/**
 * Voice Intelligence Module - Language Discovery and Voice Optimization
 * Implements language-centric architecture for automatic voice selection
 */
export interface VoiceInfo {
    id: string;
    name: string;
    language: string;
    languageCode: string;
    quality?: 'enhanced' | 'premium' | 'standard';
    gender?: 'male' | 'female';
}
export interface LanguageVoiceMapping {
    [languageCode: string]: {
        bestVoice: VoiceInfo;
        alternativeVoices: VoiceInfo[];
    };
}
export declare class VoiceIntelligence {
    private platform;
    private availableVoices;
    private languageMapping;
    private supportedLanguages;
    constructor();
    /**
     * Initialize voice intelligence by discovering available voices and languages
     */
    initialize(): Promise<void>;
    /**
     * Discover voices on macOS using 'say -v ?'
     */
    private discoverMacOSVoices;
    /**
     * Discover voices on Windows using PowerShell
     */
    private discoverWindowsVoices;
    /**
     * Discover voices on Linux using espeak
     */
    private discoverLinuxVoices;
    /**
     * Build language to voice mapping with quality-first selection
     * GDD v2.3: Premium > Enhanced > Standard, with gender preference only within same quality tier
     */
    private buildLanguageMapping;
    /**
     * Detect voice quality from quality indicator or comment
     */
    private detectVoiceQuality;
    /**
     * Detect gender from voice name
     */
    private detectGender;
    /**
     * Get human-readable language name from code
     */
    private getLanguageName;
    /**
     * Get supported languages for tool schema
     */
    getSupportedLanguages(): string[];
    /**
     * Get best voice for a language
     */
    getBestVoiceForLanguage(languageCode: string): VoiceInfo | null;
    /**
     * Get information about the voice that will be used for synthesis
     */
    getUsedVoiceInfo(languageCode?: string): string;
    /**
     * Check if parameter is a voice name rather than language code
     */
    private isVoiceName;
    /**
     * Find voice by exact name match (macOS only)
     */
    private findVoiceByName;
    /**
     * Get optimal voice command for platform
     */
    getVoiceCommand(text: string, languageCode?: string): string;
    /**
     * Sanitize text for command line
     */
    private sanitizeText;
}
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