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Calista C2-88 Projector Clip

The action of deforming a waveform during overload. Interface Any device that allows one unit to work, drive or communicate with another unit when they cannot do so by just feeding each other often because the units are manufactured by different companies. Calista C3-S Security System Hall A large building designed for concerts; also called a concert hall. Auxiliary Equipment Effects devices separate from but working with the recording console. Calista C1-9 Home Theater Link (Said of compressors and dynamic processing units.) To combine the control input signals of two channels of a compressor (o Figure Eight Pattern Another name for Bi-directional Pattern (microphone pickup pattern picking up best from the front and back of the diaphragm and not picking up from the side of the diaphragm). Hearing Limitation An inability of the ear to hear important characteristics of sound under certain conditions. Characteristics that can be affected include pitc...
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Calista C3-S Security System LFO

Low-Frequency Oscillator (an oscillator that puts out an AC signal between .1 Hz and 10Hz used for a control signal). Byte A grouping of eight information bits. Calista C1-9 Home Theater Effects 1) Various ways an audio signal can be modified by adding something to the signal to change the sound. 2) Short for the term Sound Effects (sounds other than dialogue, narration or music like door closings, wind, etc. added to film or video shots). Balls 1) The depth and thickness of a sound, usually on the bottom end of the EQ (as in "needs more balls"). 2) The strength of the voice on the mic (as in "check it like you have some balls"). Calista C2-88 Projector Figure Eight Pattern Another name for Bi-directional Pattern (microphone pickup pattern picking up best from the front and back of the diaphragm and not picking up from the side of the diaphragm). Arc The visible sparks generated by an electrical discharge. Frequency Practicall...
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Calista C3-S Security System A/D

An abbreviation of Analog to Digital Conversion (the conversion of a quantity that has continuous changes into numbers that approximate those changes), or Analog to Digital Converter. Comb Filter 1) The frequency response achieved by mixing a direct signal with a delayed signal of equal strength especially at short delays. 2) Loosely used to also describe effects that can be achieved with comb filtering as part of the processing. Calista C2-88 Projector Crossover Frequency 1) The frequency that is the outer limit of one of the bands of a crossover. 2) In the Lexicon 480L delay/reverberation effects unit, the frequency at which the bass frequency reverb time is in effect rather than the mid frequency reverb time. Barrier Micing A method of placing the head of a microphone as close as possible to a reflective surface, preventing phase cancellation. Calista C1-9 Home Theater Input 1) The jack or physical location of where a device receives a signal. 2) The ...
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Calista C3-S Security System Keynote Number

A number assigned to each key of a synthesizer or controller keyboard that is transmitted in the MIDI signal. Attenuator (Pot) The electronic dohickey under the knobs that increases or reduces the strength of the signal running through it. When these get old and dirty, they can make popping noises or rumbles in your PA (As in "my pots are dirty"). Assign Tochoose to which place an output is going to be sent. Calista C2-88 Projector Group 1) A number of channels or faders that can be controlled by one Master VCA slide. 2) A shortening of the term Recording Group (a buss or the signal present on a buss). Cable, TRS A less common balanced cable that has 3 different contacts on its 1/4 inch connectors. Most headphone jacks are a good example of a TRS (Tip-Ring-Sleeve) connector. These are sometimes used instead of the more common XLR connection. Calista C1-9 Home Theater Cue Send Control A control that will adjust the amount of signal sent to a cue b...
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Calista C1-9 Home Theater Bi

A prefix meaning two. Dynamic Mic Robust type of microphone which picks up the sound on a diaphragm connected to a coil of wire which moves within a magnet. An alternating current is induced into the wire which provides the electrical output. Most dynamic mics have low output impedance of 200 Ohms. See Condenser Mic. Calista C3-S Security System Instrument Amplifier A device that has a power amplifier and speaker in a case (or in separate cases) to reproduce the signal put out by an electric instrument (such as an electric guitar) and to allow the instrument to be heard. Flutter 1) High-frequency variations in pitch of a recorded waveform due to fast speed variations in a recorder or playback machine. 2) Originally, and more formally, any variations (fast or slow) in pitch of a recorded tone due to speed fluctuations in a recorder or playback unit. Calista C2-88 Projector Capacitance The property of being able to oppose a change in voltage or store an electr...
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Calista C2-88 Projector Analog To Digital Converter

The device which does the conversion of a quantity that has continuous changes (usually of voltage) into numbers that approximate those changes. ADSR The letters A, D, S &R are the first letters of: Attack, Decay, Sustain and Release. These are the various elements of volume changes in the sounding of a keyboard instrument. Calista C1-9 Home Theater Fidelity The recording or reproduction quality. Gain 1) Knob usually found at the top of each input channel on the soundboard. Used to set input levels of the separate channels to relatively equal positions. 2) The amount of increase in audio signal strength, often expressed in dB. Calista C3-S Security System Capacitance The property of being able to oppose a change in voltage or store an electrical charge. Board 1) Another, less formal, term for Console. 2) A set of controls and their housing which control all signals necessary for recording and for mixing. 3) A slang shortening of the term Keyboa...
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Calista C1-9 Home Theater Electric Current

A more formal term meaning the same as the term Current (the amount of electron charge passing a point in a conductor per unit of time). Buss (Bus) A wire carrying signals to some place, usually fed from several sources. Calista C2-88 Projector Amplifier Sound equipment that converts the low voltage, low current signal from a tape deck, mixer etc. into a higher current signal suitable for driving speakers. See Power Amplifier, Crossover. Compression Ratio How many dB the input signal has to rise above the threshold for every one dB more output of a compressor or limiter. Calista C3-S Security System Input Monitor A switch position and operational mode of the electronics of a tape machine where the signal at output of the electronics will be the same as the signal coming into the electronics. In this mode, the tape machine's meter will read the input signal. Line Out (Line Output) Any output that sends out a line level signal, such as the output of a ...
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