import type { HTMLSound } from './html';
import type { IPlayOptions } from './interfaces';
import type { WebSound } from './web';
import { TimelineNode } from '../main';
import { HTMLAudio } from './html';
import { WebAudio } from './web';
export type PlatformAudio = WebAudio | HTMLAudio;
export type PlatformSound = WebSound | HTMLSound;
export declare class Audio extends TimelineNode {
    protected static _soundPool: PlatformSound[];
    protected _sounds: PlatformSound[];
    /** PlatformAudio */
    protected _platformAudio: HTMLAudio | WebAudio;
    get platformAudio(): PlatformAudio;
    /** Src */
    protected _src: string;
    get src(): string;
    set src(val: string);
    isLoaded: boolean;
    get isPlayable(): boolean;
    /** Duration */
    get audioDuration(): number;
    /** Volume */
    protected _volume: number;
    get volume(): number;
    set volume(val: number);
    /** Muted */
    protected _muted: boolean;
    get muted(): boolean;
    set muted(val: boolean);
    /** PlaybackRate */
    protected _playbackRate: number;
    get playbackRate(): number;
    set playbackRate(val: number);
    /** IsPlaying */
    protected _isPlaying: boolean;
    get isPlaying(): boolean;
    multiple: boolean;
    start: number;
    end: number;
    constructor(src?: string);
    protected _updateProperty(key: string, value: any, oldValue: any): void;
    load(): Promise<this>;
    pause(): this;
    resume(): this;
    stop(): this;
    play(options?: IPlayOptions): PlatformSound | undefined;
    protected _removeSounds(): void;
    protected _createSound(): PlatformSound;
    refresh(): void;
    refreshPaused(): void;
    protected _onComplete: (sound: PlatformSound) => void;
    protected _recycleSound(sound: PlatformSound): void;
    protected _prevTime: number;
    protected _timer: number;
    protected _process(delta: number): void;
    protected _setTimeStop(): void;
}