level meter
21Programme level — refers to the level that an audio source is transmitted or recorded at, and is important in audio if listeners to CD s, radio and television are to get the best experience, without excessive noise in quiet periods or compression of loud sounds.… …
22Peak meter — A peak meter is a type of visual measuring instrument that indicates the instantaneous level of an audio signal that is passing through it (a sound level meter). In sound reproduction, the meter, whether peak or not, is usually meant to… …
23Clap-o-meter — A clap o meter, clapometer or applause meter is a measurement instrument that purports to measure and display the volume of clapping or applause made by a studio audience or an audience at some other event. It is used to decide the result of… …
24Ambient noise level — In atmospheric sound transmission or noise pollution, ambient noise level is the sound pressure level at a given location, normally specified as a reference level to study a new intrusive sound source.Ambient sound levels are often measured in… …
25Light meter — A light meter is a device used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which… …
26VU meter — A VU meter is often included in analog audio equipment to display a signal level in Volume Units.It is intentionally a slow measurement, averaging out peaks and troughs of short duration to reflect the perceived loudness of the material. It was… …
27Mean Sea Level — Österr. Höhenmarke am alten Bahnhof von Tarvis / Tarvisio Badwater im kalifornischen …
28Optical power meter — in use An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in fiber optic systems. Other general purpose light power measuring devices are usually… …
29E-meter — An E meter is an electronic device used as an aid in some forms of Dianetics and Scientology auditing. The device is a variation on an ohmmeter, using a Wheatstone bridge to measure electrical resistance. The device is formally known as the… …
301.25-meter band — The 1.25 meter band is a portion of the VHF radio spectrum allocated for amateur radio use in ITU Region 2, comprising frequencies from 222 MHz to 225 MHz in the United States (with the addition of 219–220 MHz on a limited, secondary basis) and… …
