Editing Matrix decoder (section)

== Notation ==
The notation for matrix encoding consists of the number of original discrete audio channels separated by a colon from the number of encoded and decoded channels. For example, four channels encoded into two discrete channels and decoded back to four-channels would be notated:

 4:2:4

Some methods derive new channels from the existing ones, with no special encoding of the audio source. For example, five discrete channels decoded to six channels would be notated:

 5:5:6

Such derived channel "decoders" may take advantage of the [[Haas effect]], as well as audio cues inherent in the source channels.

Many matrix encoding methods have been developed: