Glossary Listing for D

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Please browse our definitions glossary of Lighting, Audio & Production terms starting with D. It is constantly being expanded every day. If you would like to add a term to the glossary please send us an email as info@solarisnetwork.com

Delay Audio /    Delay is an audio effect which records a signal or sound and then plays it back after a period of time. The delayed signal may be played back multiple times or looped back into the recording again to create the sound of a repeating decaying echo. Unlike reverb, which uses reflected sound to produce many echos, delay has greater control over the number of tim     more...      Depth of Field Lighting / Intelligent Lighting    While a lens focuses on a single plane of depth, there is usually an additional area in focus behind and in front of that plane. This is depth of field. Depth of field increases as the iris is closed. There is more depth of field the wider the lens and le      more...      Dichroic Lighting / Conventional    In optics, the term dichroic has two related but distinct meanings. A dichroic material is one which either causes light to be split up into distinct beams of different wavelengths (colours), or, one in which light rays having different polarizations are absorbed by different amounts. The original meaning of dichroic (from the Greek dikhroos, two-coloured)      more...      Digital Projection Lighting /    A digital projection display system is a computerized display that projects an image, often a logo, on a screen, building or other architectural features like the court in a sports arena. Such devices are commonly used in presentations or as promotional devices. These displays use a very bright light to project the image, and can generally correct any curves     more...      Digital signal Audio / Amplification    A digital signal is a signal that is both discrete and quantized. Its primary counterpart is an analog signal. Digital signals usually occur in electronics, but may be found in other fields of engineering as well. Digital signals may be divided into two categories: * Some are inherently both discrete and quantized (ex. the number of people who visit a      more...      Dimmer Lighting / Dimmers    Dimmers are devices used to vary the voltage running to a light. By decreasing or increasing the voltage to the lamp it is possible to vary the intensity of the lamp. Changes in intensity are called “fades” and can be “fade ups” or “fade downs.” Although variable-voltage devices are used for various purposes, the term dimmer is generally associated with ligh     more...   Buy Used Dimmers for sale here    Dimmers and Distro Lighting /    Dimmers are devices used to vary the brightness of a light or stage light and are usually controlled remotely by a lighting console or controller by way of a protocol that is usually DMX. A Distro is a device that distributes power to many devices.     more...      Discharge Lamp /    A high powered light source produced by an arcing electrical discharge between two electrodes suspended in a glass tube filled with gas, usually high or low pressure sodium gas, xenon, mercury vapor, or metal halide. This type of illumination is limited to applications such as followspots and projection, where dimming is accomplished by mechanical instrumen     more...      DMX-512 Lighting / Consoles    DMX512, often shortened to DMX (Digital MultipleX), is a communications protocol used mainly to control stage lighting. Developed by the Engineering Commission of USITT, the standard started in 1986, with subsequent revisions in 1990 leading to USITT DMX512/1990. ESTA took control of the standard in 1998 and began a revision process. The new standard, known     more...      Drivers and Horns Audio /    Drivers and Horns are speakers designed to produce high frequency audio usually around 3-5 kHz and up to 20 kHz. Horns are usually in the shape of a long corn and look somewhat like the horn of a musical instrument.      more...