import { VoiceSettings } from '../types/audio.js';
export interface ElevenLabsResponse {
    audioBuffer: ArrayBuffer;
    audioUrl?: string;
    duration?: number;
}
export declare class ElevenLabsClient {
    private apiKey;
    private baseUrl;
    private voiceMap;
    constructor(apiKey?: string);
    synthesizeText(text: string, voice?: string, settings?: Partial<VoiceSettings>): Promise<ElevenLabsResponse>;
    synthesizeWithStreaming(text: string, voice?: string, settings?: Partial<VoiceSettings>): Promise<ElevenLabsResponse>;
    private estimateAudioDuration;
    getVoices(): Promise<Array<{
        id: string;
        name: string;
    }>>;
    isValidVoice(voice: string): boolean;
    getAvailableVoices(): string[];
}
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