The Soundfield microphone
• This microphone is equipped with
4 subcardioid capsules, placed on
the faces of a thetraedron
• The signal are analogically
processed in its own
special control box, which derives 4 “B-format”
signals
• These signals are:
• W : omnidirectional (sound pressure)
• X,Y,Z : the three figure-of-eight
microphones aligned with the ISO cartesian reference
system – these signals are the cartesian components of the “particle velocity” vector
