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3D
Impulse Response (Gerzon, 1975)
Portable PC with 4-channels sound board
Original
Room
Sound Source
SoundField Microphone
B-format 4-channels signal
(WXYZ)
![](slide0165_image263.gif)
![](slide0165_image264.gif)
Measurement of B-format Impulse
Responses
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MLS or
sweep excitation signal
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Convolution of dry signals with
the B-format Impulse Responses
Sound
Source
Mono Mic.
![](slide0165_image274.gif)
![](slide0165_image275.gif)
B-format Imp. Resp.
of the original room
B-format 4-channels signal
(WXYZ)
Convolver
Ambisonics
decoder
Speaker array in the reproduction
room
![](slide0165_image281.gif)
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