import type { FormatConfig } from "./utils/BaseConnection.js";
/** Default microphone audio chunk duration sent to the agent (WebSocket path). */
export declare const DEFAULT_INPUT_CHUNK_DURATION_MS = 25;
export type InputDeviceConfig = {
    inputDeviceId?: string;
    preferHeadphonesForIosDevices?: boolean;
};
export type InputConfig = InputDeviceConfig & {
    onError?(message: string, context?: unknown): void;
    /**
     * Duration of each microphone audio chunk sent to the agent, in milliseconds.
     * Only applies to the WebSocket input path (AudioWorklet). Default: 25.
     */
    inputChunkDurationMs?: number;
};
export type InputMessageEvent = MessageEvent<[Uint8Array, number]>;
export type InputListener = (event: InputMessageEvent) => void;
export type InputEventTarget = {
    addListener(listener: InputListener): void;
    removeListener(listener: InputListener): void;
};
export interface InputController {
    close(): Promise<void>;
    setDevice(config?: Partial<FormatConfig> & InputDeviceConfig): Promise<void>;
    setMuted(isMuted: boolean): Promise<void>;
    isMuted(): boolean;
    /**
     * @deprecated AnalyserNode is a web-only API and will not work on all
     * platforms. Use {@link getVolume} for a scalar audio level (0-1) or
     * {@link getByteFrequencyData} for frequency band data instead.
     */
    getAnalyser(): AnalyserNode | undefined;
    /** Returns current audio level as a scalar 0–1. */
    getVolume(): number;
    /**
     * Writes byte frequency data (0-255) into the provided buffer, focused on
     * the human voice range (100-8000 Hz). The buffer length determines the
     * number of frequency bands returned.
     */
    getByteFrequencyData(buffer: Uint8Array<ArrayBuffer>): void;
}
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