10.6

Table Of Contents
288Logic Pro Instruments
Create random Logic Pro EFM1 sounds
The Randomize feature generates new sounds by randomly altering a number of key
parameter values.
This feature is ideal for creating subtle variations of a particular sound or for creating
totally new sounds. It is useful when getting started with FMsynthesis.
Randomize parameters
Randomize button: Create a new sound by randomizing multiple parameters.
Randomize field: Determine the amount of randomization—variance from the original
sound.
Create a random sound
In Logic Pro, click the Randomize button.
You can click multiple times. Save your settings as you go if you generate a sound you
want to keep.
Limit the amount of randomization
In Logic Pro, drag in the numeric field to set the amount of randomization—variance
from the original sound.
If you want to only randomly “tweak” the current sound, use values below 10%. Use
higher values to radically change the sound with each click.
Logic Pro EFM1 extended parameters
Click the disclosure triangle at the lower left to open the EFM1 extended parameters.
See Logic Pro EFM1 MIDI controller assignments for information about the controller
assignment extended parameters.
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. Controllers and MIDI
messages sent on the base channel affect all voices.
Mono Mode Pitch Range slider: Set a range from 0 to 96 semitones.
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.
Main Pitch Bend Range slider: Set a range from 0 to 24 semitones.