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ES2 basic oscillator waveforms in Logic Pro for Mac

All ES2 oscillators output a number of standard waveforms—sine, pulse, rectangular, sawtooth, and triangular waves—or, alternately, any of 100 Digiwaves (see Use ES2 Digiwaves). The table outlines the basic waveforms.

Waveform

Basic tone

Comments

Pulse/Rectangular

Nasal sounding

Great for reed instruments, synth blips, and basses

Square

Hollow and woody sounding

Useful for basses, clarinets, and oboes. The pulse width of (oscillator 2 and 3) square waveforms can be smoothly scaled between 50% and the thinnest of pulses.

Sawtooth

Warm and even

Useful for strings, pads, bass, and brass sounds

Triangle

Sweet sounding, softer than sawtooth

Useful for flutes and pad sounds

Sine

A pure tone

The sine wave of oscillator 1 can be frequency modulated by oscillator 2. This kind of modulation forms the basis of FM synthesis (see Use ES2 frequency modulation in Logic Pro for Mac).

Oscillators 2 and 3 also offer the selection of:

  • A rectangular wave, synchronized to oscillator 1

  • A sawtooth wave, synchronized to oscillator 1

  • A ring modulator, which is fed by the output of oscillator 1 and a square wave from oscillator 2

  • Noise for oscillator 3. See Use the ES2 noise generator.

Oscillator synchronization and ring modulation allow for the creation of very complex and flexible harmonic spectra. The principles behind oscillator synchronization are described in Synchronize ES2 oscillators. Ring modulation principles are described in Use ES2 ring modulation.

Download the guides:

Logic Pro User Guide: PDF

Logic Pro Instruments: PDF

Logic Pro Effects: PDF

Control Surfaces Support Guide: PDF

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