import { ErrorCallback, AudioConfiguration, MicrophoneState, MicrophoneStateChangeCallback, VolumeChangeCallback } from '../../types';
import { ConfigurationService } from '../../configuration';
import { MediaStreamService } from '../media-stream.service';
import { AudioDataCallback } from '../audio-processing-pipeline.service';

export declare class MicrophoneController {
    private configService;
    private mediaStreamService;
    private stateCallbacks;
    private volumeCallbacks;
    private errorCallbacks;
    private isInternalUpdate;
    private previewTrack;
    private unsubscribes;
    constructor(configService: ConfigurationService, mediaStreamService: MediaStreamService);
    private setupEventListeners;
    destroy(): void;
    private handleConfigurationChange;
    updateAudioProcessing: (options: {
        echoCancellation?: boolean;
        noiseSuppression?: boolean;
        autoGainControl?: boolean;
    }) => Promise<void>;
    updateDevice: (deviceId: string) => Promise<void>;
    updateVolumeThreshold: (threshold: number) => void;
    private restart;
    enable: (deviceId?: string) => Promise<void>;
    getConfiguration: () => AudioConfiguration;
    disable: () => void;
    toggleMute: () => Promise<void>;
    toggle: () => Promise<void>;
    preview: (deviceId?: string) => Promise<MediaStreamTrack>;
    publishPreview: () => Promise<void>;
    stopPreview: () => void;
    reset: () => Promise<void>;
    switchDevice: (deviceId: string) => Promise<void>;
    setGain: (value: number) => void;
    getGain: () => number;
    getFrequencyData: () => Uint8Array;
    getWaveformData: () => Uint8Array;
    onAudioData: (callback: AudioDataCallback) => VoidFunction;
    onTrackReplaced: (callback: (event: {
        oldTrack: MediaStreamTrack;
        newTrack: MediaStreamTrack;
    }) => void) => VoidFunction;
    onStateChange: (callback: MicrophoneStateChangeCallback) => VoidFunction;
    onVolumeChange: (callback: VolumeChangeCallback) => VoidFunction;
    onError: (callback: ErrorCallback) => VoidFunction;
    private _notifyStateChange;
    private _notifyVolumeChange;
    private _notifyError;
    getStream(): MediaStream | null;
    getTrack(): MediaStreamTrack | null;
    get state(): MicrophoneState;
}