Program
>>
1 - Bass Drum
7 - hand ClaP/MAracas
2 - Snare Drum
8 - Cow Bell
3 - Low Tom/Low Conga
9 - CYmbal
4 - Mid Tom/Mid Conga
10 - Open Hihat
5 - Hi Tom/Hi Conga
11 - Closed Hihat
6 - Rim Shot/Claves
1) Above is a list of how program numbers are used in MAPPING MODE. No matter how the sounds are assigned,
these program numbers always belong to the same sound.
2) Any program number above 11 will terminate Mapping mode and return you to normal play mode.
3) If you assign more than one sound to the same MIDI note, only the most recent one will sound - the original
sound on that note will then be "unassigned" until it has been given a new assignment.
4) Assignments are stored in non volatile memory.
5) The TR-808 will always transmit the assigned drum notes as follows:- Normal notes - velocity 64 (40 hex).
Accented notes - velocity 127 (7F hex).
6) Receive Mode 1 - (factory default setting). The TR-808 will play the assigned note at the incoming velocity.
7) Receive Mode 0 - The TR-808 will play the assigned note in two ways only received velocity 1 to 79 (1 to 4F hex)
- will play normal volume received velocity 80 to 127 (50 to 7F hex) will play accented sound which is adjustable by
the Accent control on the TR-808 This mode is provided so that patterns/songs sent from the TR-808 to a separate
sequencer and stored, can be played back exactly as if they were in the TR-808.
8) Modes 0/1 can be changed from within a song/sequence by sending a "General purpose controller 1" message.
In hexadecimal 0Bx - 10 - nn
Where B is Controller status (0B0 hex)
Where x is the current MIDI receive channel (0 to F hex)
Where 10 is controller number 16 (10 hex) [general purpose controller 1]
Where nn is more than 64 (40 hex) for mode 1 - (velocity mode)
Where nn is less than 64 (40 hex) for mode 0 - (accent mode)
9) "MIDI CONTINUE" is enabled as a factory default but it can be disabled (see table on previous page) - when
enabled "CONTINUE" is treated as a "START" command.
10) When the TR-808 is receiving clock via MIDI (rear panel switch down) the rear panel din sync socket will also
carry the decoded MIDI clock and stop start control signals - enabling another TR-808 or TB303 to run in sync with
the incoming MIDI.
11) For the TR-808 to run correctly from MIDI sync, you will need to use PRE-SCALE setting number 3 (quarter
notes).
TO SET PRE-SCALE - set pre-scale switch to 3 - set to pattern write 1st part - select pattern you want to change -
press start button - press clear/pre-scale button until change is heard - press stop - reset to pattern play - done.
