import type { BuiltFilterChain, VocalAnalysis, VocalClarity } from "../types/audio.js";
export interface VocalFilterBuildOptions {
    clarity: VocalClarity;
    strength: number;
}
/**
 * Vocal-only clarity chain. Never call buildFilterChain / full-mix presets from here.
 * Failed analysis metrics (null) skip optional corrective stages.
 */
export declare function buildVocalClarityFilterChain(analysis: VocalAnalysis, options: VocalFilterBuildOptions): BuiltFilterChain;