import { Audio } from './audio/audio';
import { AudioAnalyser } from './audio/audioAnalyser';
import { AudioListener } from './audio/audioListener';
export declare const AudioFormats: {
    aac: string;
    caf: string;
    flac: string;
    mp3: string;
    mp4: string;
    ogg: string;
    wav: string;
    webm: string;
};
export declare class AudioManager {
    static get VERSION(): string;
    private _loader;
    private _listener;
    private _fileLoader;
    private cache;
    analyser(audio: Audio, fftSize?: number): AudioAnalyser;
    constructor();
    get listener(): AudioListener;
    load(key: string, url: string, ...formats: Array<keyof typeof AudioFormats>): Promise<void>;
    add(key: string): Promise<Audio>;
    private getBestFormat;
}
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