Calista Home Theaters

A control to send the signal from the input module to the echo chamber or effects device via the echo buss. High-Pass Filter A device that rejects signals that are below a certain frequency (called the cut-off frequency) and passes signals with frequencies that are higher. Calista C1-9 Home Theater Filter 1) A device that removes signals with frequencies above or below a certain point called the cut-off frequency. 2) An equalizer section, used in this sense because filters are used with other components to give an equalizer its frequency response characteristics. 3) The action of removing signals of some frequencies and leaving the rest. 4) A mechanical device to smooth out speed variations in tape machines called a Scrape Flutter Filter- more usually called a Scrape Flutter Idler Level The amount of signal strength; the amplitude, especially the average amplitude. Calista C3-S Security System Cable, XLR A balanced cable used for low impedance microphone...

Sending too high of a signal level into a device so that the first amplifier of the device overloads. Electromagnetic Induction or Pick Up The generation of electrical signal in a conductor moving in a magnetic field or being close to a changing magnetic field. Calista C2-88 Projector Clean Describes a distortion free sound with few effects. Condenser Microphone A microphone which converts sound pressure changes into changes of capacitance. The capacitance changes are then converted into electrical voltage variations (an audio signal). Calista C3-S Security System AES An abbreviation of Audio Engineering Society. Bit The smallest unit of digital information representing a single "0" or 1. Formant An element in the sound of a voice or instrument that does not change frequency as different pitches are sounded. Bose Guitar Controller An electric guitar or device played like an electric guitar that puts out MIDI signals that can be used...

A console with modules that have controls for all console sections in one long strip. Audio Most often referring to electrical signals resulting from the sound pressure wave being converted into electrical energy. Calista C1-9 Home Theater Cascade To set and interconnect two mixers so that the stereo mixing buss(es) of the first mixer feeds the stereo buss(es) of a second mixer. Ambient Micing Placing a microphone in the reverberant field (where the reverberation is louder than the direct sound) so as to do a separate recording of the ambience or to allow the recording engineer to change the mix of direct to reverberant sound in recording. Calista C3-S Security System Clean Describes a distortion free sound with few effects. Automatic Gain Control (Automatic Volume Control) A compressor with a very long release time used to keep the volume of the audio very constant. Bulk Dump Short for System Exclusive Bulk Dump (a method of transmitting data, suc...

1) An abbreviation of the term Amplifier (A device which increases the level of an electrical signal. 2) An abbreviation of Ampere (the unit of current). 3) An abbreviation of amplitude (the height of a waveform above or below the zero line). Bi-Amplification 1) A way of optimizing the efficiency of a speaker system by separately amplifying the High Frequency (HF) and Low Frequency (LF) portions of the sound signal and sending them down two pairs of cables to the speaker. Multipin Speakon connectors have been developed to do this. 2)The process of having of having low-frequency speakers and high-frequency speakers driven by separate amplifiers. Calista C2-88 Projector IM Distortion An abbreviation of the term Intermodulation Distortion (Distortion caused by one signal beating with another signal and producing frequencies that are both the sum and the difference of the original frequencies present). Error Concealment Putting replacement information bits into a ...

Short for the term High Frequencies (the audio frequencies from 6000 Hz and above). Bandwidth 1) The range of frequencies over which a tape recorder, amplifier or other audio device is useful. 2) The range of frequencies affected by an equalization setting. Calista C2-88 Projector Keyboard Controller A device that has the standard music keys of piano but puts out MIDI signals Hall A large building designed for concerts; also called a concert hall. Calista C1-9 Home Theater IM Distortion An abbreviation of the term Intermodulation Distortion (Distortion caused by one signal beating with another signal and producing frequencies that are both the sum and the difference of the original frequencies present). Ampere The unit of current, abbreviated Amp. Ground Lift A switch that breaks the connection between the ground point in one circuit and the ground point in another circuit. Calista Reviews Clipping Distortion of a signal by its being chopped ...

Adapts a three pronged electrical plug to a two pronged wall outlet. This bypasses the ground and may create a hum in the system. A lack of a good ground can cause mild electrical shock when touching a microphone. Aliasing A sampler mis-recognizing a signal sent to it that is at a frequency higher than the Nyquist Frequency. Upon playback, the system will provide a signal at an incorrect frequency (called an alias frequency). Aliasing is a kind of distortion. Calista C1-9 Home Theater Electromagnetic Field Magnetic energy put out because of current travelling through a conductor. Frequency Range The range of frequencies over which an electronic device is useful or over which a sound source will put out substantial energy. Calista C3-S Security System First Generation A descriptive term meaning original (as opposed to a copy). Hearing Limitation An inability of the ear to hear important characteristics of sound under certain conditions. Characteristics th...

1) Relative measurement for the volume (loudness) of sound. Also used to measure the difference between two voltages, or two currents. See Zero dB. 2) A numerical expression of the relative loudness of a sound. The difference in decibels between two sounds is ten times the common logarithm of the ratio of their power levels. Electromagnetic Field Magnetic energy put out because of current travelling through a conductor. Calista C1-9 Home Theater AES An abbreviation of Audio Engineering Society. Hall Program A setting of a digital delay/reverb effects unit that approximates concert halls. Hall programs are characterized by pre-delay of up to 25 ms. Calista C2-88 Projector Clip The action of deforming a waveform during overload. Buss (Bus) A wire carrying signals to some place, usually fed from several sources. 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...

1) Changing the sequence of a recording by cutting the recording tape and putting the pieces together in the new sequence with splicing tape. 2) Punching in and then punching out on one or more tracks of a multitrack tape recorder to replace previously recorded performances. 3) Changing the sequence of a digital recording's playback by computer program. Jack Bay A series of jacks which have connections for most of the inputs and outputs of the equipment in the control room. Calista C3-S Security System Active/Inactive Microphones Scientific definitions aside, active microphones generally sound better than inactive ones, but they generally cost more. They also require the use of either a battery or phantom power while inactive mics need only be plugged into the mic cord in order to work. In most playing situations, the subtle improvement in sound quality from an active mic isn't worth the extra cost and hassle. One possible exception it the headset mic. Put sim...

A double grounding of a line or electronic device at two different "ground" points of differing voltage. High Hat A double cymbal on a stand which can be played with a foot pedal or by the top cymbal being hit with a stick. Calista C3-S Security System Chorusing 1) A term meaning the same thing as Chorus (Definition 3 or 4). 2) In some delay effects devices, a term used to mean the term Depth (the amount of change in the controlled signal by the control signal). Golden Section A ratio of height to width to length of a room to achieve "good acoustics" and first recommended by the ancient Greeks. The ratio is approximately the width 1.6 times the height and the length 2.6 times the height Calista C1-9 Home Theater High Impedance Impedance of 5000 or more ohms. Compression Driver The unit that feeds a sound pressure wave into the throat of a horn (in a horn loudspeaker). Gain Control A device that changes the gain of an amplifier...

1) In tape recording, the transducer (energy converter) that changes the audio energy from electrical energy to magnetic energy and back; also the devices that apply magnetism to the recording tape for other purposes such as in the erase head. 2) The part of a device that immediately includes the transducer to change sound or audio signals from one energy form to another. Channels These are divided into two separate categories. Input channels are those channels coming into the soundboard such as microphones and direct lines. Output channels are those leaving the board such as monitor and main outputs. Calista C2-88 Projector Gain Reduction The working of a limiter or compressor reducing gain during high-level passages. FOH (Front of House) Refers to the speakers that face toward the audience. Also called the "main" speakers. Calista C1-9 Home Theater Chorus 1) The part of The song that is repeated and has the same music and lyrics each time; the ch...