45
Part VIII
MIDI Implementation
Notation
27
Value Notation
27.1
Hexadecimal Notation
MIDI implementation sometimes requires that data be
expressed in hexadecimal format. Hexadecimal values are
indicated by the letter “H” after the value. The hexadecimal
equivalents of decimal values 10 through 15 are expressed
as the letters A through F. The table below shows the
hexadecimal equivalents for decimal values 0 through 127,
which are often used in MIDI messages.
27.2
Binary Notation
When a MIDI implementation data value is expressed in
binary, the letter “B” (for “binary”) is affixed at the end of
the value. The table below shows the binary equivalents for
the decimal values 0 through 127, which are often used for
settings.
Decimal Hexadecimal Decimal Hexadecimal Decimal Hexadecimal Decimal Hexadecimal
0
00H
32
20H
64
40H
96
60H
1
01H
33
21H
65
41H
97
61H
2
02H
34
22H
66
42H
98
62H
3
03H
35
23H
67
43H
99
63H
4
04H
36
24H
68
44H
100
64H
5
05H
37
25H
69
45H
101
65H
6
06H
38
26H
70
46H
102
66H
7
07H
39
27H
71
47H
103
67H
8
08H
40
28H
72
48H
104
68H
9
09H
41
29H
73
49H
105
69H
10
0AH
42
2AH
74
4AH
106
6AH
11
0BH
43
2BH
75
4BH
107
6BH
12
0CH
44
2CH
76
4CH
108
6CH
13
0DH
45
2DH
77
4DH
109
6DH
14
0EH
46
2EH
78
4EH
110
6EH
15
0FH
47
2FH
79
4FH
111
6FH
16
10H
48
30H
80
50H
112
70H
17
11H
49
31H
81
51H
113
71H
18
12H
50
32H
82
52H
114
72H
19
13H
51
33H
83
53H
115
73H
20
14H
52
34H
84
54H
116
74H
21
15H
53
35H
85
55H
117
75H
22
16H
54
36H
86
56H
118
76H
23
17H
55
37H
87
57H
119
77H
24
18H
56
38H
88
58H
120
78H
25
19H
57
39H
89
59H
121
79H
26
1AH
58
3AH
90
5AH
122
7AH
27
1BH
59
3BH
91
5BH
123
7BH
28
1CH
60
3CH
92
5CH
124
7CH
29
1DH
61
3DH
93
5DH
125
7DH
30
1EH
62
3EH
94
5EH
126
7EH
31
1FH
63
3FH
95
5FH
127
7FH
Decimal
Hexadecimal
Binary
0
00H
00000000B
1
01H
00000001B
2
02H
00000010B
3
03H
00000011B
4
04H
00000100B
5
05H
00000101B
6
06H
00000110B
7
07H
00000111B
8
08H
00001000B
9
09H
00001001B
10
0AH
00001010B
11
0BH
00001011B
12
0CH
00001100B
13
0DH
00001101B
14
0EH
00001110B
15
0FH
00001111B
16
10H
00010000B
:
:
125
7DH
01111101B
126
7EH
01111110B
127
7FH
01111111B