import type { Filters } from './types';
/**
 * Ready-made filter presets for `LavalinkPlayer`.
 *
 * Each preset returns a `Filters` object you can pass directly to
 * `player.setFilters()`, or use the convenience methods built into the player:
 * `player.bassBoost()`, `player.nightcore()`, `player.vaporwave()`, etc.
 */
export declare const FilterPresets: {
    /**
     * Bass boost — amplifies low-frequency bands.
     * @param level  'low' | 'medium' | 'high' | 'extreme'
     */
    readonly bassBoost: (level?: "low" | "medium" | "high" | "extreme") => Filters;
    /** Nightcore — increases speed and pitch for the classic effect */
    readonly nightcore: () => Filters;
    /** Vaporwave — slows and lowers pitch, adds warm low-end */
    readonly vaporwave: () => Filters;
    /** Soft — gentle low-pass filter, smooths out harsh highs */
    readonly soft: () => Filters;
    /** Pop — boosts low-mids, cuts high-mids for a punchy pop sound */
    readonly pop: () => Filters;
    /** Treble & bass — boosts both ends, cuts mids */
    readonly trebleBass: () => Filters;
    /** 8D audio — stereo rotation for a spatial "all-around" effect */
    readonly eightD: () => Filters;
    /** Karaoke — attempts to remove centre-panned vocals */
    readonly karaoke: () => Filters;
    /** Tremolo — volume oscillation (wavering effect) */
    readonly tremolo: () => Filters;
    /** Vibrato — pitch oscillation */
    readonly vibrato: () => Filters;
    /** Earrape — extreme distortion / clipping */
    readonly earrape: () => Filters;
    /**
     * Reset all filters to their defaults.
     * Sends explicit null for every optional filter so Lavalink clears them.
     */
    readonly clear: () => Filters;
};
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