1、项目界面截图
2、封装class类方法（实例化调用）
// 语音播报的函数
export default class SpeakVoice {constructor(vm, config) {let that = thisthat._vm = vmthat.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1rate: 1, // 设置语速：1，范围从0到100labelData:{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 = thisif(that.isload){return false}else{that.isload = truethat.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 = 1that.instance.rate = 1that.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 = thisreturn 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debuggercallBack && 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
<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
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.
