Studiomaster Powerhouse Vision 700 serie Bedienungsanleitung Seite 15

Powerhouse 700/1200 Operator Guide
GLOSSARY OF TECHNICAL TERMS
A.C. SUPPLY
ASSIGN
ATTENUATE
AUX/AUXILIARY
BALANCE
BALANCED
BANDWIDTH
BIN or BASS BIN
BUSS
CHANGEOVER
COLD
COMPRESSOR
CLIPPING
D. I. Direct Injection.
DECIBEL (dB)
DELAY
DETENT
EFFECTS SENDS
ECHO
EFFECTS
EQ (EQUALISATION)
FADER
FEEDBACK
F.O.H.
FLAT (EQ)
FOLDBACK
GRAPHIC
GROUND
GROUP
HERTZ (Hz)
HEADROOM
HIGH (or TOP)
HOT
INSERT
IMPEDANCE
KILOHERTZ (kHz)
LEVEL
LISTEN
MIC LEVEL
MOMENTARY
LINE LEVEL
MIDI
Local electrical supply
To switch or route a signal to a specific signal path.
To reduce or make quieter.
means of sending a signal to external equipment, generally without affecting the main mix.
The relative levels of signals. Also the left/right position in a stereo mix.
Balanced circuitry is widely used in audio equipment. It is used as it cancels outside interference in
the connecting cables resulting in a cleaner signal
Audio bandwidth is the range of frequencies that can pass through a piece of equipment.
A speaker cabinet designed to reproduce low frequencies.
A common conductor that carries a signal, or number of signals, through a mixing console.
A type of footswitch normally with a latching switch.
The negative phase of a signal. The other is HOT (positive).
An electronic device used to stop the level of a sound from increasing above a set threshold point.
A compressor can be used to keep signal levels from overloading the input of a piece of equipment.
Distortion caused by a signal exceeding the maximum level that an input can accommodate.
Often a small "D. I. box" is used to send a signal directly from a guitar or bass into the console
without first putting it through an amplifier and speaker and capturing the sound with a microphone.
A logarithmic ratio used to represent voltage or power gain. The reference to which the ratio is
made is usually stated. Also used as a measure of audible loudness. 0dB is the threshold of human
hearing. Measurements made in dBA take account of the ear's differing sensitivity to different
frequencies particularly at low volume levels.
A delay or DDL (Digital Delay Line) is an electronic effects processor which samples a short sound
and replays it back a short time later to give an echo effect. Delays are also used in very large live
venues to ensure that sound from different speaker arrive at the listeners ears at the same time.
A soft "click" in the travel of a control usually indicating the centre point.
Any outputs from a channel or console that can be connected to external equipment for extra
sound processing. Usually effects sends are post fade.
The effect of sound reflecting off hard surfaces, often reproduced artificially. See DELAY
Any device that affects a sound. From a simple foot pedal to professional studio effects processor.
Tone controls
Volume control, often a linear or slider type volume control.
The squealing sound produced when a mic picks up it's own amplified sound from a loudspeaker.
Front of House. The speaker system which is used to project the sound from the stage to the
audience. Also the position, in front of the stage, where the main mixing console is situated.
When the signal has not been adjusted using the equaliser (EQ) controls.
On-stage monitor system. Theoretically sound which is sent from the main mixing position back to
the stage so the performers can hear it. Often with a large sound system an entirely separate
foldback (or monitor) system with a dedicated console is located on one side of the stage.
Graphic equaliser. An equaliser that uses rows of sliders. Each of the sliders will adjust one part of
the frequency spectrum giving a visual display of which areas have been cut or boosted.
Earth
A collection of related signals all routed to one (or two) faders for easy overall control. An example
might be to route all the drum signals to one group so that the level of the whole kit can be
adjusted without changing the balance of the sound between them.
A measurement of frequency. 1Hz = 1 cycle per second.
The amount of level (above the nominal operating level) that an input can manage before distorting.
The treble or high frequency content of a sound or the speakers used to reproduce it.
See COLD
A TRS jack that is a send and a return. These allow individual signals to be processed externally
and then returned to the console. Inserts are generally used for dynamics treatments such as
compressors and noise gates as the whole of the signal is processed. Inserts are fitted to the main
outputs of the 700/1200, for overall processing, before the signal is sent to the internal amplifiers.
Similar to resistance, except it measures the effect of any inductance or capacitance in the circuit.
A measurement of frequency. 1Hz = 1 cycle per second. 1000Hz = 1kHz.
The size of a signal, at any given point, in an audio system.
A button that allows the operator to monitor signals within the console.
The very small output level of a microphone, generally around 5 to 10 millivolts (mV), a millivolt is
1/1000 of a Volt. When used close up in live situations however, the voltage produced by a
microphone, even a low impedance type may be as much as a Volt or more.
A type of footswitch with a non-latching switch.
The output of most powered equipment. Typical semi pro equipment is -10dBV. Pro equipment level
is usually +4dBu and often balanced. Can be anything from 100mV and 4V (-15 to +15dBu).
Musical Instrument Digital Interface. An industry standard which allows suitably equipped instruments
and equipment to communicate with each other.
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