vue의 발음을 바꾸는 방법

function changePitch (audioFile, pitchFactor) {
   var sound = new Pizzicato.Sound(audioFile);
   sound.speed = pitchFactor;
   return sound;
}

<template>
   <div>
      <audio
         ref="player"
         @play="onPlay"
         @pause="onPause"
         @timeupdate="onTimeUpdate"
         @ended="onEnded"
      ></audio>
   </div>
</template>

<script>
export default {
   props: {
      audioData: {
         type: Object,
         required: true
      }
   },

   data () {
      return {
         isPlaying: false,
         currentTime: 0,
         duration: 0
      }
   },

   methods: {
      play () {
         this.$refs.player.play();
         this.isPlaying = true;
      },

      pause () {
         this.$refs.player.pause();
         this.isPlaying = false;
      },

      togglePlay () {
         this.isPlaying ? this.pause() : this.play();
      },

      onPlay () {
         this.isPlaying = true;
      },

      onPause () {
         this.isPlaying = false;
      },

      onTimeUpdate () {
         this.currentTime = this.$refs.player.currentTime;
         this.duration = this.$refs.player.duration;
      },

      onEnded () {
         this.isPlaying = false;
         this.currentTime = 0;
         this.duration = 0;
      }
   },

   computed: {
      progress () {
         return this.duration ? this.currentTime / this.duration : 0;
      }
   },

   watch: {
      audioData: {
         immediate: true,
         handler (data) {
            this.$refs.player.src = URL.createObjectURL(
               data.blob || new Blob([data.buffer], {
                  type: 'audio/wav'
               })
            );
         }
      }
   }
}
</script>