/**
 * Leaper Agent – Text-to-Speech Tool
 * Multi-provider TTS: Edge TTS, ElevenLabs, OpenAI, and more.
 */
import type { ToolDefinition } from './registry.js';
export type TTSProvider = 'edge' | 'openai' | 'elevenlabs' | 'minimax' | 'gemini' | 'auto';
export interface TTSOptions {
    text: string;
    provider?: TTSProvider;
    voice?: string;
    output_path?: string;
    speed?: number;
    format?: 'mp3' | 'wav' | 'ogg' | 'opus';
}
export interface TTSResult {
    success: boolean;
    output_path?: string;
    provider?: string;
    voice?: string;
    duration_ms?: number;
    error?: string;
}
export interface VoiceInfo {
    id: string;
    name: string;
    language: string;
    gender?: 'male' | 'female' | 'neutral';
    provider: string;
}
export declare const DEFAULT_VOICES: Record<TTSProvider, string>;
export declare const OPENAI_VOICES: string[];
export declare const GEMINI_VOICES: string[];
export declare function synthesizeEdgeTTS(text: string, voice: string, outputPath: string): Promise<void>;
export declare function synthesizeOpenAI(text: string, voice: string, outputPath: string, format?: string): Promise<void>;
export declare function synthesizeElevenLabs(text: string, voiceId: string, outputPath: string): Promise<void>;
export declare function detectProvider(): TTSProvider;
export declare function synthesizeSpeech(opts: TTSOptions): Promise<TTSResult>;
export declare function listVoices(provider?: TTSProvider): VoiceInfo[];
export declare const ttsTool: ToolDefinition;
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