All array systems are designed for univalence
(number of microphones = number of channels = number of loudspeakers)

2 Channels
~ Stereophony ~
Stereophonic dual microphone arrays covering only the front sound stage.
The various combinations of distance and angle bewteween the microphones is shown
in graphical form on the standard Stereophonic Recording Angle diagrams
.
3 Channels
~ Triphony ~
(not yet available)

Microphone arrays using three microphones to cover the front sound stage.
These arrays can be used as a main microphone array system for multichannel sound recording
using the left, centre and right channels. First reflections and reverberation can be electronically
generated, or with a second array normally placed in the reverberant field.
This array system can also be used in a three-channel / three-loudspeaker reproduction system
as an improvement on 2 channel stereophonic reproduction.

For initial experimentaion with three channel microphone arrays, the Front Triplet configuration
from a 5 channel array plan may be used simply be eliminating the Back Pair of microphones.
Obviously the Front Triplet set of microphones has been chosen as part of a 5 channel system,
and therefore only those arrays that can be "Critically Linked" to the Back Pair are shown.
However Critical Linking in the centre of the Front Triplet is always achieved (by Microphone
Position Offset) so no electronic offset is required.

4 Channels
Front Sound Stage Coverage (FSSC)

Microphone arrays using four microphones to cover the front sound stage. The center channel of the multichannel configuration is not used, and Critical Linking between the Lateral Segment Coverageand the rear or Back Segment Coverage is not taken into account.
Only ROOT arrays are shown for the time being, where the angle between each microphone pair corresponds to the corresponding segment coverage angle.

Surround Sound
~ Quadraphony ~
(not yet available)

Microphone arrays using four microphones to cover the complete surround sound field. Reproduction can be either the quadraphonic loudspeaker configuration or the L, R, Ls and Rs of the multichannel loudspeaker configuration
5 Channels
Front Sound Stage Coverage (FSSC)

Arrays using 5 microphones to cover only the front sound stage - Critical Linking between the
Lateral Segment Coverage and the rear or Back Segment Coverage is not taken into account.

Only root arrays are shown for the time being, where the angle between the microphones corresponds to the segment coverage angle.

Surround Sound
~ Multichannel ~

Microphones arrays using 5 microphones to cover the complete surround sound field.
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