import { PushAudioOutputStreamCallback } from "microsoft-cognitiveservices-speech-sdk/distrib/lib/src/sdk/Audio/PushAudioOutputStreamCallback";
import { Subject } from 'rxjs';
export declare class FmPushAudioOutputStreamCallback extends PushAudioOutputStreamCallback {
    audioContext: AudioContext;
    audioDataSubject: Subject<ArrayBuffer>;
    playedSubject: Subject<boolean>;
    isPlaying: boolean;
    isClosed: boolean;
    audioBufferQueue: any[];
    maxBufferSize: number;
    constructor();
    writeCount: number;
    write(data: ArrayBuffer): Promise<void>;
    playAudio(buffers: ArrayBuffer[]): Promise<void>;
    mergeArrayBuffers(arrayBuffers: ArrayBuffer[]): ArrayBuffer;
    stop(): Promise<void>;
    close(): Promise<void>;
}