vue使用WEB自带TTS实现语音文字互转的操作方法

// 创建 SpeechSynthesisUtterance 对象
var speechUtterance = new SpeechSynthesisUtterance('Hello, how are you?');
// 创建 SpeechSynthesis 对象
var synthesis = window.speechSynthesis;
// 设置语音合成的事件处理函数
// 开始语音合成
speechUtterance.onstart = function(event) {
  console.log('Speech synthesis started.');
};
// 结束语音合成
speechUtterance.onend = function(event) {
  console.log('Speech synthesis ended.');
};
// 暂停语音合成
speechUtterance.onpause = function(event) {
  console.log('Speech synthesis paused.');
};
// 恢复语音合成
speechUtterance.onresume = function(event) {
  console.log('Speech synthesis resumed.');
};
// 分段语音合成
speechUtterance.onboundary = function(event) {
  console.log('Speech boundary reached at character index ' + event.charIndex + '.');
};
// 启动语音合成
var btn = document.querySelector('button');
btn.addEventListener('click', function() {
  synthesis.speak(speechUtterance);
});

// 创建 SpeechRecognition 对象
var recognition = new window.SpeechRecognition();
// 设置语音识别的事件处理函数
// 开始语音识别
recognition.onstart = function(event) {
  console.log('Speech recognition started.');
};
// 结束语音识别
recognition.onend = function(event) {
  console.log('Speech recognition ended.');
};
// 识别到语音结果
recognition.onresult = function(event) {
  var transcript = event.results[0][0].transcript;
  console.log('Recognized speech: ' + transcript);
};
// 启动语音识别
var btn = document.querySelector('button');
btn.addEventListener('click', function() {
  recognition.start();
});

<template>
  <div>
    <el-page-header @back="goBack" content="语音转文字"/>
    <div class="bank"></div>
    <el-card header="语音转文字">
      <el-card>
        <el-input :readonly="true" id="word" v-model="word"></el-input>
      </el-card>
      <el-card>
        <el-button type="primary" @click="audioCHangeWord"><span v-if="isListening">语音识别中...</span><span v-else>语音识别</span></el-button>
      </el-card>
    </el-card>
  </div>
</template>

<script>
export default {
  name: "AudioToWord",
  data() {
    return {
      word: "",
      isListening: false, // 判断是否在语音监听中
    }
  },
  methods: {
    audioCHangeWord() { 
      var that = this;
      that.word = "";
      // 创建SpeechRecognition对象
      // eslint-disable-next-line no-undef
      var recognition = new webkitSpeechRecognition();
      if (!recognition) { 
        // eslint-disable-next-line no-undef
        recognition = new SpeechRecognition();
      }
      // 设置语言
      recognition.lang = 'zh-CN';
      // 开始语音识别
      recognition.start();
      that.isListening = true;
      // 监听识别结果
      recognition.onresult = function (event) {
        var result = event.results[0][0].transcript;
        that.word = result;
      };
      // 监听错误事件
      recognition.onerror = function (event) {
        that.isListening = false;
        that.$message("监听语音失败:"+event.error);
        console.error(event.error);
      };
      // 监听结束事件（包括识别成功、识别错误和用户停止）
      recognition.onend = function () {
        that.isListening = false;
        console.log("语音识别停止");
      };
    },
    goBack() {
      this.$router.push({ path: "/entry" })
    }
  }
}
</script>

<template>
  <div>
    <el-page-header @back="goBack" content="文字转语音"/>
    <div class="bank"></div>
    <el-card header="文字转语音">
      <el-input
        id="word"
        type="textarea"
        placeholder="请输入文本"
        v-model="word"
        maxlength="300"
        rows="4"
        show-word-limit
      >
      </el-input>
      <div class="bank"></div>
      <el-card>
        <el-button @click="changeToAudio" type="primary">转为语音</el-button>
      </el-card>
      <div class="bank"></div>
      <el-card>
          <el-button @click="pause" type="warning">暂停</el-button>
          <el-button @click="resume" type="success">继续</el-button>
          <el-button @click="cancel" type="info">取消</el-button>
      </el-card>
      <div class="bank"></div>
      <el-card>
        <el-button @click="getvoice" type="primary">获取语音合成数据(F12)</el-button>
      </el-card>
    </el-card>
  </div>
</template>

<script>
export default {
  name: "WordToAudio",
  data() {
    return {
      word: "",
      isPaused: false, // 判断是否暂停
    }
  },
  methods: {
    // 选
    changeToAudio() {
      if (!this.word) {
        this.$message("请输入文本");
        return;
      }
      if (this.isPaused) {
        this.$message("当前语音已暂停,请点击继续!");
        return;
      } else if (window.speechSynthesis.speaking) {
        this.$message("当前已有正在播放的语音!");
        return;
      }
      // 为了防止在暂停状态下转语音，调用前设置继续播放
      window.speechSynthesis.resume();
      // 设置播放
      var textArea = document.getElementById('word');
      var range = document.createRange();
      range.selectNodeContents(textArea);
      var speech = new SpeechSynthesisUtterance();
      speech.text = this.word; // 内容
      speech.lang = "zh-cn"; // 语言
      speech.voiceURI = "Microsoft Huihui - Chinese (Simplified, PRC)"; // 声音和服务
      // eslint-disable-next-line no-irregular-whitespace
      speech.volume = 0.7; // 声音的音量区间范围是​​0​​​到​​1默认是​​1​​
      // eslint-disable-next-line no-irregular-whitespace
      speech.rate = 1; // 语速，数值，默认值是​​1​​​，范围是​​0.1​​​到​​10​​​，表示语速的倍数，例如​​2​​表示正常语速的两倍
      // eslint-disable-next-line no-irregular-whitespace
      speech.pitch = 1; // 表示说话的音高，数值，范围从​​0​​​（最小）到​​2​​​（最大）。默认值为​​1​​。
      window.speechSynthesis.speak(speech);
      var highlight = document.createElement('span');
      highlight.style.backgroundColor = 'red';
      range.surroundContents(highlight);
    },
    // 暂停
    pause() {
      this.isPaused = true;
      window.speechSynthesis.pause();
    },
    // 继续
    resume() {
      this.isPaused = false;
      window.speechSynthesis.resume();
    },
    // 取消
    cancel() {
      window.speechSynthesis.cancel();
    },
    getvoice() {
      console.log(window.speechSynthesis.getVoices());
    },
    goBack() { 
      this.$router.push({path: "/entry"})
    }
  }
}
</script>
<style>
.bank {
  padding: 10px;
}
</style>