Pitch Modes
Re-pitch
This is the mode you’ll use most for harmonic mixing. When you change the tempo of a track, the engine keeps the musical key consistent. It does this by first resampling the audio, temporarily affecting both tempo and pitch, and then correcting the tempo back using time-stretching.
You can also choose presets (such as Drums, Vocals, etc.), which inform the engine about the type of material so it can optimize the processing accordingly.
Beat Slice
This mode is designed for heavily percussive material. The audio is divided into small segments based on the beatgrid, which are then rearranged to match the target tempo. No full-waveform time-stretching is applied, which helps keep drums and rhythm tight and punchy.
On melodic or vocal material, this mode can sound less natural because the segment boundaries may introduce audible artifacts.
Vinyl
This mode simulates the behavior of a physical turntable. Tempo and pitch are directly linked: speeding up a track raises the pitch, slowing it down lowers the pitch. There is no additional processing applied, only pure resampling.
This results in the most natural sound, but you lose independent control over tempo and key.
Presets
Presets such as Drums configure the engine to preserve transients (the attack of percussive sounds) as tightly as possible.
For melodic or vocal material, different processing is applied, such as spectral interpolation and harmonic preservation, but this typically comes at the cost of slightly reduced transient precision.
Formant Correction
When you pitch-shift a track, the spectral envelope (which defines the timbre or tonal character) usually shifts along with it. In vocals, this leads to the well-known “chipmunk effect” when pitching up.
With formant correction enabled, the spectral envelope is adjusted back to its original position after pitch shifting, preserving the natural timbre. This is especially important for vocal material and for larger pitch changes.