export declare class LyricRenderer {
    container: HTMLElement;
    lyrics: any[];
    lyricElements: any[];
    lyricDisplayMode: number;
    private tempoMultiplier;
    constructor(container: HTMLElement);
    /**
     * Set tempo multiplier (1.0 = normal speed, 0.5 = half speed, 2.0 = double speed)
     */
    setTempoMultiplier(multiplier: number): void;
    /**
     * Get current tempo multiplier
     */
    getTempoMultiplier(): number;
    setLyrics(lyrics: any[]): void;
    setDisplayMode(mode: number): void;
    isThaiVowelOrDiacritic(char: string): boolean;
    isOnlyThaiVowels(text: string): boolean;
    preRenderLyrics(): void;
    update(currentTime?: number): void;
    highlightWords(lineEl: HTMLElement, parts: any[], current: number): void;
}