Waldorf KB 37 User Manual - page 10
7
CV/GATE INTERFACE
7
CV/Gate Interface
The CV/Gate interface features various output jacks on the left side of the
KB37. It also allows the KB37 to be configured in various ways via setup
functions and the dedicated buttons next to the jacks.
The voltages and trigger signals generated on the jacks are based on MIDI
events either generated when playing the keyboard or received by the MIDI or
USB jacks at the back panel. The data from both DIN MIDI In and USB MIDI
are merged together and not handled separately.
• Use the MIDI RX parameter to set the receive channel
• Use the Local Control parameter to enable/disable the connection be-
tween the CV interface and the keyboard controls
7.1
Gate
The Gate output delivers a High signal while notes are being played. It is
usually used to trigger envelope modules. Depending on the position of the
Gate Trigger switch, the output behaves differently:
Setting
Description
Single
The output is set High when the first note is started and
goes Low again when the last note is released.
Note On
The output is set High on each Note On event.
All
The output is set High on each note event (on and off), as
long as at least one note is played.
Note: The settings Note On and All Notes are retrigger settings. To achieve the
desired functionality, the output signal has to go Low for a short amount of time
before it rises again. Otherwise it would be impossible for a module to detect a
trigger condition.
7.2
Pitch
The Pitch output delivers a signal according to the calculated note pitch and
has a 1V/octave scaling. The maximum output level is +7V. When calculating
the note pitch, the following is taken into account:
• The note number, which is also dependent on the Octave setting
• The current pitch bend value, dependent on the configured Pitch Bend
Range parameter
• Portamento via the Glide knob setting
• The Note Priority switch setting
The Note Priority switch determines which note is taken for the pitch calculation:
Setting
Description
Lowest
The lowest note played
Last
The last note played
Highest
The highest note played
7.3
Clock
The Clock output delivers short +5V trigger pulses according to MIDI Timing
Clock messages received either externally or generated by the internal clock
generator. The number of clock pulses generated is dependent on the setting
of the Clock Division parameter that can be configured via the setup functions.
With the default clock divider of 6, a pulse is generated on each 1/16th note.
Note: when the unit is powered on, the clock source is always set to master
(i.e. the internal clock generator). To use external MIDI Sync, switch the clock
source setting to slave via the corresponding setup function.
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