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Azimuth Co-ordinator
The Azimuth Co-ordinator was the first panning control for a quadraphonic sound system, at that time a new concept. Pink Floyd became the first band to use it in their early shows. The Azimuth Co-ordinator uses four rotary rheostats housed in a large box. The rheostats were converted from their standard 270 degrees rotation to operate over the narrower 90 degree range imposed by the physical constraints of the control lever with the box top aperture. The system was operated using two joysticks, which allowed an audio signal to be panned between up to six loudspeakers placed around the hall. The Azimuth Co-ordinator was operated by keyboardist Rick Wright. As he operated the joystick, the source of the sound moved from speaker to speaker around the auditorium. With the controls in the central position, the sound output would be equal in all speakers. It was constructed by a technical engineer Bernard Speight at EMI’s Abbey Road Studios. The original was stolen after the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azimuth Co-ordinator Used By Pink Floyd VA
An azimuth (; from ar, اَلسُّمُوت, as-sumūt, the directions) is an angular measurement in a spherical coordinate system. More specifically, it is the horizontal angle from a cardinal direction, most commonly north. Mathematically, the relative position vector from an observer (origin) to a point of interest is projected perpendicularly onto a reference plane (the horizontal plane); the angle between the projected vector and a reference vector on the reference plane is called the azimuth. When used as a celestial coordinate, the azimuth is the horizontal direction of a star or other astronomical object in the sky. The star is the point of interest, the reference plane is the local area (e.g. a circular area with a 5 km radius at sea level) around an observer on Earth's surface, and the reference vector points to true north. The azimuth is the angle between the north vector and the star's vector on the horizontal plane. Azimuth is usually measured in degrees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panning (audio)
Panning is the distribution of an audio signal (either monaural or stereophonic pairs) into a new stereo or multi-channel sound field determined by a pan control setting. A typical physical recording console has a pan control for each incoming source channel. A pan control or pan pot (short for "panning potentiometer") is an analog control with a position indicator which can range continuously from the 7 o'clock when fully left to the 5 o'clock position fully right. Audio mixing software replaces pan pots with on-screen virtual knobs or sliders which function like their physical counterparts. Overview A pan pot has an internal architecture which determines how much of a source signal is sent to the left and right buses. "Pan pots split audio signals into left and right channels, each equipped with its own discrete gain (volume) control."Hodgson, Jay (2010). ''Understanding Records'', p.162. . This signal distribution is often called a taper or law. When centered (at 12 o'clock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadraphonic
Quadraphonic (or quadrophonic and sometimes quadrasonic) sound – equivalent to what is now called 4.0 surround sound – uses four audio channels in which speakers are positioned at the four corners of a listening space. The system allows for the reproduction of sound signals that are (wholly or in part) independent of one another. Four channel quadraphonic surround sound can be used to recreate the highly realistic effect of a three-dimensional live concert hall experience in the home. It can also be used to enhance the listener experience beyond the directional limitations of ordinary two channel stereo sound. Quadraphonic audio was the earliest consumer product in surround sound. Since it was introduced to the public in the early 1970s many thousands of quadraphonic recordings have been made. Quadraphonic sound was a commercial failure when first introduced due to a variety of technical issues and format incompatibilities. Four channel audio formats can be more expensive to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound Reinforcement System
A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. In many situations, a sound reinforcement system is also used to enhance or alter the sound of the sources on the stage, typically by using electronic effects, such as reverb, as opposed to simply amplifying the sources unaltered. A sound reinforcement system for a rock concert in a stadium may be very complex, including hundreds of microphones, complex live sound mixing and signal processing systems, tens of thousands of watts of amplifier power, and multiple loudspeaker arrays, all overseen by a team of audio engineers and technicians. On the other hand, a sound reinforcement system can be as simple as a small public address (PA) system, consisting of, for example, a single microphone connected to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pink Floyd
Pink Floyd are an English rock band formed in London in 1965. Gaining an early following as one of the first British psychedelic music, psychedelic groups, they were distinguished by their extended compositions, sonic experimentation, philosophical lyrics and elaborate Pink Floyd live performances, live shows. They became a leading band of the progressive rock genre, cited by some as the greatest progressive rock band of all time. Pink Floyd were founded in 1965 by Syd Barrett (guitar, lead vocals), Nick Mason (drums), Roger Waters (bass guitar, vocals), and Richard Wright (musician), Richard Wright (keyboards, vocals). Under Barrett's leadership, they released two charting singles and the successful debut album ''The Piper at the Gates of Dawn'' (1967). Guitarist and vocalist David Gilmour joined in December 1967; Barrett left in April 1968 due to deteriorating mental health. Waters became the primary lyricist and thematic leader, devising the concept album, concepts behind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rheostat
A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat. The measuring instrument called a potentiometer is essentially a voltage divider used for measuring electric potential (voltage); the component is an implementation of the same principle, hence its name. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment. Potentiometers operated by a mechanism can be used as position transducers, for example, in a joystick. Potentiometers are rarely used to directly control significant power (more than a watt), since the power dissipated in the potentiometer would be comparable to the power in the controlled load. Nomenclature There are a number of terms in the electronics industry used to describe certain types of potentiometers: * slide pot or slider pot: a potentiomete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Signal
An audio signal is a representation of sound, typically using either a changing level of electrical voltage for analog signals, or a series of binary numbers for digital signals. Audio signals have frequencies in the audio frequency range of roughly 20 to 20,000 Hz, which corresponds to the lower and upper limits of human hearing. Audio signals may be synthesized directly, or may originate at a transducer such as a microphone, musical instrument pickup, phonograph cartridge, or tape head. Loudspeakers or headphones convert an electrical audio signal back into sound. Digital audio systems represent audio signals in a variety of digital formats.Hodgson, Jay (2010). ''Understanding Records'', p.1. . An audio channel or audio track is an audio signal communications channel in a storage device or mixing console, used in operations such as multi-track recording and sound reinforcement. Signal flow Signal flow is the path an audio signal will take from source to the sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loudspeaker
A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or "loudspeaker", comprises one or more such speaker ''drivers'', an enclosure, and electrical connections possibly including a crossover network. The speaker driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound. An audio signal, typically from a microphone, recording, or radio broadcast, is amplified electronically to a power level capable of driving that motor in order to reproduce the sound corresponding to the original unamplified electronic signal. This is thus the opposite function to the microphone; indeed the ''dynamic speaker'' driver, by far the most common type, is a linear motor in the same basic configuration as the dynamic microphone which uses such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Wright (musician)
Richard William Wright (28 July 1943 – 15 September 2008) was an English musician who was a co-founder of the progressive rock band Pink Floyd. He played keyboards and sang, appearing on almost every Pink Floyd album and performing on all their tours. He was inducted into the Rock and Roll Hall of Fame in 1996 as a member of Pink Floyd. Wright grew up in Hatch End, Middlesex and met future Pink Floyd bandmates Roger Waters and Nick Mason while studying architecture at the Regent Street Polytechnic, London. After being joined by frontman and songwriter Syd Barrett, the group found commercial success in 1967. Barrett was replaced by David Gilmour in 1968, who, along with Waters and Wright, took over songwriting. Initially contributing more as a singer/songwriter, Wright later acted mainly as an arranger on compositions by Waters and Gilmour. He began to contribute less towards the end of the 1970s and left the band after touring ''The Wall'' in 1981. He rejoined as a se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen Elizabeth Hall
The Queen Elizabeth Hall (QEH) is a music venue on the South Bank in London, England, that hosts classical, jazz, and avant-garde music, talks and dance performances. It was opened in 1967, with a concert conducted by Benjamin Britten. The QEH was built along with the smaller Purcell Room as part of Southbank Centre arts complex. It stands alongside the Royal Festival Hall, which was built for the Festival of Britain of 1951, and the Hayward Gallery which opened in 1968. History The QEH stands on the site of a former shot tower, built as part of a lead works in 1826 and retained for the Festival of Britain. The QEH and the Purcell Room were built together by Higgs and Hill and opened in March 1967. The venue was closed for two years of renovations in September 2015, and reopened in April 2018. Description The QEH has over 900 seats and the Purcell Room in the same building has 360 seats. The two auditoriums were designed by a team led by Hubert Bennett, head of the arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Festival Hall
The Royal Festival Hall is a 2,700-seat concert, dance and talks venue within Southbank Centre in London. It is situated on the South Bank of the River Thames, not far from Hungerford Bridge, in the London Borough of Lambeth. It is a Grade I listed building, the first post-war building to become so protected (in 1981). The London Philharmonic Orchestra, the Philharmonia Orchestra, the Orchestra of the Age of Enlightenment, the London Sinfonietta, Chineke! and Aurora are resident orchestras at Southbank Centre. The hall was built as part of the Festival of Britain for London County Council, and was officially opened on 3 May 1951. When the LCC's successor, the Greater London Council, was abolished in 1986, the Festival Hall was taken over by the Arts Council, and managed together with the Queen Elizabeth Hall and Purcell Room (opened 1967) and the Hayward Gallery (1968), eventually becoming an independent arts organisation, now known as the Southbank Centre, in April 1998. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria And Albert Museum
The Victoria and Albert Museum (often abbreviated as the V&A) in London is the world's largest museum of applied arts, decorative arts and design, housing a permanent collection of over 2.27 million objects. It was founded in 1852 and named after Queen Victoria and Prince Albert. The V&A is located in the Royal Borough of Kensington and Chelsea, in an area known as "Albertopolis" because of its association with Prince Albert, the Albert Memorial and the major cultural institutions with which he was associated. These include the Natural History Museum, the Science Museum, the Royal Albert Hall and Imperial College London. The museum is a non-departmental public body sponsored by the Department for Digital, Culture, Media and Sport. As with other national British museums, entrance is free. The V&A covers and 145 galleries. Its collection spans 5,000 years of art, from ancient times to the present day, from the cultures of Europe, North America, Asia and North Africa. Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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