import { HMSAudioPlugin, HMSAudioPluginType, HMSPluginSupportResult } from '@100mslive/hms-video';
export declare class HMSNoiseSuppressionPlugin implements HMSAudioPlugin {
    suppressNoise: boolean;
    nodesConnected: boolean;
    nodesCreated: boolean;
    addNoise?: boolean;
    noiseNode?: any;
    processingNode: any;
    module: any;
    bufferSize: number;
    samplingRate: number;
    channels: number;
    durationInMs: number;
    audioContext: AudioContext | null;
    sourceNode: MediaStreamAudioSourceNode | null;
    startTime: any;
    constructor(durationInMs?: number);
    init(): Promise<void> | void;
    isSupported(): boolean;
    checkSupport(ctx?: AudioContext): HMSPluginSupportResult;
    getName(): string;
    getPluginType(): HMSAudioPluginType;
    getBufferSize(): number;
    stop(): void;
    setEnabled(value: boolean): void;
    removeNoise(buffer: any, module: any): void;
    processAudioTrack(audioContext: AudioContext, sourceNode: MediaStreamAudioSourceNode): Promise<AudioNode>;
    private static log;
    private onAudioProcess;
    private connectAudioNodes;
    private createNodes;
    private addRandomNoise;
    private processNoiseNode;
}