VVMic for TetraMic
VVMic For TetraMic is a standalone Windows application for processing TetraMic and other ambisonic files. It can take A-Format or B-Format files as input and produce output for stereo, 5.1 or many other speaker configurations. You can listen in real time through standard Windows audio devices, or do off-line processing at faster than real time.
VVMic for TetraMic is provided free to TetraMic owners.
A-Format is a recording where each channel corresponds directly to one capsule in the microphone array. For TetraMic these signals are Left Front Up, Right Front Down, Left Back Down and Right Back Up.
B-Format is a general purpose representation of the soundfield based on spherical harmonics. For 1st order, as used here, this consists of one omni and three figure eight pattern signals called W, X, Y and Z.
Ambisonics is a method of recording and reproducing surround sound that was originally developed in the 1970s, mostly by Michael Gerzon. For more information about ambisonics see ambisonia.com.