效果如下，可能有点丑，但功能齐全…

NPM

npm install recorderx --sava

页面引用

import axios from 'axios'
import Recorderx, { ENCODE_TYPE } from "recorderx";
const rc = new Recorderx();

样式

  <!-- 语音 -->
         <i class="el-icon-microphone"  @click = 'handleBtnClick' ></i> 
         <!-- <audio controls autoplay id="audio"></audio> -->
        <ButtonGroup size='small' v-show = "news_img">
          <!-- <Button @click="play_mp3">播放</Button> -->
          <Button @click="send_voice">发送</Button>
          <Button @click="cancel_mp3">停止</Button>
           <!-- <Button @click="cancel">取消</Button> -->
        </ButtonGroup>

功能

 methods: {
      //录制语音
handleBtnClick: function () {
  let that = this
  // that.news_img = !that.news_img
 rc.start()
  .then(() => {
    that.news_img = !that.news_img
    console.log("start recording");
  })
  .catch(error => {
    alert('获取麦克风失败')
    console.log("Recording failed.", error);
  });
 },
//暂停语音
cancel_mp3: function() {
  rc.pause();
 
},
//取消语音
// cancel: function() {
//   rc.clear();
 
// },
//播放语音
// play_mp3:function(){
//   var wav = rc.getRecord({
//   encodeTo: ENCODE_TYPE.WAV,
//   compressible: true
// });
// document.getElementById('audio').src = URL.createObjectURL(wav);
// },
//发送语音
send_voice: function () {
   let that = this
var wav = rc.getRecord({
  encodeTo: ENCODE_TYPE.WAV,
  compressible: true
});
 var uuid = this.uuid;
 if (this.chatList != "") {
        var end_time = this.chatList[this.chatList.length - 1].addtime;
    }
 var formData = new FormData();
// formData.append('file',wav);
formData.append('topic_id',uuid);
formData.append('last_time',end_time);
formData.append('type',4);
formData.append("file", wav,Date.parse(new Date())+".wav");
let headers = {headers: {"Content-Type": "multipart/form-data"}}

axios.defaults.withCredentials=true
axios.post( this.https + "/admin/api/send_reply",formData,headers).then(data => {
          that.news_img = !that.news_img
            // this.reload();
             rc.clear();
        })
        .catch(err => {
          console.log(err);
        });
//  this.$request({
//         url: "/api/send_reply",
//         method: "post",
//         data:formData,
//        headers: {"Content-Type": "multipart/form-data"}
//       }).then(data => {
//           that.news_img = !that.news_img
//           this.content = "";
//         })
//         .catch(err => {
//           console.log(err);
//         });
},
}

注释

rc.start();//录音
  rc.pause();//暂停录音
    rc.clear();//清除录音缓存

更多用法见大佬GitHub