- F/A/Vsound that has not been colored by room reflections. This is also known as direct sound.
Audio and video glossary. 2014.
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Near field — may refer to: Near field (mathematics), an algebraic structure Near and far field, parts of an electromagnetic field Near field communication, a set of short range wireless technologies, typically requiring a distance of 4 cm or less Near field… … Wikipedia
near-field — 1. noun a) In physical acoustics, the region of space within a distance a fraction of a wavelength from a sound source. Accordingly, the outer boundary of the near field region is closer for … Wiktionary
Near-field scanning optical microscope — Near field scanning optical microscopy (NSOM/SNOM) is a microscopic technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves. This is done by placing the detector very… … Wikipedia
Near Field Communication — or NFC, is a short range high frequency wireless communication technology which enables the exchange of data between devices over about a 10 centimetre (around 4 inches) distance.Fact|date=July 2008 The technology is a simple extension of the ISO … Wikipedia
Near-field electromagnetic ranging — (NFER) refers to any radio technology employing the near field properties of radio waves as a Real Time Location System (RTLS). Contents 1 Overview 2 Technical Discussion 2.1 Advantages … Wikipedia
Near-field optics — is that branch of optics that considers configurations that depend on the passage of light to, from, through, or near an element with subwavelength features and the coupling of that light to a second element located a subwavelength distance from… … Wikipedia
Near Field Infrared Experiment — NFIRE satellite Launch date 24 April 2007 Launch vehicle Minotaur rocket Launch site … Wikipedia
Near field communication — An NFC enabled mobile phone interacting with a SmartPoster Near field communication, or NFC, allows for simplified transactions, data exchange, and wireless connections between two devices in proximity to each other, usually by no more than a few … Wikipedia
Near-field (mathematics) — This article is about the mathematical concept. For the electromagnetic concept, see Near and far field. In mathematics, a near field is an algebraic structure similar to a division ring, except that it has only one of the two distributive laws.… … Wikipedia
Near Field Magnetic Induction Communication System — A Near Field Magnetic Induction Communication System is a short range wireless physical layer that communicates by coupling a tight, low power, non propagating magnetic field between devices. The concept is for a transmitter coil in one device to … Wikipedia