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Matrix H
''Matrix H'' was developed by BBC engineers in the late 1970s to carry quadraphonic sound via FM radio in a way that would be most compatible with existing mono and stereo receivers. History Test broadcasts Several quadraphonic test programs were made for Radios 3 and 4, including a number of plays and some Promenade Concerts, while Radio 1 carried quadraphonic session recordings by various bands. On April 30, 1977 the first program was transmitted, followed by seven further transmissions during the following week. The experimental broadcasts lasted for one year, after which the BBC assessed the public reaction. Since very few listeners had suitable decoders, the BBC arranged demonstrations at the Langham Gallery in London. The existing matrix formats where tested first. The "H" has no meaning; they called the first matrix assessed Matrix A, and then worked through the alphabet. Matrix H emerged as the best solution for mono compatibility and radio transmission. Although t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadraphonic Sound
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] |
Langham Gallery
Langham may refer to: Places Australia * The Langham, Melbourne, a luxury hotel in Melbourne Canada *Langham, Saskatchewan England * Langham, Dorset *Langham, Essex * Langham, Norfolk * Langham, Northumberland *Langham, Rutland * Langham, Somerset *Langham, Suffolk *Langham Hotel, London, a hotel in London *The Langham School, an alternative name for Park View School, West Green United States * The Langham, New York, a luxury hotel in Manhattan, New York City * The Langham (apartment building), a luxury apartment building in Manhattan, New York City * The Langham Huntington, Pasadena, a luxury hotel in Pasadena, California People * Langham Baronets, a title in the baronetcy of England **Sir Charles Langham, 13th Baronet (1870–1951), English entomologist and photographer *Antonio Langham (born 1972), former American professional football player *Bianca Langham-Pritchard (born 1975), Australian field hockey player *Chris Langham (born 1949), British comedy actor * Derald ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Research Development Corporation
The National Research Development Corporation (NRDC) was a non-departmental government body established by the British Government to transfer technology from the public sector to the private sector. History The NRDC was established by Attlee's Labour government in 1948 to meet a perceived need at the time to exploit the many products that had been developed during World War II by the Defence Research Establishments. It was set up by the Board of Trade under the Development of Inventions Act 1948 and the first managing director was Lord Giffard. The NRDC was established in India in 1953 to help develop and promote technologies developed at various national R&D institutions. The first commercial size hovercraft, the SR.N1, was built under a contract let by the NRDC to Saunders-Roe in 1958. In 1981, the NRDC was combined with the National Enterprise Board ('NEB') to form the British Technology Group ('BTG'). Operations Typically the NRDC would patent the product for commerci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambisonic UHJ Format
Ambisonic UHJ format is a development of the Ambisonic surround sound system designed to be compatible with mono and stereo media. It is a hierarchy of systems in which the recorded soundfield will be reproduced with a degree of accuracy that varies according to the available channels. Although UHJ permits the use of up to four channels (carrying full-sphere with-height surround), only the 2-channel variant is in current use (as it is compatible with currently-available 2-channel media). In Ambisonics, UHJ is also known as "C-Format". The UHJ hierarchy Ambisonic B-Format is the standard format for use in the studio. While it is possible to distribute B-Format recordings for decoding and listening by end-users, this is only starting to be more widespread with the advent of software-based players. Traditionally, Ambisonic recordings have been distributed in the form of 2-channel discs, CDs etc. using the 2-channel version of the UHJ encoding hierarchy, which, unlike B-Format, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambisonics
Ambisonics is a ''full-sphere'' surround sound format: in addition to the horizontal plane, it covers sound sources above and below the listener. Unlike some other multichannel surround formats, its transmission channels do not carry speaker signals. Instead, they contain a speaker-independent representation of a sound field called ''B-format'', which is then ''decoded'' to the listener's speaker setup. This extra step allows the producer to think in terms of source directions rather than loudspeaker positions, and offers the listener a considerable degree of flexibility as to the layout and number of speakers used for playback. Ambisonics was developed in the UK in the 1970s under the auspices of the British National Research Development Corporation. Despite its solid technical foundation and many advantages, Ambisonics had not until recently been a commercial success, and survived only in niche applications and among recording enthusiasts. With the easy availability of power ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio & Design's Ambisonic Mastering System
Audio most commonly refers to sound, as it is transmitted in signal form. It may also refer to: Sound * Audio signal, an electrical representation of sound *Audio frequency, a frequency in the audio spectrum * Digital audio, representation of sound in a form processed and/or stored by computers or digital electronics *Audio, audible content (media) in audio production and publishing *Semantic audio, extraction of symbols or meaning from audio * Stereophonic audio, method of sound reproduction that creates an illusion of multi-directional audible perspective * Audio equipment Entertainment *AUDIO (group), an American R&B band of 5 brothers formerly known as TNT Boyz and as B5 * ''Audio'' (album), an album by the Blue Man Group * ''Audio'' (magazine), a magazine published from 1947 to 2000 *Audio (musician), British drum and bass artist * "Audio" (song), a song by LSD Computing *, an HTML element, see HTML5 audio See also *Acoustic (other) *Audible (other) *A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QS Regular Matrix
Quadraphonic Sound (originally called Quadphonic Synthesizer, and later referred to as RM or Regular Matrix) was a matrix 4-channel quadraphonic sound system for phonograph records. The system was based on technology created by Peter Scheiber, but further developed by engineer Ryosuke Ito of Sansui in the early 1970s. The technology was freely licensed and was adopted by many record labels including ABC, Advent, BluesWay, Candide, Command, Decca, Impulse, Longines, MCA, Passport, Pye, Turnabout and Vox. Hundreds of recordings using this format were released on vinyl LP records during the 1970s. RM (''Regular Matrix'') was often used a synonym for QS, but was actually a standard set by the Japanese governing body, which also embraced the QM (''Quadraphonic Matrix'', consisting of Stereo-4 and Dynaquad) and QX (''QuadXtra'', based on D.H. Cooper "Dual-Triphonic") matrix systems. The QS matrix has been found to offer the advantages of excellent diagonal separation and stereo c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matrix Decoder
Matrix decoding is an audio technology where a small number of discrete audio channels (e.g., 2) are decoded into a larger number of channels on play back (e.g., 5). The channels are generally, but not always, arranged for transmission or recording by an encoder, and decoded for playback by a decoder. The function is to allow multichannel audio, such as quadraphonic sound or surround sound to be encoded in a stereo signal, and thus played back as stereo on stereo equipment, and as surround on surround equipment – this is "compatible" multichannel audio. Process Matrix encoding does ''not'' allow one to encode several channels in ''fewer'' channels without losing information: one cannot fit 5 channels into 2 (or even 3 into 2) without losing information, as this loses dimensions: the decoded signals are not independent. The idea is rather to encode something that will both be an acceptable approximation of the surround sound when decoded, and acceptable (or even superior) stereo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London
London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a major settlement for two millennia. The City of London, its ancient core and financial centre, was founded by the Romans as '' Londinium'' and retains its medieval boundaries.See also: Independent city § National capitals The City of Westminster, to the west of the City of London, has for centuries hosted the national government and parliament. Since the 19th century, the name "London" has also referred to the metropolis around this core, historically split between the counties of Middlesex, Essex, Surrey, Kent, and Hertfordshire, which largely comprises Greater London, governed by the Greater London Authority.The Greater London Authority consists of the Mayor of London and the London Assembly. The London Mayor is distinguished fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC Radio 1
BBC Radio 1 is a British national radio station owned and operated by the BBC. It specialises in modern popular music and current chart hits throughout the day. The station provides alternative genres at night, including electronica, dance, hip hop and indie, while its sister station 1Xtra plays black contemporary music, including hip hop and R&B. Radio 1 also runs two online streams, Radio 1 Dance, dedicated to dance music, and Radio 1 Relax, dedicated to chill-out music; both are available to listen only on BBC Sounds. Radio 1 broadcasts throughout the UK on FM between and , digital radio, digital TV and BBC Sounds. It was launched in 1967 to meet the demand for music generated by pirate radio stations, when the average age of the UK population was 27. The BBC claims that it targets the 15–29 age group, and the average age of its UK audience since 2009 is 30. BBC Radio 1 started 24-hour broadcasting on 1 May 1991. According to RAJAR, the station broadcasts to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FM Radio
FM broadcasting is a method of radio broadcasting using frequency modulation (FM). Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to provide high fidelity sound over broadcast radio. FM broadcasting is capable of higher fidelity—that is, more accurate reproduction of the original program sound—than other broadcasting technologies, such as AM broadcasting. It is also less susceptible to common forms of interference, reducing static and popping sounds often heard on AM. Therefore, FM is used for most broadcasts of music or general audio (in the audio spectrum). FM radio stations use the very high frequency range of radio frequencies. Broadcast bands Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions: * In the former Soviet republics, and some former Eastern Bloc countries, the older 65.8–74 MHz band ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Proms
The BBC Proms or Proms, formally named the Henry Wood Promenade Concerts Presented by the BBC, is an eight-week summer season of daily orchestral classical music concerts and other events held annually, predominantly in the Royal Albert Hall in central London. The Proms were founded in 1895, and are now organised and broadcast by the BBC. Each season consists of concerts in the Royal Albert Hall, chamber music concerts at Cadogan Hall, additional Proms in the Park events across the UK on the Last Night of the Proms, and associated educational and children's events. The season is a significant event in British culture and in classical music. Czech conductor Jiří Bělohlávek described the Proms as "the world's largest and most democratic musical festival". ''Prom'' is short for ''promenade concert'', a term which originally referred to outdoor concerts in London's pleasure gardens, where the audience was free to stroll around while the orchestra was playing. In the conte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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