export declare const NOISE_GATE_WORKLET_NAME = "noise-gate-processor";
/**
 * Registers the worklet module on the given context. Safe to call repeatedly.
 * Throws if the module cannot be registered, so callers can fall back.
 */
export declare function ensureNoiseGateWorklet(audioContext: BaseAudioContext): Promise<void>;
/**
 * Creates the gate node. Input 0 is the signal to gate, input 1 is the
 * pre-processing tap used for level detection.
 */
export declare function createNoiseGateNode(audioContext: AudioContext): AudioWorkletNode;