About Chorus Macro - Roland SC-8820 Owner's Manual

About Chorus Macro

When you change the Chorus Macro, the eight chorus parameters will be automatically ad-
justed to the optimal values. Rather than individually adjusting each chorus parameter, it is
easier to first set the Chorus Macro (listed in the MIDI implementation as p.175), and then
modify only those parameters that you wish to modify. In particular when using MIDI Ex-
clusive messages, this method of making settings will minimize the amount of data.
Chorus1 Chorus2 Chorus3 Chorus4 FbChorus Flanger SDelay SDelayFb
Cho Level 64
Cho Pre-LPF 0
Cho Feedback 0
Cho Delay 112
Cho Rate 3
Cho Depth 5
Cho To Rev 0
Cho To Dly 0
To change the chorus type using MIDI messages, transmit the following System Ex-
clusive Message.
fig.8-1fe
DELAY:
F0 41 10 42 12 [ 40 01 38 ] [
Address: 40 01 38 (CHORUS MACRO)
Data: 00–07
00 = Chorus1, 01 = Chorus 2, 02 = Chorus 3, 03 = Chorus 4, 04 = Feed-
back Chorus, 05 = Flanger, 06 = Short Delay, 07 = Short Delay (FB)
Checksum: Refer to How to calculate the checksum (p.184).
<Example> Setting the chorus type to Chorus4
Transmit the following System Exclusive Message.
fig.8-1ke
F0 41 10 42 12 [ 40 01 38 ] [ 03 ] [ 04 ] F7
CHORUS MACRO
64 64 64
0 0 0
5 8 16
80 80 64
9 3 9
19 19 16
0 0 0
0 0 0
data checksum
address
. .
. .
] [ ] F7
address data checksum
checksum
Chorus 4
64 64 64 64
0 0 0
64 112 0 80
127 127 127 127
2 1 0
24 5 127 127
0 0 0
0 0 0
0
0
0
0
Also refer to MIDI Imple-
mentation (p.175).
Effects
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