import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class SpeechRecognitionService extends Observable<SpeechRecognitionResult[]> {
    private readonly classRef;
    private readonly lang;
    private readonly maxAlternatives;
    private readonly ngZone;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<SpeechRecognitionService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SpeechRecognitionService>;
}