Based on the principles of Ambisonic recording developed by Michael Gerzon and Peter Craven during the 1970's, TetraMic allows you to place a single exceedingly accurate tetrahedral microphone in a sound field, record four channels of audio in "A" format, transform them using software into "B" format (W, X, Y and Z), and later interpret those four channels to essentially any single-point configuration of microphones:

• omni

• sub-cardioid

• cardioid

• super-cardioid

• hyper-cardioid

• figure-8

• multiple combinations of those including:

  • Blumlein (two crossed figure-8 microphones in the azimuth plane))

  • Height-enabled Blumlein (three orthogonal figure-8 microphones)

  • M/S (Mid/Side)

  • XY (two crossed cardioids) separated by any arbitrary angle

  • binaural, using personal HRTF and head tracking information

  • Three hypercardioids facing forward and two cardioids facing rearward (for 5.1 surround)

  • any combination and arrangement of microphones for surround sound or other effects

The apparent orientation can be rotated, tilted, tumbled or zoomed at will.
The four channels of "B" format can also be interpreted into almost any playback format, including:

• mono (without "sum to mono" phase cancellation issues)

• stereo

• binaural, using HRTF information

• four speakers arranged as a square or rectangle

• six speakers arranged as a regular or irregular hexagon

• 5.1 (ITU)

• 7.1

• 10.1

• any of the above plus height information (e.g., two hexagonal arrays of speakers, one above the listener and one below)

• and many, many more.