EFM1 in Logic Pro for iPad
The 16-voice EFM1 is a simple but powerful frequency modulation synthesizer. It can produce the rich bell and digital sounds that frequency modulation (FM) synthesis has become synonymous with.
If you’re new to synthesizers, see Intro to synthesizers, which will introduce you to the terminology and give you an overview of different synthesis methods and how they work.
To add EFM1 to your project, choose it from the Instrument > Synthesizer submenu in an Instrument channel strip or the Plug-ins area. See Intro to plug-ins.
EFM1 is divided into several areas.
Modulator and Carrier parameters: The FM engine consists of the modulator and carrier parameters and the Carrier FM Intensity knob. These are the key controls for setting the basic tone of EFM1. See EFM1 Modulator and carrier.
Modulation parameters: The LFO and modulation envelope are used to animate the sound. See EFM1 modulation parameters.
Output parameters: The Output section includes the Volume Envelope, Main Level, and other parameters that you can use to control the EFM1 level. See EFM1 output parameters.
Global parameters: These parameters set the overall tuning of EFM1, set the Glide (portamento) time, limit the number of voices, and thicken the sound with Unison. You can also create random patch variations with a button tap. See EFM1 global parameters.
MIDI Controller parameters: These parameters allow you to assign MIDI controllers for FM intensity and vibrato. See EFM1 MIDI controller assignments.
User Guide conventions
Logic Pro for iPad plug-ins have two primary views:
Tile view, which shows a few key parameters in the Plug-ins area
Details view, where you can access all plug-in parameters
Throughout the guide, parameters available in Tile view are indicated by .
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