MIDI Data Format/ MIDI-Datenformat/ Format des

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If you’re already very familiar with MIDI, or are using a computer
to control your music hardware with computer-generated MIDI
messages, the data provided in this section can help you to
control the PDP-400.
Falls Sie bereits mit MIDI vertraut sind oder einen Computer zur
Hardware-Steuerung einsetzen, werden Ihnen die nachfolgend
aufgeführten Daten bei der Steuerung des PDP-400
wahrscheinlich hilfreich sein.
Si vous vous êtes déjà familiarisés avec l’interface MIDI, ou si
vous utilisez un ordinateur pour commander votre matériel de
musique au moyen de messages MIDI générés par ordinateur,
les données suivantes vous aideront à commander le PDP-400.
Si ya está muy familiarizado con MIDI o si está usando una
computadora para controlar su música con mensajes MIDI
generados por computadora, los datos proporcionados en esta
sección le ayudarán a controlar la PDP-400.

1. NOTE ON/OFF

[9nH] [kkH] [vvH]
9nH= Note on/off event
(n= MIDI channel number)
kkH= Note number
(Transmission: 0FH~72H= D#-1~F#7,
Reception= 15H~6CH: A-1~C7)
vvH= Velocity
(Note on= 01H~7FH, Note off= 00H)
[8nH] [kkH] [vvH]
8nH= Note off event
(n= MIDI channel number)
kkH= Note number
(Transmission: 0FH~72H= D#-1~F#7,
Reception= 15H~6CH: A-1~C7)
vvH= Velocity (Note off= 00H~7FH)
* 8nH (note off) is receive only.
9nH (vvH=00H) used for transmission.

2. CONTROL CHANGE

[BnH] [ccH] [vvH]
BnH=Control event
(n= MIDI channel number)
ccH= Control number
vvH= Control value
• Modulation (Vibrato)
[BnH] [01H] [vvH]
n= MIDI channel number
vvH= Modulation
00H~0FH: Off : AM also off.
10H~1FH: 1 : Voice default AM
when greater than 10H
20H~2FH: 2
30H~3FH: 3
40H~4FH: 4
50H~5FH: 5
60H~6FH: 6
70H~7FH: 7
* LFO speed fixed for each voice
• Volume
[BnH] [07H] [vvH]
n= MIDI channel number
vvH= Volume (00H~7FH)
00H: -∞
6FH: -3dB
7FH: ±0dB
• Pan
[BnH] [0AH] [vvH]
n= MIDI channel number
vvH= Pan (00H~7FH)
00H~17H: Left 6
18H~1FH: Left 5
20H~27H: Left 4
28H~2FH: Left 3
30H~37H: Left 2
38H~3FH: Left 1
40H~47H: Center
48H: Voice default Pan
49H:
Scaling Pan (Standard) (receive only)
4AH:
Scaling Pan (Wide) (receive only)
4BH:
Scaling Pan (Narrow L) (receive only)
4CH:
Scaling Pan (Narrow C) (receive only)
4DH:
Scaling Pan (Narrow R) (receive only)
4EH:
Scaling Pan (Half L) (receive only)
4FH:
Scaling Pan (Half R) (receive only)
50H~57H: Right 1
58H~5FH: Right 2
60H~67H: Right 3
68H~6FH: Right 4
70H~77H: Right 5
78H~7FH: Right 6
• Expression
[BnH] [0BH] [vvH]
n= MIDI channel number
vvH= Expression (00H~7FH)
00H: -∞
6FH: -3dB
7FH= ±0dB
• Damper pedal
[BnH] [40H] [vvH]
n= MIDI channel number
vvH= Control value (00H~7FH)
00H~3FH: off
40H~7FH: on
• Sostenuto pedal
[BnH] [42H] [vvH]
n= MIDI channel number
vvH= Control value (00H~7FH)
00H~3FH: Off
40H~7FH: On
• Soft pedal
[BnH] [43H] [vvH]
n= MIDI channel number
vvH= Control value (00H~7FH)
00H~3FH: Off
40H~7FH: On
• Portamento control
[BnH] [54H] [vvH]
n= MIDI channel number
vvH= Control value (00H~7FH)
15H~6CH: Key Number
• Reverb depth
[BnH] [5BH] [vvH]
n= MIDI channel number
vvH= Reverb Depth (00H~7FH)
Individually adjustable for each channel.
3. MODE MESSAGES (receive only)
[BnH] [ccH] [vvH]
BnH=Control event
(n= MIDI channel number)
ccH= Mode message number
vvH= Mode message value
• All sound off
[BnH] [78H] [00H]
n= MIDI channel number
• Reset all controllers
[BnH] [79H] [00H]
n= MIDI channel number
• Local Control ON/OFF
[BnH] [7AH] [vvH]
n= MIDI channel number
vvH= 00H: Off
7FH: On
• All notes OFF
[BnH] [7BH] [00H]
n= MIDI channel number
• OMNI OFF/All notes OFF
[BnH] [7CH] [00H]
n= MIDI channel number