ST450 MKII Owners Manual

SoundField ST450
User Guide
How Does It Work?
Page 6
HOW DOES IT WORK?
SoundField B-Format
The SoundField Four Capsule Array
The capsules are placed tightly together to eliminate the phase
problems associated with ‘spaced’ multi-microphone set-ups.
From a single point source sound is received from all directions,
reproducing a realistic listening experience.
The four outputs from the capsules of SoundField microphones (called SoundField A-
Format) are converted by the ST450 processor into four components known as
SoundField B-Format. These convey all of the information of the entire sound field, and
are the three directional vectors - Left/Right, Front/Rear and Up/Down - and absolute
pressure.
The signals from the four capsules
are fed to the ST450 processor
where it is converted into four
channels of SoundField B-Format,
known as W, X, Y and Z.
Mono, Stereo, Mid-Side, 5.1 and
all future surround formats can be
derived from this information.