9
Table Of Contents
- Logic Express 9 Effects
- Contents
- An Introduction to the Logic Express Effects
- Amps and Pedals
- Amp Designer
- Choosing an Amp Designer Model
- Tweed Combos
- Classic American Combos
- British Stacks
- British Combos
- British Alternatives
- Metal Stacks
- Additional Combos
- Building a Customized Amp Designer Combo
- Choosing an Amp Designer Amplifier
- Choosing an Amp Designer Cabinet
- Amp Designer Cabinet Reference Table
- Using Amp Designer’s Equalizer
- Amp Designer Equalizer Type Reference Table
- Using Amp Designer’s Gain, Presence, and Master Controls
- Getting to Know Amp Designer’s Effects Parameters
- Using Amp Designer’s Reverb Effect
- Amp Designer Reverb Type Reference Table
- Using Amp Designer’s Tremolo and Vibrato Effects
- Setting Amp Designer Microphone Parameters
- Setting Amp Designer’s Output Level
- Bass Amp
- Guitar Amp Pro
- Building Your Guitar Amp Pro Model
- Choosing a Guitar Amp Pro Amplifier
- Choosing a Guitar Amp Pro Speaker Cabinet
- Choosing a Guitar Amp Pro Equalizer
- Using Guitar Amp Pro’s Gain, Tone, Presence, and Master Controls
- Getting to Know Guitar Amp Pro’s Effects Section
- Using Guitar Amp Pro’s Tremolo and Vibrato Effects
- Using Guitar Amp Pro’s Reverb Effect
- Setting Guitar Amp Pro Microphone Parameters
- Setting the Guitar Amp Pro Output Level
- Pedalboard
- Amp Designer
- Delay Effects
- Distortion Effects
- Dynamics Processors
- Equalizers
- Filter Effects
- AutoFilter
- EVOC 20 Filterbank
- EVOC 20 TrackOscillator
- What Is a Vocoder?
- How Does a Vocoder Work?
- Getting to Know the EVOC 20 TrackOscillator Interface
- EVOC 20 TrackOscillator Analysis In Parameters
- Using EVOC 20 TrackOscillator Analysis In Parameters
- EVOC 20 TrackOscillator U/V Detection Parameters
- EVOC 20 TrackOscillator Synthesis In Parameters
- Basic Tracking Oscillator Parameters
- Tracking Oscillator Pitch Correction Parameters
- Quantizing the Pitch of the Tracking Oscillator
- EVOC 20 TrackOscillator Formant Filter Parameters
- Using Formant Stretch and Formant Shift
- EVOC 20 TrackOscillator Modulation Parameters
- EVOC 20 TrackOscillator Output Parameters
- Fuzz-Wah
- Spectral Gate
- Imaging Processors
- Metering Tools
- Modulation Effects
- Pitch Effects
- Reverb Effects
- Specialized Effects and Utilities
- Utilities and Tools
EVOC 20 Filterbank
The EVOC 20 Filterbank consists of two formant filter banks. The input signal passes
through the two filter banks in parallel. Each bank features level faders for up to 20
frequency bands, allowing independent level control of each band. Setting a level fader
to its minimum value completely suppresses the formants in that band. You can control
the position of the filter bands with the Formant Shift parameter. You can also crossfade
between the two filter banks.
A Short Primer on Formants
A formant is a peak in the frequency spectrum of a sound. When the term is used in
relation to human voices, formants are the key component that enables humans to
distinguish between different vowel sounds—based purely on the frequency of these
sounds. Formants in human speech and singing are produced by the vocal tract, with
most vowel sounds containing four or more formants.
Getting to Know the EVOC 20 Filterbank Interface
The EVOC 20 Filterbank interface is divided into three main sections: the Formant Filter
parameters section in the center of the window, the Modulation parameters section at
the bottom center, and the Output parameters section along the right side.
Formant Filter parameters
Output parameters
Modulation parameters
• Formant Filter parameters: Control the frequency bands in the two filter banks: Filter
Bank A (top, blue) and Filter Bank B (bottom, green). See EVOC 20 Filterbank Formant
Filter Parameters.
• Modulation parameters: Control how Formant Filter parameters are modulated. See
EVOC 20 Filterbank Modulation Parameters.
• Output parameters: Control the overall output level and panning of the EVOC 20
Filterbank. See EVOC 20 Filterbank Output Parameters.
103Chapter 6 Filter Effects