Documentation Index
Fetch the complete documentation index at: /llms.txt
Use this file to discover all available pages before exploring further.
Gridshift is in early development. Features and documentation may change.
Change the speed and pitch of audio independently, with four modes — Slice for drums, Complex for tonal material, Repitch for varispeed, and Off.
⌘ and drag the right edge of an audio clip to stretch it. The audio is compressed or expanded to fit the new duration. The stretch rate is calculated automatically.
You can also stretch clips from the keyboard: ⌘⌃⇧→ / ⌘⌃⇧↓ stretches slower (longer), ⌘⌃⇧← / ⌘⌃⇧↑ stretches faster (shorter), and adding ⌥ to any of these makes a fine adjustment (1/4 of the normal step).
Time stretch settings are also available in the Inspector for sample tracks.
| Mode | Best for | How it works |
|---|---|---|
| Off | No processing needed | Audio plays at original speed and pitch |
| Slice | Drums, percussion, loops | Repositions audio between transient markers — preserves attack and punch |
| Complex | Vocals, melodies, pads | Spectral time/pitch processing (Signalsmith Stretch) with independent rate, pitch, and formant control |
| Repitch | Quick speed changes | Varispeed resampling — changing speed also changes pitch, like a tape machine |
| Parameter | Range | Description |
|---|---|---|
| Rate | 0.25x – 4.0x | Playback speed |
| Decay | 0.0 – 1.0 | Envelope decay per slice (0 = maximum decay, 1 = no decay) |
| Parameter | Range | Description |
|---|---|---|
| Rate | 0.25x – 4.0x | Playback speed |
| Pitch | -24 to +24 semitones | Pitch shift independent of speed |
| Formant | -24 to +24 semitones | Formant shift for creative voice and timbre manipulation |
| Formant Preservation | On / Off | Preserve natural formant structure during pitch shift |
| Tonality Limit | On / Off | Constrain pitch shifting to preserve tonal quality |
| Action | Shortcut |
|---|---|
| Stretch slower (longer) | ⌘⌃⇧→ / ⌘⌃⇧↓ |
| Stretch faster (shorter) | ⌘⌃⇧← / ⌘⌃⇧↑ |
| Fine adjustment | add ⌥ to any above |
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