Purpose

Gate quiets a signal when it drops below a threshold and opens when wanted sound returns. It weighs voice-like content in its detection, so it is well suited to cleaning up dialogue and vocals between phrases. An optional sidechain can drive the gate from a second source.

TouchDesigner Use

Insert it inline on a voice or noisy source. Wire audio into in and out onward. Set Threshold just above the noise floor, then tune Attack, Hold, and Release so the gate opens cleanly and does not chatter. To gate one source from another, wire a control source into sidechain and turn Usesidechain on.

Inputs And Outputs

• Input 0: in is the signal to gate. It accepts mono or stereo PCM and is required.
• Input 1: sidechain is an optional detection source. It accepts mono or stereo PCM.
• Output 0: out emits the same shape as the main input.

Main Controls

• Threshold: level the signal must cross for the gate to open.
• Voiceratio: how strongly voice-like content is favored when deciding to open.
• Reduction: how much the closed gate attenuates rather than fully silences. Lower values leave a little signal through.
• Attack: how fast the gate opens, in milliseconds.
• Release: how fast it closes, in milliseconds.
• Hold: how long it stays open after the signal falls, in milliseconds.
• Voicelow and Voicehigh: frequency range that detection focuses on.
• Smoothing: smooths the detection so the gate does not flicker.
• Usesidechain: when on, the sidechain input drives detection instead of the main input.

Notes

• Set Threshold above the noise floor but below the quietest wanted sound.
• If the gate chatters, raise Hold and Smoothing. If it cuts word tails, lengthen Release.
• Use a small Reduction instead of a full close when you want the gate to be less obvious.

Parameters

This operator does not expose user parameters in the extracted schema.

Catalog metadata

Roles

• transform
• mixer

Tags

None listed.

Search groups

• audio