/**
 * 音频配置类
 */
export declare class AudioConfig {
    static readonly DEFAULT_SAMPLE_RATE = 16000;
    static readonly DEFAULT_NUM_CHANNELS = 1;
    static readonly DEFAULT_PLAYER_SAMPLE_RATE = 16000;
    static readonly DEFAULT_FRAME_MS = 600;
    static readonly DEFAULT_SILENCE_THRESHOLD = 1;
    static readonly DEFAULT_SILENCE_DURATION = 1000;
    static readonly DEFAULT_ECHO_CANCELLATION = true;
    static readonly DEFAULT_NOISE_SUPPRESSION = true;
    static readonly DEFAULT_AUTO_GAIN_CONTROL = false;
    readonly sampleRate: number;
    readonly numChannels: number;
    readonly playerSampleRate: number;
    readonly frameMs: number;
    readonly silenceThreshold: number;
    readonly silenceDuration: number;
    /** 回声消除（AEC）：用于降低程序播放声被麦克风录入 */
    readonly echoCancellation: boolean;
    /** 噪声抑制：用于降低环境噪声 */
    readonly noiseSuppression: boolean;
    /** 自动增益控制（AGC）：用于自动调节输入音量 */
    readonly autoGainControl: boolean;
    constructor(options?: AudioConfigOptions);
}

/**
 * 音频配置选项接口
 */
export declare interface AudioConfigOptions {
    /** 录音采样率（默认：16000） */
    sampleRate?: number;
    /** 录音声道数（默认：1） */
    numChannels?: number;
    /** 播放采样率（默认：16000） */
    playerSampleRate?: number;
    /** 每帧音频长度（毫秒，默认：600） */
    frameMs?: number;
    /** 静音阈值（默认：1，越大越“难”触发静音） */
    silenceThreshold?: number;
    /** 静音持续时间（毫秒，默认：1000） */
    silenceDuration?: number;
    /** 回声消除（AEC）：用于降低程序播放声被麦克风录入（默认：开启） */
    echoCancellation?: boolean;
    /** 噪声抑制：用于降低环境噪声（默认：开启） */
    noiseSuppression?: boolean;
    /** 自动增益控制（AGC）：用于自动调节输入音量（默认：关闭） */
    autoGainControl?: boolean;
}

export declare class AudioPlayer extends EventTarget {
    static readonly BLEND_SHAPE_EVENT = "blendShapeEvent";
    static readonly PLAY_END_EVENT = "playEndEvent";
    private audioContext;
    private source;
    private gainNode;
    private audioChunks;
    playing: boolean;
    muted: boolean;
    bs: number[];
    private config;
    private playToken;
    private readonly unlockAudioContext;
    constructor(config?: AudioConfig);
    addAudio(audioStr: string, bsArray: [][]): void;
    /**
     * 设置静音状态
     * @param muted true 为静音，false 为正常音量
     * @param smooth 是否使用平滑过渡（默认 true）
     */
    setMute(muted: boolean, smooth?: boolean): void;
    stop(): void;
    dispose(): void;
    private playNextAudioChunk;
    private createAudioBufferFromInt16Base64;
}

/**
 * 音频录制器类，负责麦克风录音和音频数据处理
 * 使用 AudioWorklet (替代已弃用的 ScriptProcessor) 进行高性能音频处理
 */
export declare class AudioRecorder extends EventTarget {
    static readonly FRAME_EVENT = "frameEvent";
    static readonly POWER_EVENT = "powerEvent";
    private audioContext;
    private mediaStream;
    private sourceNode;
    private workletNode;
    private audioQueue;
    private isRecording;
    private config;
    private silenceStartTime;
    private frameSamples;
    constructor(config?: AudioConfig);
    /**
     * 开始录制
     */
    startRecording(): Promise<AudioRecorder>;
    /**
     * 停止录制
     */
    stopRecording(): Promise<AudioRecorder>;
    /**
     * 处理音频数据 (From AudioWorklet)
     */
    private handleAudioProcess;
    /**
     * 处理并发送音频帧
     */
    private processAndSendFrames;
    private resample;
    private floatTo16LEBytes;
    private uint8ToBase64;
    /**
     * 清理资源
     */
    private cleanup;
    /**
     * 获取录音状态
     */
    get recording(): boolean;
    /**
     * 销毁实例
     */
    dispose(): void;
}

/**
 * 对话管理器类，负责管理WebSocket连接、音频录制和相关事件处理
 */
declare class ChatManager extends EventTarget {
    static readonly ASR_EVENT = "asrEvent";
    static readonly SUBTITLE_EVENT = "subtitleEvent";
    static readonly BLEND_SHAPE_EVENT = "blendShapeEvent";
    static readonly PLAY_END_EVENT = "playEndEvent";
    static readonly POWER_EVENT = "powerEvent";
    static readonly DIS_CONNECT_EVENT = "disConnectEvent";
    static readonly CLIENTS_FULL_EVENT = "clientsFullEvent";
    private chatSocket;
    private readonly chatServerUrl;
    private isChatConnected;
    private readonly audioRecorder;
    readonly audioPlayer: AudioPlayer;
    private readonly audioConfig;
    private readonly fileSaver;
    /**
     * 是否启用数据保存功能 (保存音频和BS数据到本地JSON文件)
     */
    enableA2ESaving: boolean;
    constructor(serverUrl: string, audioOptions?: AudioConfigOptions);
    /**
     * 连接音频服务器
     * @param uid 可选的用户标识
     * @param voice 可选的音色标识
     * @param llm 可选的LLM模型标识
     * @returns Promise<void> 连接建立完成的Promise
     */
    connect(uid?: string, voice?: string, llm?: string): Promise<void>;
    /**
     * 发送身份标识信息（如果需要）
     */
    private sendIdentityIfNeeded;
    /**
     * 处理服务器消息
     */
    private handleServerMessage;
    /**
     * 发送语音对话音频数据到服务器
     */
    private sendAudioData;
    /**
     * 发送对话文本到服务器
     */
    sendTextData(data: string): void;
    /**
     * 发送无脑TTS文本到服务器
     */
    sendTtsTextData(data: string): void;
    /**
     * 重置对话服务器
     */
    resetChatServer(): void;
    /**
     * 断开对话服务器
     */
    disconnect(): void;
    /**
     * 开始麦克风录音
     */
    startMic(): Promise<AudioRecorder>;
    /**
     * 停止麦克风录音
     */
    stopMic(): Promise<AudioRecorder>;
    /**
     * 获取音频配置
     */
    getAudioConfig(): AudioConfig;
    /**
     * 获取连接状态
     */
    get isConnected(): boolean;
    /**
     * 获取录音状态
     */
    get isRecording(): boolean;
    /**
     * 播放本地JSON文件中的音频和BlendShape数据
     * @param url JSON文件地址
     */
    playA2EJson(url: string): Promise<void>;
    /**
     * 保存A2E数据
     */
    saveA2EJson(): Promise<void>;
    /**
     * 销毁资源
     */
    dispose(): void;
}
export { ChatManager }
export default ChatManager;

export { }