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Chapter 14 Specialized eects and utilities 262
Grooveshifter
Grooveshifter allows you to rhythmically vary audio recordings, imparting a swing feel to the
input signal. Imagine a guitar solo played in straight eighth or sixteenth notes. Grooveshifter can
make this straightforward solo swing.
Grooveshifter automatically follows all changes to the project tempo, which it uses as the
reference tempo.
Note: Grooveshifter relies on perfect matching of the project tempo with the tempo of the
treated recording. Any tempo variations deliver less precise results.
Grooveshifter source material parameters
•
Beat and Tonal buttons: Click to select the type of source, or input, material you are using.
•
Beat button: The beat algorithm is optimized for percussive input material. The Grain Size
slider is disabled when you select Beat.
•
Tonal button: The tonal algorithm is optimized for tonal input material. Because this
algorithm is based on granular synthesis, the Grain Size slider is available when you
select Tonal.
•
Grain Size slider and eld: Drag to set the size of the grains—from 1 ms to 20 ms. Technically,
this determines the analysis precision. The default Auto setting at the left end of the slider
automatically assigns a suitable grain size value based on the incoming signal.
Grooveshifter swing parameters
•
Grid buttons: Click to set the beat division used as a timing reference when analyzing
audio material.
•
1/8 button: Select if the audio material contains primarily eighth notes.
•
1/16 button: Select if the audio material consists mostly of sixteenth notes.
•
Swing slider and eld: Drag to set the amount that even beats are delayed—from 50% to 75%.
A value of 50% means there is no swing, which is typical for most pop and rock music styles.
The higher the value, the stronger the swing eect.
•
Accent slider and eld: Drag to set the level of even beats—from –12 dB to +12 dB—
suppressing or accentuating them. Such accents are typical of a variety of rhythmic styles,
such as swing or reggae.