( Auto-ducking )

Ducking that stays correct after you cut

The music drops under the voice and rises back in the gaps, automatically. And because the duck follows your actual voice clips — not a drawn curve — trimming a minute of filler re-balances the music by itself. You never redraw automation around an edit.

The part other tools leave to you

In an editor where music is just an imported track, every edit to the speech means going back and redrawing the volume automation around it. Ten edits, ten redraws — or a mix where the music swells in the middle of a sentence that used to be a pause.

Cast’s duck is computed from where your voice clips actually are, so it is never stale. How far the music drops is a dB setting on the music lane; switch it off entirely if you want the bed flat.

  • Follows clips, not curves
  • Depth in dB, on the lane
  • Works with uploaded music too
  • Off switch included

FAQ

01Why does the music get quieter when someone talks?

That is auto-ducking. The music drops under the voice and comes back in the gaps, automatically — and because the duck follows your actual voice clips, it stays correct after you cut. Trim a minute of filler and the music re-balances itself. You never draw a volume envelope by hand. You can set how far it drops, or switch it off.

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02The music is still too loud — what do I fix?

Lower the music lane's level and deepen the ducking. Do not reach for the master: ducking controls how far the music drops while someone is speaking, while the master sets the level of the whole episode, so lowering it just makes everything quieter together.

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03What is ducking, exactly?

Ducking is automatically lowering the music whenever someone speaks, and letting it come back up when they stop. It is what makes a music bed sit under a voice instead of fighting it — and doing it by hand means drawing a volume curve around every sentence.

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