Doepfer R2M Midi-Ribbon-Controller - Manual (Page 26)

Page 26 R2M User's Guide V1.11
In any case it is the best solution is to adjust both the pitch scale of the R2M and the
Midi receiver until a satisfactory cooperation between both devices is reached. As
soon as the optimal setting is found it is recommended to stored the settings as a
new preset (see page 20).
Attention has to be payed to the transition range between two note areas (labelled
with question marks in fig. 9), i.e. if the finger remains in a position that is exactly
between two Midi notes. In the following this position is called the retrigger point. At
the retrigger point the R2M does not "know" which of both Midi notes should be
generated – together with the corresponding pitch bend correction – and the R2M
may toggle between the two Midi notes. In this situation the parameter 4-3 Retrigger
time takes effect again. In this connection it determines the time required by the R2M
to recognize a note number change. If this time is too short it may happen that
several note on/off/on... messages appear at the trigger point (?) as the finger glides
slowly over the manual. This behaviour can be improved resp. eliminated by
increasing the retrigger time. On the other hand a too long retrigger time worsens the
response time of the manual and will be noticeable while fast playing. Consequently
one has to find a compromise between debouncing at the retrigger point and the
response time.
Generation of the control voltages CV1/CV2 and Gate
In most cases the control voltage output CV1 and the gate output correspond to the
Midi messages sent by the R2M. But this applies not in every case. For example the
Midi note messages can be transposed to each value in the complete Midi note
range 0...127 (i.e. more than 10 octaves). But the CV output range is only 0...+5V, i.e.
a 5 octave range only.
These parameters have an influence to the generation of CV1, CV2 and gate:
CV1 CV2 Gate
1-2 Direction
2-1 Midi Event
4-1 Quantization
4-2 Number Octave
4-3 Retrigger Time
5-x Arpeggio (all
parameters) 1-3 Direction
2-2 Midi Event 2-1 Midi Event
4-1 Quantization
4-2 Number Octave
4-3 Retrigger Time
5-x Arpeggio (all
parameters)
All other parameters have no influence – especially the Midi specific parameters Midi
channel, note number and control change number. Even the parameters mentioned
in the table are not effective in every case to CV1 and gate. In the following the
coherence between the parameters in the list and the influence to CV1/gate
generation is explained.