Matrix decoder
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An audio technology where a finite number of discrete audio channels (eg., 2) are decoded into a larger number of channels on play back (eg., 5). The channels are generally, but not always, arranged for decoding by an encoder, and decoded for playback by a decoder.
The notation for matrix encoding consists of the number of discrete audio channels separated by a colon from the number of decoded channels. For example, two discrete channels decoded to four-channels would be notated:
2:4
Five discrete channels decoded to six channels would be notated:
5:6
Many matrix encoders take advantage of the Haas effect, as well as audio cues inherent in the source channels.
See also: