10.6

504Logic Pro Instruments
Learn a MIDI controller assignment in Sculpture
1. In Logic Pro, open a control pop-up menu, and choose the Learn item.
2. Move the controller on your MIDI keyboard or MIDI controller.
Note: If no suitable MIDI message is received within 20 seconds, the selected control
reverts to the previous value/assignment.
Logic Pro Sculpture extended parameters
Sculpture provides additional parameters that can be accessed by clicking the disclosure
triangle at the lower left of the interface.
Extended parameters
• MIDI Mono Mode pop-up menu: Choose Off, On (with common base channel 1), or On
(with common base channel 16).
In either mode, each voice receives on a different MIDI channel. Per-voice channels
support pitchbend, aftertouch, modwheel, Vibrato Depth Ctrl, and Ctrl A and Ctrl B
assignment messages. See Assign Logic Pro Sculpture MIDI controllers. Controllers and
MIDI messages sent on the base channel affect all voices.
• Mono Mode Pitch Range slider: Set a value from 0 to 96.
The chosen pitch bend range affects individual note pitch bend messages received on
all but the common base channel. The default is 48 semitones, which is compatible
with the GarageBand for iOS keyboard in pitch mode. When using a MIDI guitar, 24
semitones is the preferable setting because most guitar to MIDI converters use this
range by default.
• Render Mode pop-up menu: Choose Basic, Extended, or High Definition mode.
Sculpture’s string model can roughly be seen as a chain of springs and masses. The
maximum number of elements (masses) is set with the Resolution slider. The Resolution
slider interacts with the pitch, stiffness and pitch bend range settings to automatically
set the number of overtones that are actually used. This Sculpture string model affords
advantages over the more common waveguide models, especially when it comes to
interactions with the string with multiple or larger objects. An inherent property of this
flexible string model is that higher overtones are slightly below integer multiples of the
fundamental, leading to increasingly inharmonic higher overtones for a string without
any stiffness.
Each Render Mode option changes the number of available elements and/or processing.
• Basic: Choose to set a maximum of 100 elements, with some internal headroom for
extreme key scaling. Suitable for many sound types, and has a lower processing
load than other render modes. There is a direct correlation between the number
of vibration modes and elements, resulting in a maximum of 99 overtones in the
spectrum of a single voice. For example, a 100 Hz bass note (with no string stiffness)
has a highest overtone of around 10 kHz, making the more audibly inharmonic upper
third of the harmonic series fall into the audible range.