- Effects basics
- Using the Effects Rack
- Effect categories
- Amplitude and Compression effects
- Delay and echo effects
- Filter and EQ effects
- Modulation effects
- Noise reduction/restoration
- Reverb effects
- Special effects
- Stereo imagery effects
- Time and Pitch effects
- Third-party effects (VST and AU)
- Using the Effects menu
- Presets and favorites
- Review questions
- Review answers
This chapter is from the book
This chapter is from the book
This chapter is from the book
Stereo imagery effects
Audition includes three effects for altering a stereo image: Center Channel Extractor, Stereo Expander, and Graphic Phase Shifter. The latter is an esoteric tool that you will likely not need to use when you’re doing typical audio projects, so concentrate on the Center Channel Extractor and Stereo Expander for now.
Center Channel Extractor
With stereo signals, some sounds are traditionally mixed to center, particularly the vocals, bass, and kick drum. Reversing the phase of one channel cancels out any material panned to center while leaving any signals panned left and right alone. This is commonly used for karaoke to remove the vocals. By filtering the channel that’s out of phase to emphasize voice frequencies, bass and kick aren’t affected that much.
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The Center Channel Extractor is a sophisticated implementation of this principle that allows for boosting or cutting the center channel and includes precise filtering to help apply the effect where it’s wanted.
Stereo Expander
The Stereo Expander is a more sophisticated version of the Widener in the Mastering effect suite. The Stereo Expander has the same goal: expand the stereo image outward to make the difference between the left and right channels more obvious and dramatic. Unlike with the Widener, however, you can also shift the center channel left or right with the Stereo Expander. This lets you weight the stereo image more toward the left or right.
