Doepfer R2M Midi-Ribbon-Controller - Manual (Page 22)

Page 22 R2M User's Guide V1.11
Fig. 7
Fig. 7 shows an example with 3 octaves (4-2 Octaves = 3), semitone quantization (4-
1 Quantization = 12 tone) and the first Midi note 24 (3-2 Note =24). This is a "C" one
octave below the lowest "C" of a standard 5 octave Midi keyboard. If another
quantization is used (e.g. major chord) R2M would generate only tone from a major
"C" chord in this example. The enlarged second octave shows the generated Midi
notes in detail (C/36 ... H/47).
There are two possibilities to select another key:
• Static: Changing the value of the parameter 3-2 Note leads to another key
• Dynamic: Using an incoming Midi note message
For the dynamic version of the key change the note number of an incoming Midi note
message is added to internal parameter 3-2 Note. The incoming note numbers have
to be standardized to a reference note (e.g. 36 = lowest "C" of a standard 5 octave
Midi keyboard). For this the parameter 4-1 Transpose Offset is available. The value
assigned to this parameter is subtracted from the incoming note number and the
difference is used to control the key of the quantization dynamically. In addition the
Midi channels of R2M and the controlling keyboard have to match. For the R2M this
parameter is 3-1 Midi Channel.
Example:
• 4-1 Transpose Offset = 36
• 3-2 Note = 36
• 3-1 Channel same as for the external Midi keyboard
This is the recommended setting for these parameters. The leftmost note number of
the R2M is 36 provided that no transpose from an external Midi keyboard is
activated. This corresponds to a quantization with "C" key. As soon as a note is
played on the keyboard R2M transposes the quantization table in accordance to the
received note number. As the transpose offset is 36 an incoming Midi note number of
36 will have no effect. 37 will lead to the C# quantization table , 38 to D, 39 to D# and
so on.
To turn the transpose feature off the parameter 4-1 Transpose Offset has to be set to
00. In this case no transposition with an external keyboard is possible even if the Midi
channels match. Incoming note messages are added (i.e. merged) to the note
messages generated by the R2M.
1 2 3 4 5 6 7 8 9 10 11 12
C
C# D D# E F F# G G# A b H
36 37 38 39 40 41 42 43 44 45 46 47
position sensor
24