import type { MutableRefObject } from "react";
import type { AudioPipeline } from "../../types.js";
import type { MicrophoneBufferType } from "../types/Microphone.js";
export interface PushToTalkGate {
    /** Whether the key or button is currently held. */
    isPttActive: MutableRefObject<boolean>;
    /** Called by the embedder from whatever its trigger is. */
    setActive(active: boolean): void;
}
export declare function usePushToTalkGate(microphoneBuffer: MicrophoneBufferType, audioContext: AudioContext | undefined, ownPipeline?: AudioPipeline | null): PushToTalkGate;