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
• X,Y,Z : the three figure-of-eight microphones aligned with the
ISO cartesian
reference system
