我也遇到同样的问题，代码：
playVoice (v) {
    let text = v.currentTarget.dataset.msg;
    console.log("current text", text);
    if (text.length > 150) {
      text = text.substring(0, 150);
    }
    plugin.textToSpeech({
      lang: "zh_CN",
      tts: true,
      content: text,
      success: (res) => {
        this.setData({
          src: res.filename,
        });
        this.audioPlay();
      },
    });
    return false;
  },
//播放语音
  audioPlay(e) {

    if (this.data.src == “”) {
      console.log(`暂无语音`);
      return;
    }
    // innerAudioContext.autoplay = true;
    //设置音频地址
    innerAudioContext.src = this.data.src;
    //播放音频
    innerAudioContext.play();
  },


报错:Unable to decode audio data“，播放不了