Specifications

DR. REX LOOP PLAYER
193
Velocity Control
Velocity is usually used to control various parameters according to how hard or
soft you play notes on your keyboard. A REX file does not contain velocity values
on its own. And when you create sequencer track data by applying the “To
Track” function, all velocities are set to a default value of “64”. As velocity infor-
mation is meant to reflect variation, having them all set to the same value is not
meaningful if you wish to velocity control Dr.Rex parameters.
There are basically two ways you can apply “meaningful” velocity values to REX
files:
• After creating track data, you can edit velocity values in the Velocity Lane in
the sequencer.
• You can play slices in real time on your keyboard. The resulting data will
have velocity values reflecting how the notes were struck when you played.
When velocity values have been adjusted, you can control how much the various
parameters will be affected by velocity. The velocity sensitivity amount can be
set to either positive or negative values, with the center position representing no
velocity control.
The following parameters can be velocity controlled:
Pitch Bend and Modulation Wheels
The Pitch Bend wheel is used for “bending” the pitch up or down. The Modula-
tion wheel can be used to apply various modulation while you are playing the
loop. Virtually all MIDI keyboards have Pitch Bend and Modulation controls.
Dr.Rex also has two functional wheels that could be used to apply real time
modulation and pitch bend should you not have these controllers on your key-
board, or if you aren’t using a keyboard at all. The wheels mirror the movements
of the corresponding MIDI keyboard controllers.
Pitch Bend Range
The Range parameter sets the amount of pitch bend when the wheel is turned
fully up or down. The maximum range is “24” (=up/down 2 Octaves).
Modulation Wheel
The Modulation wheel can be set to simultaneously control a number of param-
eters. You can set positive or negative values, just like in the Velocity Control
section. The following parameters can be affected by the modulation wheel:
| Parameter | Description
Amp This let’s you velocity control the overall volume of the file. If a
positive value is set, the volume will increase with higher veloc-
ity values.
F. Env This sets velocity control for the Filter Envelope Amount param-
eter. A positive value will increase the envelope amount with
higher velocity values. Negative values invert this relationship.
F. Decay This sets velocity control for the Filter Envelope Decay parame-
ter. A positive value will increase the Decay time with higher ve-
locity values. Negative values invert this relationship.
| Parameter | Description
F. Freq This sets modulation wheel control of the filter frequency pa-
rameter. A positive value will raise the frequency if the wheel is
pushed forward. Negative values invert this relationship.
F. Res This sets modulation wheel control of the filter resonance pa-
rameter. A positive value will increase the resonance if the
wheel is pushed forward. Negative values invert this relation-
ship.
F. Decay This sets modulation wheel control for the Filter Envelope De-
cay parameter. A positive value will increase the decay if the
wheel is pushed forward. Negative values invert this relation-
ship.