8
Table Of Contents
- Logic Express 8 Instruments and Effects
- Contents
- Introduction to the Logic Express Plugins
- Amp Modeling
- Delay
- Distortion
- Dynamics
- EQ
- Filter
- Imaging
- Metering
- Modulation
- Pitch
- Reverb
- Specialized
- Utility
- EVOC 20 PolySynth
- EFM1
- ES E
- ES M
- ES P
- ES1
- ES2
- The ES2 Parameters
- Tutorials
- Sound Workshop
- Sound Design From Scratch, Filter Settings, Digiwaves
- Three Detuned Sawtooth Oscillators and Unison Mode
- Extremely Detuned Monophonic Analog Sounds, Effects
- Clean Bass Settings With One Oscillator Only
- Distorted Analog Basses
- FM Intensity and Frequency
- Controlling FM Intensity by an Envelope and FM Scaling
- FM With Drive and Filter-FM
- FM With Digiwaves
- FM With Wavetables
- Distorted FM in Monophonic Unison
- FM With Unusual Spectra
- Slow and Fast Pulse Width Modulations With Oscillator 2
- Pulse Width Modulation With Two Oscillators, PWM Strings
- Ring Modulation
- Oscillator Synchronization
- First Steps in Vector Synthesis
- Vector Synthesis—XY Pad
- Vector Synthesis Loops
- Bass Drum With Self-Oscillating Filter and Vector Envelope
- Percussive Synthesizers and Basses With Two Filter Decay Phases
- Templates for the ES2
- Sound Workshop
- EXS24 mkII
- Learning About Sampler Instruments
- Loading Sampler Instruments
- Working With Sampler Instrument Settings
- Managing Sampler Instruments
- Searching for Sampler Instruments
- Importing Sampler Instruments
- Parameters Window
- The Instrument Editor
- Setting Sampler Preferences
- Configuring Virtual Memory
- Using the VSL Performance Tool
- External Instrument
- Klopfgeist
- Ultrabeat
- GarageBand Instruments
- Synthesizer Basics
- Glossary
- Index
114 Chapter 9 Modulation
Tremolo
The Tremolo effect modulates the amplitude of a signal, resulting in periodic volume
changes. You’ll recognize this effect from vintage guitar combo amps (where it is
sometimes incorrectly referred to as vibrato). The graphic display shows all parameters,
except Rate.
 Depth slider and field: Determines the modulation amount.
 Rate knob and field: Defines the frequency, and therefore the speed, of the LFO.
 Symmetry and Smoothing knobs and fields: Use these to set the shape of the
modulation.
 Phase knobs and fields (only available in stereo instances): Controls the phase
relationship between the individual channel modulations. At 0°, the extreme values
of the modulation are achieved simultaneously for all channels. 180° or –180° is equal
to the greatest possible distance between the modulation phases of the channels.
 Offset slider and field (extended parameter): Sets the amount that the modulation
(cycle) is shifted to the left or right, resulting in subtle or noticeable tremolo
variations.
Symmetry and Smoothing
If Symmetry is set to 50% and Smoothing to 0%, the modulation has a rectangular
shape. This means that the timing of the full volume signal is equal to that of the low
volume signal, and that switching between both states occurs abruptly. You can define
the loud/quiet time ratio with Symmetry and make it fade gently in or out with
Smoothing.