Disc jockey

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A disc jockey, also known as DJ (or deejay), is a person who selects and plays recorded music for an audience. Originally, disk referred to phonograph records, while disc referred to the Compact Disc, and has become the more common spelling. Today, the term includes all forms of music playback, no matter the source.

There are several types of disc jockeys. Radio DJs introduce and play music that is broadcast on AM, FM, shortwave, digital, or internet radio stations. Club DJs select and play music in bars, nightclubs, discothèques, at raves, or even in a stadium. Hip hop disc jockeys select and play music using multiple turntables, often to back up one or more MCs, and they may also do turntable scratching to create percussive sounds. In reggae, the disc jockey (deejay) is a vocalist who raps, "toasts", or chats over pre-recorded rhythm tracks while the individual choosing and playing them is referred to as a selector.[1] Mobile DJs travel with portable sound systems and play recorded music at a variety of events.


Equipment and techniques

DJ equipment may consist of:

  • Sound recordings in a DJ's preferred medium (e.g., vinyl records, Compact Discs, computer media files, etc.);
  • A combination of two devices (or only one, if playback is digital) to play sound recordings, for alternating back and forth to create a continuous playback of music (e.g., record players, Compact Disc players, computer media players such as an MP3 player, etc.);
  • A multiple Sequencer which can mix MIDI tracks with Digital Audio
  • A sound system for amplification or broadcasting of the recordings (e.g., portable audio system, PA system) or a radio broadcasting system;
  • A DJ mixer, which is an electronic (usually 2- or 4-channel) audio mixer usually equipped with a crossfader used to smoothly go from one song to another, using two or more playback devices;
  • Headphones, used to listen to one recording while the other recording is being played to the audience; and
  • Optionally, a microphone, so that the DJ can introduce songs and speak to the audience.

Other equipment could or can be added to the basic DJ setup (above), providing unique sound manipulations. Such devices include, but are not limited to:

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