export declare function synthesize(text: string, options: WindowsMediaTTSOptions): WindowsMediaTTSSynthesizeResult;
export declare function getVoiceList(): WindowsMediaTTSVoiceInfo[];
export declare function getVoiceInfo(name: string): WindowsMediaTTSVoiceInfo;
export declare function getDefaultVoiceInfo(): WindowsMediaTTSVoiceInfo;
export declare function isAddonAvailable(): boolean;
export interface WindowsMediaTTSSynthesizeResult {
    audioContentType: string;
    audioData: Uint8Array;
    markers: {
        text: string;
        time: number;
    };
    timedMetadataTracks: {
        id: string;
        cues: {
            id: string;
            startTime: number;
            duration: number;
        }[];
    };
}
export interface WindowsMediaTTSVoiceInfo {
    id: string;
    displayName: string;
    description: string;
    language: string;
    gender: 'male' | 'female';
}
export interface WindowsMediaTTSOptions {
    voiceName?: string;
    speakingRate?: number;
    audioPitch?: number;
    enableSsml?: boolean;
    enableTrace?: boolean;
}
export declare const defaultWindowsMediaTTSOptions: WindowsMediaTTSOptions;