export interface Options {
    mediaStream?: MediaStream;
    element?: HTMLAudioElement;
    debug?: boolean;
    recorder?: MediaRecorderOptions;
    audio?: MediaTrackConstraints;
}
export declare class AudioRecorder {
    options: Options;
    latency: number;
    debug: boolean;
    mediaStream?: MediaStream;
    mediaRecorder?: MediaRecorder;
    recordingReady: boolean;
    mediaGranted: boolean;
    recording: boolean;
    onBuffer?: (info: [Blob, number]) => void;
    onReady?: (info: {
        mimeType: string;
        data: Blob;
        startTime: number;
    }) => void;
    onStop?: () => void;
    bufferHeader: Blob | null;
    afterStop: boolean;
    constructor(options?: Options, latency?: number);
    getSupportedMimeType(): void;
    onMediaGranted(mediaStream: MediaStream): void;
    reAddTracks(mediaStream: MediaStream): void;
    startRecording(): Promise<boolean | undefined>;
    stopRecording(): void;
}