- 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
Time and Pitch effects
The Automatic Pitch Correction and Pitch Shifter effects enable you to make precise corrections or adjustments to audio pitch. Automatic Pitch Correction is designed for vocals and corrects the pitch of notes so that they are in tune. Pitch Shifter transposes audio upward or downward in pitch without affecting the tempo.
Automatic Pitch Correction
Pitch correction is intended for vocals whose pitch is slightly out of tune. This effect analyzes the vocal to extract the pitch, calculates how far off a note is from the correct pitch, and then corrects the note by raising or lowering the pitch to compensate.
Be careful when applying this effect; many vocalists deliberately sing some notes a little flat or sharp to add interest or tension to a vocal. Correcting these can remove a vocal’s human quality.
Pitch Shifter
The Pitch Shifter can transpose an audio file up or down in pitch, but unlike some pitch-shifting algorithms, it does so without changing tempo. Note that the greater the amount of transposition, the lower the fidelity.
Some audio signals transpose more elegantly than others. For example, isolated, low-frequency sounds don’t handle transposition particularly well.
