import type { FormatConfig } from "./utils/BaseConnection.js";
export type OutputDeviceConfig = {
    outputDeviceId?: string;
};
export type OutputConfig = OutputDeviceConfig;
export type OutputAudioEvent = {
    audio_base_64: string;
};
export type OutputListener = (event: OutputAudioEvent) => void;
export type OutputEventTarget = {
    addListener(listener: OutputListener): void;
    removeListener(listener: OutputListener): void;
};
export type PlaybackStateEvent = MessageEvent<{
    type: "process";
    finished: boolean;
}>;
export type PlaybackListener = (event: PlaybackStateEvent) => void;
export type PlaybackEventTarget = {
    addListener(listener: PlaybackListener): void;
    removeListener(listener: PlaybackListener): void;
};
export interface OutputController {
    close(): Promise<void>;
    setDevice(config?: Partial<FormatConfig> & OutputDeviceConfig): Promise<void>;
    setVolume(volume: number): void;
    interrupt(resetDuration?: number): void;
    /**
     * @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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