Javascript Angular2:Web语音API-语音识别

在阅读了（Javascript语音识别）的文档后，我尝试在中实现它

但当我这么做的时候：

const recognition = new webkitSpeechRecognition();

TypeScript显示此错误：

[ts] Cannot find name 'webkitSpeechRecognition'. any

如果我试图从窗口中提取webkitSpeechRecognition：

if ('webkitSpeechRecognition' in window) {

    console.log("Enters inside the condition"); // => It's printing

    const { webkitSpeechRecognition } = window; // => TypeScript Error
    const recognition = new webkitSpeechRecognition();
}

如果我对最后两行进行注释，则会打印

console.log

，进入条件！webkitSpeechRecognition存在于窗口内！！但如果不注释最后两行，则TypeScript错误如下：

[ts] Type 'Window' has no property 'webkitSpeechRecognition' and no string index signature.
const webkitSpeechRecognition: any

---

如何在Angular 2中创建新的识别？有人试过吗？

我终于解决了创建界面的问题

export interface IWindow extends Window {
  webkitSpeechRecognition: any;
}

以及：

const{webkitSpeechRecognition}:IWindow=window；
const recognition=new-webkitSpeechRecognition（）；

您可以通过

const speechRecognition = Window['webkitSpeechRecognition'];

或者如果您正在使用jQuery

const sr = $(window).get(0).webkitSpeechRecognition;

home.component.html 应用程序模块 package.json

---

在Angular 9中，它对我有效，但使用了

const speechRecognition=window['webkitSpeechRecognition']
请注意，窗口“w”是小写的。
我在导出接口时遇到一个错误--接口中的窗口找不到WindoDo您有一个正常工作的演示吗？或者至少是接口和组件文件的示例？尝试直接这样做：
const{webkitSpeechRecognition}=（任何窗口）
@Aral-Roca您能分享一个示例源代码吗？ajharulabedeen@gmail.com. GitHub mail.您能分享一个示例源代码吗？ajharulabedeen@gmail.com. GitHub邮件。
const sr = $(window).get(0).webkitSpeechRecognition;

<select (change)="onChangeEvent($event)"><option>Chartdata</option><option>Tabledata</option></select>
<div id="chart" (click)="voice()">ChartData</div>
<div id="table">TableData</div>
<input type="text" placeholder="Speak out"/>
<p>RxCompoent.message: {{message}}</p>
<p><input type="text" value="{{message}}"></p>
  <button
    [disabled]="service.started$ | async"
    (click)="listen()"
  >listen</button>
  <p>lang: ja</p>
  <p>grammars: none</p>

import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';
import Speech from 'speak-tts';
 import { RxSpeechRecognitionService, resultList, } from '@kamiazya/ngx-speech-recognition';
@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css'],

  providers: [ RxSpeechRecognitionService ]
})
export class HomeComponent implements OnInit { 
    data:any;
    nestedjson:any;
    message = '';
 constructor(private formBuilder: FormBuilder,public service: RxSpeechRecognitionService) {


     }

  ngOnInit() {
    //  this.voicex();

} 
listen() {
    this.service
      .listen()
      .pipe(resultList)
      .subscribe((list: SpeechRecognitionResultList) => {
        this.message = list.item(0).item(0).transcript;
        console.log('RxComponent:onresult', this.message, list);
      });
  }

voice(){
this.voicex();
}
voicex(){
const ut = new SpeechSynthesisUtterance('Speak out');
speechSynthesis.speak(ut);  
}
onChangeEvent(ev) {
    console.log(ev.target.value); // should print option1
}   


}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { UsermanagementComponent } from './usermanagement/usermanagement.component';
import { HomeComponent } from './home/home.component';
import { HeaderComponent } from './shared/header/header.component';
import { LoginComponent } from './login/login.component';
import {HttpModule} from '@angular/http';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { ChartModule,HIGHCHARTS_MODULES } from 'angular-highcharts';
import * as exporting from 'highcharts/modules/exporting.src';
import * as exportdata from 'highcharts/modules/export-data.src';
import {SpeechRecognitionModule} from '@kamiazya/ngx-speech-recognition';

@NgModule({
  declarations: [
    AppComponent,
    UsermanagementComponent,
    HomeComponent,
    HeaderComponent,
    LoginComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    FormsModule,
    ReactiveFormsModule,
    HttpModule,
    ChartModule,
    SpeechRecognitionModule.withConfig({ lang: 'en-US', interimResults: true, maxAlternatives: 10, })
  ],
  providers: [{provide:HIGHCHARTS_MODULES,useFactory:() =>[exporting,exportdata]}],
  bootstrap: [AppComponent]
})
export class AppModule { }

{
  "name": "sampleproject",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~8.2.8",
    "@angular/common": "~8.2.8",
    "@angular/compiler": "~8.2.8",
    "@angular/core": "~8.2.8",
    "@angular/forms": "~8.2.8",
    "@angular/http": "^7.2.15",
    "@angular/platform-browser": "~8.2.8",
    "@angular/platform-browser-dynamic": "~8.2.8",
    "@angular/router": "~8.2.8",
    "@kamiazya/ngx-speech-recognition": "^0.4.3",
    "angular-highcharts": "^8.0.3",
    "highcharts": "^7.2.0",
    "jquery": "^3.4.1",
    "rxjs": "~6.4.0",
    "rxjs-compat": "^6.5.3",
    "speak-tts": "^2.0.8",
    "tslib": "^1.10.0",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.803.6",
    "@angular/cli": "~8.3.6",
    "@angular/compiler-cli": "~8.2.8",
    "@angular/language-service": "~8.2.8",
    "@types/node": "~8.9.4",
    "@types/jasmine": "~3.3.8",
    "@types/jasminewd2": "~2.0.3",
    "codelyzer": "^5.0.0",
    "jasmine-core": "~3.4.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.1.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.15.0",
    "typescript": "~3.5.3"
  }
}