1、项目界面截图
2、封装class类方法(实例化调用)
javascript
// 语音播报的函数
export default class SpeakVoice {
constructor(vm, config) {
let that = this
that._vm = vm
that.config = {
text: '春江潮水连海平,海上明月共潮生。滟滟随波千万里,何处春江无月明!',
volume: 1, // 声音音量:1,范围从0到1
rate: 1, // 设置语速:1,范围从0到100
labelData:{
name:''
},
...config
}
that.synth = window.speechSynthesis // 启用文本
that.instance = new SpeechSynthesisUtterance()
that.instance.lang = "zh-CN"; // 使用的语言:中文
that.status = '初始化'
that.isload = false;
that.initVoice();
}
// 初始化
initVoice(){
let that = this
if(that.isload){
return false
}else{
that.isload = true
that.instance.text = that.config.text; // 文字内容: 测试内容
that.instance.volume = that.config.volume;
that.instance.rate = that.config.rate;
that.instance.onstart = e => {
that.status = '开始播放'
}
that.instance.onend = e => {
that.status = '结束播放'
}
that.instance.onpause = e => {
this.status = "暂停播放"
}
}
/*let speech = that.getSpeechVoices();
speech.then((voices) => {
voices = voices.filter(item => (item.lang.indexOf('zh-') > -1 && item.localService));
if (voices.length === 0) {
console.error('没有可用的中文语音!'); //中文包可以调试多种语言包切换
}else {
//实例化播报内容
that.instance.lang = "zh-CN"; // 使用的语言:中文
that.instance.text = '测试内容'; // 文字内容: 测试内容
that.instance.volume = 1
that.instance.rate = 1
that.instance.voice = voices[0]
that.synth.speak(that.instance); // 播放
}
});*/
}
// 语音开始
handleSpeak() {
this.synth.speak(this.instance); // 播放
}
// 语音队列重播
handleReply() {
this.handleCancel();
this.handleSpeak()
}
// 语音队列删除 , 删除队列中所有的语音.如果正在播放,则直接停止
handleCancel() {
this.synth.cancel(this.instance);
}
// 语音暂停, 暂停语音该次语音播放
handleStop() {
this.synth.pause(this.instance);
}
// 恢复暂停的语音
handleResume(){
this.synth.resume(this.instance) //恢复暂停的语音
}
//获取语言包数据, 这个接口需要一点时间,改成异步的
getSpeechVoices() {
let that = this
return new Promise(function (resolve, reject) {
let id;
id = setInterval(() => {
if (that.synth.getVoices().length !== 0) {
resolve(that.synth.getVoices());
clearInterval(id);
}
}, 10);
}
)
}
destory () {
this.handleCancel()
}
}
// 语音删除重播
export function handleReturnStop(e,callBack) {
const synth = window.speechSynthesis; // 启用文本
const msg = new SpeechSynthesisUtterance(); // 表示一次发音请求。其中包含了将由语音服务朗读的内容,以及如何朗读它(例如:语种
msg.text = e;
msg.lang = "zh-CN";
synth.cancel(msg); // 删除队列中所有的语音.如果正在播放,则直接停止
debugger
callBack && callBack()
}
// 语音停止
export function handleStop(e) {
const synth = window.speechSynthesis; // 启用文本
const msg = new SpeechSynthesisUtterance(); // 表示一次发音请求。其中包含了将由语音服务朗读的内容,以及如何朗读它(例如:语种
msg.text = e;
msg.lang = "zh-CN";
synth.pause(msg); // 暂停语音该次语音播放
}
//这个接口获取数据需要一点时间,改成异步的
export function setSpeech() {
return new Promise(
function (resolve, reject) {
let synth = window.speechSynthesis;
let id;
id = setInterval(() => {
if (synth.getVoices().length !== 0) {
resolve(synth.getVoices());
clearInterval(id);
}
}, 10);
}
)
}
3、实例化父组件
javascript
<i title="播放" class="el-icon-microphone" @click="actMicroFun"></i>
import SpeakVoice from './speak-voice.js'
actMicroFun () {
let speakVoice = new SpeakVoice();
speakVoice.handleReply();
}
4、关于语音api解析
javascript
属性设置
SpeechSynthesisUtterance.lang 获取并设置话语的语言
SpeechSynthesisUtterance.pitch 获取并设置话语的音调(值越大越尖锐,越低越低沉)
SpeechSynthesisUtterance.rate 获取并设置说话的速度(值越大语速越快,越小语速越慢)
SpeechSynthesisUtterance.text 获取并设置说话时的文本
SpeechSynthesisUtterance.voice 获取并设置说话的声音
SpeechSynthesisUtterance.volume 获取并设置说话的音量
函数设置
speechSynthesis.speak() 将对应的实例添加到语音队列中
speechSynthesis.cancel() 删除队列中所有的语音.如果正在播放,则直接停止
speechSynthesis.pause() 暂停语音
speechSynthesis.resume() 恢复暂停的语音
speechSynthesis.getVoices() 获取支持的语言数组.