Decoder

Decoder may refer to:

Data format converters

Music

Other uses

See also

DVD

DVD ( "digital versatile disc" or "digital video disc") is a digital optical disc storage format invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. The medium can store any kind of digital data and is widely used for software and other computer files as well as video programs watched using DVD players. DVDs offer higher storage capacity than compact discs while having the same dimensions.

Pre-recorded DVDs are mass-produced using molding machines that physically stamp data onto the DVD. Such discs are a form of DVD-ROMs, because data can only be read and not written or erased. Blank recordable DVD discs (DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM. Rewritable DVDs (DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased many times.

DVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format as well as for authoring DVD discs written in a special AVCHD format to hold high definition material (often in conjunction with AVCHD format camcorders). DVDs containing other types of information may be referred to as DVD data discs.

Gary Numan

Gary Anthony James Webb, better known professionally as Gary Numan (born 8 March 1958), is an English singer, songwriter, musician and record producer. Born in Hammersmith, London, he first entered the music industry as the lead singer of the new wave band Tubeway Army. After releasing two albums with the band, Numan released his debut solo album The Pleasure Principle in 1979. Most widely known for his chart-topping hits "Are 'Friends' Electric?" and "Cars", Numan achieved his peak of mainstream popularity in the late 1970s and early 1980s, but maintains a loyal cult following.

Numan, whose signature sound consists of heavy synthesizer hooks fed through guitar effects pedals, is considered a pioneer of commercial electronic music.

Early life and education

Born in Hammersmith, UK, Gary Anthony James Webb was the son of a British Airways bus driver based at Heathrow Airport. Webb was educated at Town Farm Junior School in Stanwell, Surrey and Ashford County Grammar School, then Slough Grammar School,Berkshire and Brooklands Technical College, Surrey. He joined the Air Training Corps as a teenager. He then briefly did various jobs including fork lift truck driver, air conditioning ventilator fitter, and clerk in an accounts department. When Numan was 15 years old, his father bought him a Gibson Les Paul guitar, which he regards as his most treasured possession. He played in various bands, including Mean Street and The Lasers, before forming Tubeway Army with his uncle, Jess Lidyard, and Paul Gardiner. His initial pseudonym was "Valerian", probably in reference to the hero in French science fiction comic series Valérian and Laureline. Later he picked the name "Numan" from an advert in the Yellow Pages for a plumber named A. Neumann.

Audio codec

An audio codec is a device or computer program capable of coding or decoding a digital data stream of audio.

In software, an audio codec is a computer program implementing an algorithm that compresses and decompresses digital audio data according to a given audio file or streaming media audio coding format. The objective of the algorithm is to represent the high-fidelity audio signal with minimum number of bits while retaining the quality. This can effectively reduce the storage space and the bandwidth required for transmission of the stored audio file. Most codecs are implemented as libraries which interface to one or more multimedia players.

In hardware, audio codec refers to a single device that encodes analog audio as digital signals and decodes digital back into analog. In other words, it contains both an analog-to-digital converter (ADC) and digital-to-analog converter (DAC) running off the same clock. This is used in sound cards that support both audio in and out, for instance.

DVD player

A DVD player is a device that plays discs produced under both the DVD-Video and DVD-Audio technical standards, two different and incompatible standards. Some DVD players will also play audio CDs. DVD players are connected to a television to watch the DVD content, which could be a movie, a recorded TV show, or other content.

The first DVD player was created by Sony Company in Taiwan in collaboration with Pacific Digital Company from the United States in 1994. Some manufacturers originally announced that DVD players would be available as early as the middle of 1996. These predictions were too optimistic. Delivery was initially held up for "political" reasons of copy protection demanded by movie studios, but was later delayed by lack of movie titles. The first players appeared in Japan in November 1, 1996, followed by U.S. players in March 26, 1997 with distribution limited to only 7 major cities for the first 6 months.

Players slowly trickled into other regions around the world. Prices for the first players in 1997 were $1000 and up. By the end of 2000, players were available for under $100 at discount retailers. In 2003 players became available for under $50. Six years after the initial launch, close to one thousand models of DVD players were available from over a hundred consumer electronics manufacturers.