The 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. The Grooveshifter can make this straightforward solo swing.

The reference tempo is the project tempo. The Grooveshifter automatically follows all changes to the project tempo.

Note: The Grooveshifter relies on perfect matching of the project tempo with the tempo of the treated recording. Any tempo variations deliver less precise results.

Figure. Grooveshifter window.
Grooveshifter Source Material Parameters
  • Beat and Tonal buttons: Switch between two algorithms, each optimized for different types of audio material.
    • Beat algorithm: Optimized for percussive input material. The Grain Size slider has no effect when Beat is chosen.
    • Tonal algorithm: Optimized for tonal input material. Because this algorithm is based on granular synthesis, it offers an additional Grain Size slider.
  • Grain Size slider and field: Sets the size of the grains—technically-speaking, this determines the analysis precision. The (default) Auto setting automatically derives a suitable grain size value from the incoming signal.
Grooveshifter Swing Parameters
  • Grid buttons: Determine the beat division used as a timing reference by the algorithm when analyzing the audio material.
    • Choose 1/8 if the audio material contains primarily eighth notes, and choose 1/16 if it consists mostly of sixteenth notes.

  • Swing slider and field: Determines the amount that even beats are delayed. A value of 50% means no swing, which is typical for most pop and rock music styles. The higher the value, the stronger the swing effect.
  • Accent slider and field: Raises or lowers the level of even beats, accentuating them. Such accents are typical of a variety of rhythmic styles, such as swing or reggae.