7
Table Of Contents
- Logic Pro 7
- Plug-In Reference
- Contents
- Introducing Logic’s Plug-ins
- Basics
- Instruments and Effects
- Equalizer
- Dynamic
- Distortion
- Filter
- Delay
- Modulation
- Reverb
- Convolution Reverb: SpaceDesigner
- Special
- Helper
- Vocoder—Basics
- The EVOC20PS
- Vocoder History
- Synthesizer Basics
- EFM 1
- ES M
- ES P
- ES E
- ES1
- ES2
- Concept and Function
- The ES2 Parameters
- Tutorials
- Sound Workshop: Logic ES2
- Tutorial Setting: Analog Saw Init
- Tutorial Setting: Analog Saw 3Osc
- Tutorial Setting: Analog Unison
- Tutorial Setting: Analog Bass clean
- Tutorial Setting: Analog Bass distorted
- Tutorial Setting: FM Start
- Tutorial Setting: FM Envelope
- Tutorial Setting: FM Drive
- Tutorial Setting: FM DigiWave
- Tutorial Setting: FM Wavetable
- Tutorial Setting: FM Megafat
- Tutorial Setting: FM Out of Tune and FM Tuned
- Tutorial Settings: PWM Start, PWM Slow, PWM Fast, and PWMScaled
- Tutorial Settings: PWM 2 Osc and PWM Soft Strings
- Tutorial Setting: Ringmod Start
- Tutorial Setting: Sync Start
- Tutorial Setting: Vector Start and Vector Envelope
- Tutorial Settings: Vector Envelope and Vector XY
- Tutorial Settings: Vector Loop
- Tutorial Setting: Vector Kick
- Tutorial Settings: Vector Perc Synth and Vector Punch Bass
- Templates for Logic’s ES2
- Sound Workshop: Logic ES2
- Ultrabeat
- Sculpture
- The Synthesis Core of Sculpture
- Sculpture’s Parameters
- Global Parameters
- String and Object Parameters
- Processing
- Post Processing
- Modulation Generators
- The Control Envelopes
- Morph
- MIDI Controller Assignments
- Programming: Quick Start Guide
- Programming: In Depth
- KlopfGeist
- EVB3
- EVD6
- The EVD6—Concept and Functions
- Parameters of the EVD6
- Controlling the EVD6 via MIDI
- A Brief History of the Clavinet
- EVP88
- EXS24 mkII
- Using Instruments
- File Organization
- Sample File Import
- EXS24 Key Commands
- A Brief History of Sampling
- MIDI Controller List
- GarageBand Instruments
- External Instrument
- Glossary
- Index
44 Chapter 4 Dynamic
Let’s back up a bit for a brief explanation: Noise gates often begin chattering when the
level of a signal fluctuates slightly, but very rapidly, during the attack or release phase.
Instead of clearly exceeding or falling short of the Threshold value, the signal level
hovers around the Threshold. The Noise Gate then rapidly switches on and off to
compensate, producing the undesirable chattering effect. If you were able to tell the
Noise Gate to open at the determined Threshold level and remain open until the level
drops below another, lower, predefined Threshold level, you’d be able to avoid
chatter—as long as the sonic window formed by these two Threshold values is large
enough to contain the fluctuating level of the incoming signal.
This is exactly what the Hysteresis feature enables you to do—the value determined by
the Hysteresis slider is actually the difference between the Threshold values that open
and close the gate. This value is always negative. Generally, −6 dB is a good place to
start.
If you’re dealing with audio material featuring extremely sensitive transients, or attack
phases that are critical to the overall sound, you may find it beneficial to have the Noise
Gate open up a tad before the useful signal fades in. This is what the Lookahead slider
is designed for. The program analyzes the signal level ahead of time, and anticipates
the point at which it can open the gate before the signal actually reaches the Threshold
value. When you choose to use this feature, please make sure you set the Attack, Hold
or Hysteresis controls to appropriate values.
When you’re working with noise gates, you’ll run across scenarios where the useful
signal and the noise signal have levels that are near enough to be perceived as
identical. A typical example is the crosstalk of a hi-hat—its signal tends to bleed into
the snare drum track when you’re recording a drum kit. If you’re using a noise gate to
isolate the snare, you’ll find that the hi-hat will also open the gate in many cases. To
avoid this effect, the Noise Gate offers Side Chain filters.
When you press and hold the Monitor button, you can audition the Side Chain signal.
You can then set the filters to only allow frequencies that contain a particularly loud,
useful signal to pass. For this example, we’ll use the Noise Gate’s High Cut filter—that
only allows the bottom end and mids of the snare to pass, and cuts the higher
frequencies of the hi-hat. When you switch Side Chain Monitoring off, it will be much
easier to set a suitable Threshold level. This will be a value that is only exceeded by the
level of the louder useful signal—the frequencies that make up the snare’s
fundamental tone, in our example. Put simply, the Noise Gate only allows the sound of
the snare to pass. Should the need arise, you can follow much the same procedure to
isolate a kick or snare drum within an entire mixdown.