In Reaper, Dynamic Split is a powerful tool used to automatically split audio or MIDI items based on certain dynamic criteria—like silence, transients, or volume thresholds. It's commonly used for tasks such as:
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Separating drum hits
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Isolating words or phrases in a vocal recording
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Cleaning up noise or silence
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Preparing audio for further editing or quantization
🛠️ Where to Find It:
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Select the audio item(s).
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Go to
Item>Item processing> Dynamic split items
Or use shortcut:D(if assigned).
⚙️ Main Features of Dynamic Split:
| Option | What It Does |
|---|---|
| Split points | Detects where to split the audio (based on transients, gate (volume), or both). |
| Sensitivity/Thresholds | Adjusts how aggressive the split detection is. |
| Min slice length | Prevents very short slices from being created (avoids over-splitting). |
| Padding | Adds milliseconds before or after the split point. |
| Actions | You can split, delete silence, or create stretch markers. |
| Preview | Shows visual guides where splits will occur—helps avoid mistakes. |
🧠 Typical Use Example:
Imagine you have a recording of a snare drum loop and you want to extract each hit to quantize them or rearrange:
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Select the item.
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Open Dynamic Split.
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Choose "Transients" and adjust threshold/sensitivity until every hit is marked.
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Click Split or Split and Remove Silence.
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Done—each snare hit is now its own item!
🧩 Bonus: Combine with Other Tools
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Quantize Items: After splitting, you can quantize items to the grid.
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Batch FX Processing: Apply effects only to certain parts.
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Time Stretching: Insert stretch markers instead of splitting.
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