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APRS Tape-Label System : The APRS has decided on a standard color-code for tape labelling:

cue system : The entire electronic circuitry contained within the recording console that allows the engineer to adjustably feed sound from any input module to the cue mix, then out to the musiciansí or singersí headphones via the cue amp and cue boxes.

stem : Usually used to indicate the inputs to the final mixdown, being comprised of the dialog, music, and effects (DME ME) final tracks. By inference, the many individual tracks which create each of the dialog, music, and effects portions of the soundtrack would be "leaves(?)," and the final, mixed and edited DME inputs for each soundtrack are the stems.

sound system equalization : The equalization of a sound reinforcement system, either to increase its amount of gain before feedback, or to make its overall frequency response more linear nearly flat.

single-system sound : A way of producing sound for motion pictures where the sound is recorded directly onto the film in the camera at the time of shooting. Sound and picture are thus on a single strip of film from the start, with image and sound in projection sync with each other. Used primarily for news and sports where the relatively limited-fidelity of single system cameras can be tolerated. Cheaper than double-system sound, but also less flexible. Video is, by definition, single-system sound, but may be used as a double-system if a separate audio recorder is used during filming.

System-Common : A type of MIDI data used to control certain aspects of the operation of the entire MIDI system. System-Common messages include Song Position Pointer (SPP), Song Select, Tune Request, and End-of-System-Exclusive (EOX).

System-Exclusive : (sSys-eEx) System-EExclusive is designed to be an open-ended part of the MIDI specification, defined to enable the transmission of the entire memory contents of a synthesizer over a MIDI cable. This transmission is often called a bulk dump. Sys-eEx commands are strings of numbers, usually written in hexadecimal format, that carry information to a MIDI device, specific to the manufacturer and particular model. In other words, that device, exclusively, will respond to the commands, and all other MIDI devices ignore them. Sys-eEx data is used most commonly for sending patch parameter data to and from an editor/librarian program, but other types of data such as the contents of tuning tables are transferred in this way as well. See SDS, SMDI."

system message : A general term for MIDI messages with status byte values of 240 and above, intended for all devices on a MIDI network, irrespective of any channel assignments. . Itn includes System- Common, System- Exclusive, and System Real-Time message types. See MIDI.

System Real-Time : A type of MIDI data that is used for timing reference. Because of its timing-critical nature, a System Real-Time byte can be inserted into the middle of any multi-byte MIDI message. System Real-Time messages include MIDI Clock, Start, Stop, Continue, Active Sensing, and System Reset.

System Reset : A System Real-Time message which causes a MIDI device to reset to its default condition, i.e., its settings when first powered-up. This will usually involve silencing all voices, resetting the display to the opening page, etc.

Universal System Exclusive : A part of System-Exclusive which is intended for all equipment, irrespective of manufacturer. The message uses one of three particular ID numbers after the SOX status byte: 125 is for non-commercial or academic use; 126 is for non-real-time use and includes messages for MTC Set-Up, SDS, MIDI File Dump, Bulk Tuning, and GM; 127 is for real-time use and includes MTC Full Message, User Bits, Show Control, Notation, Device Control, Machine Control, Single-Note Retuning messages, Master Balance, Master Volume, and Real-Time MTC Cueing.

Digital Audio Mastering System : See digital multitrack.

double-system sound : (1) A method of producing sound motion pictures where the soundtracksound track is recorded on a magnetic tape recorder which is separate from the video recorder and which is synchronized with the movement of the film in the camera, projecting a film with the picture on 35mm film, in interlock with the soundtrack, most commonly on mag film. The synchronization was originally done by recording a special tachometer signal on one track of the tape, but is now done with timecode. Examples of double-system sound are film and Nagra, film and mag dubber, videotape and audio tape. (2) A film or video production that utilizes sound recorded on a separate tape recorder, such as a DAT or Nagra. This term is still used even if the video recorder is also simultaneously recording the sound. Compare with single sound system. See mut. Also called sep mag.

Operating System : the low-level software that provides a computerís basic features and capabilities. Operating systems can be linked to specific platforms such as Mac OS on PPC or may, like BSD UNIX, be available for a wide variety of CPUs

Oxmoor EQ System can superimpose up to eight frequency response curves on the otherwise flat monitor chain, creating a full 20-20K Hz spectrum.

System Alignment a scientific process where the interaction of the speakers and the room are compensated for by carefully adjusting delay, levels and finally equalization.

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