loudness measurement

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• Loudness war — Different releases of Michael Jackson s song Black or White show increasing loudness over time. The loudness war or loudness race is a pejorative term for the apparent competition to digitally master and release recordings with increasing… …   Wikipedia

• measurement — /mezh euhr meuhnt/, n. 1. the act of measuring. 2. a measured dimension. 3. extent, size, etc., ascertained by measuring. 4. a system of measuring or measures: liquid measurement. [1745 55; MEASURE + MENT] * * * Association of numbers with… …   Universalium

• Equal-loudness contour — An equal loudness contour is a measure of sound pressure (dB SPL), over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. The unit of measurement for loudness levels is the phon, and …   Wikipedia

• Theory of conjoint measurement — The theory of conjoint measurement (also known as conjoint measurement or additive conjoint measurement) is a general, formal theory of continuous quantity. It was independently discovered by the French economist Gerard Debreu (1960) and by the… …   Wikipedia

• Audio noise measurement — is carried out when assessing the quality of audio equipment, such as is used in recording studios, broadcast studios, and in the home (Hi Fi).Noise in general refers to unwanted sound, often loud, but in audio systems it is the low level hiss or …   Wikipedia

• Audio quality measurement — seeks to quantify the various forms of corruption present in an audio system or device. The results of such measurement are used to maintain standards in broadcasting, to compile specifications, and to compare pieces of equipment. The need for… …   Wikipedia

• Loudspeaker measurement — is one of the most difficult aspects of audio quality measurementFact|date=March 2008, and also probably the most relevant, since loudspeakers have long been generally acknowledged to be the weak link in the audio chainFact|date=March 2008.… …   Wikipedia

• Wow and flutter measurement — is carried out on audio tape machines, cassette recorders and players, and other analog recording and reproduction devices with rotary components (e.g. movie projectors, turntables (vinyl recording), etc.). This measurement quantifies the amount… …   Wikipedia

• Noise measurement — is carried out in various fields. In acoustics, it can be for the purpose of measuring environmental noise, or part of a test procedure using white noise, or some other specialised form of test signal. In electronics it relates to the sensitivity …   Wikipedia

• Rumble measurement — is carried out on turntables (for vinyl recordings) which tend to generate very low frequency noise originating from the centre bearing and from drive pulleys or belts, as well as from irregularities in the record disc itself.It can be heard as… …   Wikipedia

• Crosstalk measurement — is made on audio systems to determine the amount of signal leaking across from one channel to another. Interchannel crosstalk applies between the two channels of a stereo system, and is usually not very important on modern systems, though it was… …   Wikipedia