Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

Quadraphonic sound

Index Quadraphonic sound

Quadraphonic (or Quadrophonic and sometimes Quadrasonic) sound – equivalent to what is now called 4.0 surround sound – uses four channels in which speakers are positioned at the four corners of the listening space, reproducing signals that are (wholly or in part) independent of one another. [1]

71 relations: Ambiophonics, Ambisonic UHJ format, Ambisonics, Audio Engineering Society, Audio signal, Azimuth Co-ordinator, BBC, BBC Online, BBC Radio 3, BBC Radio 4, Buda, Texas, Chicago, Cliff Richard, Columbia Records, Compatible Discrete 4, Demodulation, Denon, Dolby Digital, DTS (sound system), DVD-Audio, Dynaco, Dynaquad, Electro-Voice, EMI, FM broadcasting, Four-channel Compact Disc Digital Audio, Games for May, Hafler circuit, Home cinema, Jim Fosgate, JVC, Karlheinz Stockhausen, KEXL, KKHI (defunct), Kontakte, KRMH, KUDL, London, Matrix decoder, Matrix H, Multitrack recording, National Research Development Corporation, Octophonic sound, Peter Scheiber, Pink Floyd, Precedence effect, QS Regular Matrix, Quadrafile, Quadraphonic open reel tape, Queen Elizabeth Hall, ..., Radio, RCA Records, Reel-to-reel audio tape recording, Sacramento, California, San Francisco, San Francisco Opera, Sansui Electric, Sarasota, Florida, Sony, Sound, Stereo Quadraphonic, Stereo-4, Super Audio CD, Surround sound, The Proms, UD-4, Ultrasound, Victoria and Albert Museum, WFMT, WQSR, 8-track tape. Expand index (21 more) »


Ambiophonics is a method in the public domain that employs digital signal processing (DSP) and two loudspeakers directly in front of the listener in order to improve reproduction of stereophonic and 5.1 surround sound for music, movies, and games in home theaters, gaming PCs, workstations, or studio monitoring applications.

New!!: Quadraphonic sound and Ambiophonics · See more »

Ambisonic UHJ format

Ambisonic UHJ format is a development of the Ambisonic surround sound system designed to be compatible with mono and stereo media.

New!!: Quadraphonic sound and Ambisonic UHJ format · See more »


Ambisonics is a full-sphere surround sound format: in addition to the horizontal plane, it covers sound sources above and below the listener.

New!!: Quadraphonic sound and Ambisonics · See more »

Audio Engineering Society

Established in 1948, the Audio Engineering Society (AES) draws its membership from engineers, scientists, other individuals with an interest or involvement in the professional audio industry.

New!!: Quadraphonic sound and Audio Engineering Society · See more »

Audio signal

An audio signal is a representation of sound, typically as an electrical voltage for analog signals and a binary number for digital signals.

New!!: Quadraphonic sound and Audio signal · See more »

Azimuth Co-ordinator

The Azimuth Co-ordinator was the first panning control for a quadraphonic sound system, at that time a new concept.

New!!: Quadraphonic sound and Azimuth Co-ordinator · See more »


The British Broadcasting Corporation (BBC) is a British public service broadcaster.

New!!: Quadraphonic sound and BBC · See more »

BBC Online

BBC Online, formerly known as BBCi, is the BBC's online service.

New!!: Quadraphonic sound and BBC Online · See more »

BBC Radio 3

BBC Radio 3 is a British radio station operated by the BBC.

New!!: Quadraphonic sound and BBC Radio 3 · See more »

BBC Radio 4

BBC Radio 4 is a radio station owned and operated by the British Broadcasting Corporation (BBC) that broadcasts a wide variety of spoken-word programmes including news, drama, comedy, science and history.

New!!: Quadraphonic sound and BBC Radio 4 · See more »

Buda, Texas

Buda is a city in Hays County, Texas, United States.

New!!: Quadraphonic sound and Buda, Texas · See more »


Chicago, officially the City of Chicago, is the third most populous city in the United States, after New York City and Los Angeles.

New!!: Quadraphonic sound and Chicago · See more »

Cliff Richard

Sir Cliff Richard, (born Harry Rodger Webb, 14 October 1940) is a British pop singer, musician, performer, actor and philanthropist.

New!!: Quadraphonic sound and Cliff Richard · See more »

Columbia Records

Columbia Records is an American record label owned by Sony Music Entertainment, a subsidiary of Sony Corporation of America, the North American division of Japanese conglomerate Sony.

New!!: Quadraphonic sound and Columbia Records · See more »

Compatible Discrete 4

Compatible Discrete 4, also known as Quadradisc or CD-4 (not to be confused with compact disc) was as a discrete four-channel quadraphonic system for phonograph records.

New!!: Quadraphonic sound and Compatible Discrete 4 · See more »


Demodulation is extracting the original information-bearing signal from a carrier wave.

New!!: Quadraphonic sound and Demodulation · See more »


is a Japanese electronics company that was involved in the early stages of development of digital audio technology, while specializing in the manufacture of high-fidelity professional and consumer audio equipment.

New!!: Quadraphonic sound and Denon · See more »

Dolby Digital

Dolby Digital is the name for audio compression technologies developed by Dolby Laboratories.

New!!: Quadraphonic sound and Dolby Digital · See more »

DTS (sound system)

DTS (Dedicated To Sound) is a series of multichannel audio technologies owned by Xperi Corporation (formerly known as Digital Theater Systems, Inc.), an American company specializing in digital surround sound formats used for both commercial/theatrical and consumer grade applications.

New!!: Quadraphonic sound and DTS (sound system) · See more »


DVD-Audio (commonly abbreviated as DVD-A) is a digital format for delivering high-fidelity audio content on a DVD.

New!!: Quadraphonic sound and DVD-Audio · See more »


Founded by David Hafler and Ed Laurent in Philadelphia, Pennsylvania in 1955, Dynaco was an American hi-fi audio system manufacturer popular in the 1960s and 1970s for its wide range of affordable, yet high quality audio components..

New!!: Quadraphonic sound and Dynaco · See more »


Dynaquad, or DY, was a matrix 4-channel quadraphonic sound system developed by Dynaco in 1969.

New!!: Quadraphonic sound and Dynaquad · See more »


Electro-Voice (commonly referred to as EV) is an American manufacturer of audio equipment, including microphones, amplifiers, and loudspeakers, focused on pro audio applications such as sound reinforcement and consumer electronics such as car audio.

New!!: Quadraphonic sound and Electro-Voice · See more »


EMI Group Limited (originally an initialism for Electric and Musical Industries and also referred to as EMI Records Ltd.) was a British multinational conglomerate founded in March 1931 in London.

New!!: Quadraphonic sound and EMI · See more »

FM broadcasting

FM broadcasting is a method of radio broadcasting using frequency modulation (FM) technology.

New!!: Quadraphonic sound and FM broadcasting · See more »

Four-channel Compact Disc Digital Audio

Compact Disc recordings contain two channels of 44.1-kHz 16-bit linear PCM audio.

New!!: Quadraphonic sound and Four-channel Compact Disc Digital Audio · See more »

Games for May

Games for May was a concert, which took place at the Queen Elizabeth Hall on 12 May 1967, was one of the first significant concert events held by Pink Floyd.

New!!: Quadraphonic sound and Games for May · See more »

Hafler circuit

The Hafler circuit is a passive electronics circuit with the aim of getting derived surround sound or ambiophony from regular stereo recordings without using costly electronics.

New!!: Quadraphonic sound and Hafler circuit · See more »

Home cinema

Home cinema, also called home theater or home theatre, refers to home entertainment audio-visual systems that seek to reproduce a movie theater experience and mood using consumer electronics-grade video and audio equipment that is set up in a room or backyard of a private home.

New!!: Quadraphonic sound and Home cinema · See more »

Jim Fosgate

James M. Fosgate (born c. 1945 in Indianapolis, Indiana) is an American inventor, engineer and businessman.

New!!: Quadraphonic sound and Jim Fosgate · See more »


,, usually referred to as JVC or The Japan Victor Company, is a Japanese international professional and consumer electronics corporation based in Yokohama.

New!!: Quadraphonic sound and JVC · See more »

Karlheinz Stockhausen

Karlheinz Stockhausen (22 August 1928 – 5 December 2007) was a German composer, widely acknowledged by critics as one of the most important but also controversial composers of the 20th and early 21st centuries.

New!!: Quadraphonic sound and Karlheinz Stockhausen · See more »


KEXL (97.5 FM) is a radio station broadcasting a Hot Adult Contemporary format.

New!!: Quadraphonic sound and KEXL · See more »

KKHI (defunct)

KKHI was a classical music station in San Francisco, California operating on both AM at 1550 kHz and FM at 95.7 MHz.

New!!: Quadraphonic sound and KKHI (defunct) · See more »


Kontakte ("Contacts") is an electronic music work by Karlheinz Stockhausen, realized in 1958–60 at the Westdeutscher Rundfunk (WDR) electronic-music studio in Cologne with the assistance of Gottfried Michael Koenig.

New!!: Quadraphonic sound and Kontakte · See more »


KRMH (89.7 FM) is a high school radio station broadcasting a variety music format and licensed to Red Mesa, Arizona, United States.

New!!: Quadraphonic sound and KRMH · See more »


KUDL (106.5 FM) is a radio station in Sacramento, California.

New!!: Quadraphonic sound and KUDL · See more »


London is the capital and most populous city of England and the United Kingdom.

New!!: Quadraphonic sound and London · See more »

Matrix decoder

Matrix decoding is an audio technology where a finite number of discrete audio channels (e.g., 2) are decoded into a larger number of channels on play back (e.g., 5).

New!!: Quadraphonic sound and Matrix decoder · See more »

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.

New!!: Quadraphonic sound and Matrix H · See more »

Multitrack recording

Multitrack recording (MTR)—also known as multitracking, double tracking, or tracking—is a method of sound recording developed in 1955 that allows for the separate recording of multiple sound sources or of sound sources recorded at different times to create a cohesive whole.

New!!: Quadraphonic sound and Multitrack recording · See more »

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.

New!!: Quadraphonic sound and National Research Development Corporation · See more »

Octophonic sound

Octophonic sound is a form of audio reproduction that presents eight discrete audio channels using eight speakers.

New!!: Quadraphonic sound and Octophonic sound · See more »

Peter Scheiber

Peter Scheiber is considered to be the originator of the matrix format, a basic mathematical formula used to convert four channels into two which is what most matrix four channel systems are based on.

New!!: Quadraphonic sound and Peter Scheiber · See more »

Pink Floyd

Pink Floyd were an English rock band formed in London in 1965.

New!!: Quadraphonic sound and Pink Floyd · See more »

Precedence effect

The precedence effect or law of the first wavefront is a binaural psychoacoustic effect.

New!!: Quadraphonic sound and Precedence effect · See more »

QS Regular Matrix

Quadraphonic Sound (originally called Quadphonic Synthesizer, and later referred to as RM or Regular Matrix)http://www.reddiamondaudio.net/quadraphonic_qs_system.html was a matrix 4-channel quadraphonic sound system based on the same principles as laid down by Peter Scheiber, but developed by engineer Ryosuke Ito of Sansui in the early 1970s.

New!!: Quadraphonic sound and QS Regular Matrix · See more »


Quadrafile was an LP recording released in 1976 intended as a demonstration of four different systems of quadraphonic sound reproduction on phonograph records.

New!!: Quadraphonic sound and Quadrafile · See more »

Quadraphonic open reel tape

Quadraphonic open reel tape or Q4 was the first medium for quadraphonic sound recording and playback, introduced to the American market by the Vanguard Recording Society in June 1969.

New!!: Quadraphonic sound and Quadraphonic open reel tape · See more »

Queen Elizabeth Hall

The Queen Elizabeth Hall (QEH) is a music venue on the South Bank in London, England, that hosts daily classical, jazz, and avant-garde music and dance performances.

New!!: Quadraphonic sound and Queen Elizabeth Hall · See more »


Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.

New!!: Quadraphonic sound and Radio · See more »

RCA Records

RCA Records (formerly legally traded as the RCA Records Label) is an American record label owned by Sony Music, a subsidiary of Sony Corporation of America.

New!!: Quadraphonic sound and RCA Records · See more »

Reel-to-reel audio tape recording

Reel-to/open-reel audio tape recording is the form of magnetic tape audio recording in which the recording medium is held on a reel, rather than being securely contained within a cassette.

New!!: Quadraphonic sound and Reel-to-reel audio tape recording · See more »

Sacramento, California

Sacramento is the capital city of the U.S. state of California and the seat of Sacramento County.

New!!: Quadraphonic sound and Sacramento, California · See more »

San Francisco

San Francisco (initials SF;, Spanish for 'Saint Francis'), officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California.

New!!: Quadraphonic sound and San Francisco · See more »

San Francisco Opera

San Francisco Opera (SFO) is an American opera company, based in San Francisco, California.

New!!: Quadraphonic sound and San Francisco Opera · See more »

Sansui Electric

is a Japanese manufacturer of audio and video equipment.

New!!: Quadraphonic sound and Sansui Electric · See more »

Sarasota, Florida

Sarasota is a city in Sarasota County on the southwestern coast of the U.S. state of Florida.

New!!: Quadraphonic sound and Sarasota, Florida · See more »


is a Japanese multinational conglomerate corporation headquartered in Kōnan, Minato, Tokyo.

New!!: Quadraphonic sound and Sony · See more »


In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.

New!!: Quadraphonic sound and Sound · See more »

Stereo Quadraphonic

SQ Quadraphonic ("Stereo Quadraphonic") was a matrix 4-channel quadraphonic sound system for vinyl LP records.

New!!: Quadraphonic sound and Stereo Quadraphonic · See more »


Stereo-4, also known as EV (from Electro-Voice) or EV-4, was a matrix 4-channel quadraphonic sound system developed in 1970 by Leonard Feldman and Jon Fixler.

New!!: Quadraphonic sound and Stereo-4 · See more »

Super Audio CD

Super Audio CD (SACD) is a read-only optical disc for audio storage, introduced in 1999.

New!!: Quadraphonic sound and Super Audio CD · See more »

Surround sound

Surround sound is a technique for enriching the sound reproduction quality of an audio source with additional audio channels from speakers that surround the listener (surround channels).

New!!: Quadraphonic sound and Surround sound · See more »

The Proms

The Proms 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.

New!!: Quadraphonic sound and The Proms · See more »


UD-4 was a discrete four-channel quadraphonic sound system for phonograph records introduced by Nippon Columbia (Denon) in 1974.

New!!: Quadraphonic sound and UD-4 · See more »


Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.

New!!: Quadraphonic sound and Ultrasound · See more »

Victoria and Albert Museum

The Victoria and Albert Museum (often abbreviated as the V&A) in London is the world's largest museum of decorative arts and design, housing a permanent collection of over 2.3 million objects.

New!!: Quadraphonic sound and Victoria and Albert Museum · See more »


WFMT is an FM radio station in Chicago, Illinois, featuring a format of fine arts, classical music programming, and shows exploring such genres as folk and jazz.

New!!: Quadraphonic sound and WFMT · See more »


WQSR (102.7 FM, "102.7 Jack FM") is a commercial FM radio station licensed to serve Baltimore, Maryland.

New!!: Quadraphonic sound and WQSR · See more »

8-track tape

The 8-track tape (formally Stereo 8; commonly known as the eight-track cartridge, eight-track tape, or simply eight-track) is a magnetic tape sound-recording technology that was popular in the United States from the mid-1960s to the early 1980s, when the Compact Cassette format took over.

New!!: Quadraphonic sound and 8-track tape · See more »

Redirects here:

4 channel, 4-channel, CD-4 sound, Compatible discrete four-channel sound, Four channel, Four-channel stereo, Quadraphonic, Quadraphonic stereo, Quadraphonics, Quadraphony, Quadrophonic, Quadrophonics, Quadrophony, Quatravox.


[1] https://en.wikipedia.org/wiki/Quadraphonic_sound

Hey! We are on Facebook now! »