Euphonix CS3000 - M;S Channel Operation Block Diagram

Section 4: Tutorial
Euphonix CS3000/2000 Operation Manual 4 - 59
M/S Channel Operation
Block Diagram
PWR
M2
PWR
UF
Stereo 1 Bus
L R
M1
L1
L2
A (Left)
B (Right)
Phase Reverse
Switched In
Phase Reverse
Switched In
-A
-B
B
A
B-A
A-B
Fader Source
Select
M1
M2
L2
LF
A+B
BAL
Mode 10: Stereo
Rev
Mode 6: Mono
L1
L2
M
S
Line In 1
Line In 2
L1
B-A
A-B
PWR
M2
PWR
Stereo 1 Bus
L R
M1
L1
L2
A+B
(M Mono)
A-B
(S Difference)
Phase Reverse
Switched Out
Phase Reverse
Switched In
A-B
-(A-B ) = -A+B
A+B
A+B
A
B
Fader Source
Select
M1
M2
L2
LF
BAL
Mode 7: Stereo
Line In 1
Line In 2
L1
The Math:
Left = M + S = 2A = (A+B) + (A-B)
Right = M - S = 2B = (A+B) - (A-B)
MS Decoder
M/S Encoder - Stereo Effect Signal Flow