CHD 8-432, User Manual

Page: 9 / 12

JP4-KBD
MIDI Interface forJupiter-4 Keyboard
Model 8-432 ver. 2.0
Copyright © 2012 CHD Elektroservis
All rights reserved. No part of this publication may be reproduced in any form without written permission of CHD Elektroservis.
9
CC 18 – Pitch Wheel Range
Received value of the controller (second databyte of the command) adjusts the “Pitch Wheel
Range “ parameter - see pic. 5 and tab. 5. Value of the parameter is adjusted only temporarily - until
next instrument restart.
Table 5 – Conversion of CC 18 value to ”Pitch Wheel Range“ parameter value (in semitones)
CC Range CC Range CC Range CC Range CC Range
0 ~ 4
±
0
25 ~ 29
±
5
50 ~ 54
±
10
75 ~ 79
±
15
100 ~ 104
±
20
5 ~ 9
±
1
30 ~ 34
±
6
55 ~ 59
±
11
80 ~ 84
±
16
105 ~ 109
±
21
10 ~ 14
±
2
35 ~ 39
±
7
60 ~ 64
±
12
85 ~ 89
±
17
110 ~ 114
±
22
15 ~ 19
±
3 40 ~ 44
±
8 65 ~ 69
±
13 90 ~ 94
±
18 115 ~ 119
±
23
20 ~ 24
±
4
45 ~ 49
±
9
70 ~ 74
±
14
95 ~ 99
±
19
120 ~ 127
±
24
Pic. 5 – Conversion of CC 18 value to ”Pitch Wheel Range“ parameter value
CC 19 – Arpeggio Clock Rate
Received value of the controller (second databyte of the command) adjusts the “Arpg Clock
Rate“ parameter. Value of the parameter is adjusted only temporarily - until next instrument restart.
3.1.3. PITCH WHEEL (PITCH BEND)
“Pitch Wheel“ (“Pitch Bend“) has standard function – it changes the tune of played notes. The
minimum / maximum range is adjusted by the “Pitch Wheel Range“ parameter (
±
0 to
±
24 semitones).
Since the interface does not have direct access to control voltage (CV) of tone generators, the
tone is not detuned continuously but in semitone steps . Together with note tune changes the
envelope generators are triggered.