Nicam (728) stands for Near Instantaneous Companded Audio Multiplex, and is a system initially developed and adopted by the British BBC for Stereo TV transmissions. The system is being used now in most countries in Europe, and may become the standard in stereo TV transmissions. Audio information is digitally coded and transmitted alongside the video information, allowing mono sound reception in receivers not equipped with the NICAM system (down compatibility). A NICAM TV receiver is equipped with a decoder which converts the coded digital information into two stereo, analog sound channels.
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