Kernel: For computers, the kernel is the central component of most
operatingsystems.
L
LCD select button: LCD button in the input fast strips and VCA groups, used for
channel/group navigation and selection, and operator feedback.
LFE: Abbreviation for “low frequency eects”. Typically, the “.1” in “5.1 surround”
is an LFE channel.
Linux: Also known as “Linux kernel”. Operating system kernel used by a family of
Unix-like operating systems. See kernel.
LS: Abbreviation for “left surround”. The left rear speaker in a 5.1
surroundsystem.
M
MADI: Abbreviation for “multi-channel audio digital interface”.
Master bay: Control area for masters, automation, comms, monitoring etc.
Alsocontains the primary navigation zone.
Masters: The three master channels (mono and stereo left and right) in the
master bay.
MB: Abbreviation for “megabyte”.
MC: Abbreviation for “master controller”.
Meter: Visual device to indicate the level of a signal.
Meters screen: One of the GUI screens. This is the default screen of the
masterbay.
Mic: Abbreviation for “microphone”.
Microphone: Device for converting sound waves into audio signals.
MIDI: Acronym for “musical instrument digital interface”. A digital signal system
standard that facilitates integration of musical instruments, such as synthesizers
and guitars, with computers.
Mix: 1. A signal that contains a combination of signals, such as a pair of stereo
signals with numerous eects. 2. The act of creating such a combination.
3.Atype of bus. See Bus.
Mix bay: Control area for outputs and groups.