Yamaha S70XS Reference Manual page 149

Brightness (Control #74)
Messages which adjust the filter cutoff frequency set for each Part. The value set here is an offset value
which will be added to or subtracted from the voice data.
Decay Time (Control #75)
Messages which adjust the AEG decay time set for each Part. The value set here is an offset value which
will be added to or subtracted from the Voice data.
Effect1 Depth (Reverb Send Level) (Control #91)
Messages which adjust the send level for the Reverb effect.
Effect2 Depth (Chorus Send Level) (Control #93)
Messages which adjust the send level for the Chorus effect.
Data Increment (Control #96)
Data Decrement (Control #97)
Messages which increase or decrease the MSB value of pitch bend sensitivity, fine tune, or coarse tune in
steps of 1. You will need to assign one of those parameters using the RPN in the external device in
advance.
RPN LSB (Registered Parameter Number LSB) (Control #100)
RPN MSB (Registered Parameter Number MSB) (Control #101)
Used primarily as offset values for pitch bend sensitivity, tuning, and other part settings.
First send the RPN MSB and RPN LSB to specify the parameter which is to be controlled. Then use Data
Increment/Decrement to set the value of the specified parameter.
Note that once the RPN has been set for a channel, subsequent data entry will be recognized as the same
RPN's value change. Therefore after you use the RPN, you should set a Null (7FH, 7FH) value to avoid
unexpected results.
The following RPN numbers can be received.
RPN MSB RPN LSB
00H 00H
00H 01H
00H 02H
7FH 7FH
Reference Manual
PARAMETER
Pitch Bend Sensitivity
Fine Tune
Coarse Tune
Null
Appendix
Basic Structure
Functional Blocks
Tone Generator
A/D Input
Arpeggio
Sequencer
Audio Record/Play
Controller
Effect
Internal Memory
Reference
Voice
Performance
Multi
SEQ Play
Master
Remote
File
Audio Rec/Play
Utility
Appendix
About MIDI
Display Messages
Troubleshooting
149