import { AgoraObservable } from 'agora-foundation/lib/utilities/observable';
import { AgoraRtcClientObserver } from '../core/rtc/type';
export declare class AgoraWebAudioPlayer {
    private _observable;
    protected logger: import("agora-foundation/lib/logger").Logger;
    private _audioContext?;
    private _audioTagId;
    private _playingSourceNode?;
    private _analyserNode?;
    private _volumePollingTask?;
    private _initialized;
    private _containerNode;
    private _audioPlaybackDeviceId?;
    private _htmlAudioElement?;
    private _currentVolume;
    get audioPlaybackDeviceId(): string | undefined;
    constructor(_observable: AgoraObservable<AgoraRtcClientObserver>);
    release(): number;
    setContainerNode(node: HTMLElement): void;
    /**
     * 设置当前 Audio 的音量(0~400)
     * @param volume 音量值，范围 0~400
     */
    setPlayVolume(volume: number): void;
    /**
     * 切换播放设备
     * @param deviceId 设备ID
     */
    setPlaybackDeviceId(deviceId: string): Promise<void>;
    play(url: string, interval: number): Promise<void>;
    stop(): void;
    private _initialize;
    private _getAudioVirtualDom;
}