HarmonyOS 鸿蒙Next AudioCapturer录制文件已损坏，无法播放

async start() {
  if (this.audioCapturer !== undefined) {
    let stateGroup = [audio.AudioState.STATE_PREPARED, audio.AudioState.STATE_PAUSED, audio.AudioState.STATE_STOPPED];
    if (stateGroup.indexOf(this.audioCapturer.state.valueOf()) === -1) { // 当且仅当状态为STATE_PREPARED、STATE_PAUSED和STATE_STOPPED之一时才能启动采集
      Logger.error(start failed);
      return;
    }
    await this.audioCapturer.start(); // 启动采集
    let file: fs.File = fs.openSync(this.filePath, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE); // 如果文件不存在则创建文件
    let fd = file.fd;
    let numBuffersToCapture = 150; // 循环写入150次
    let count = 0;

    class Options {
      offset: number = 0;
      length: number = 0
    }

    while (numBuffersToCapture) {
      let bufferSize = await (this.audioCapturer as audio.AudioCapturer).getBufferSize();
      let buffer = await (this.audioCapturer as audio.AudioCapturer).read(bufferSize, true);
      let options: Options = {
        offset: count * bufferSize,
        length: bufferSize
      };
      if (buffer === undefined) {
        Logger.error(read buffer failed);
      } else {
        let number = fs.writeSync(fd, buffer, options);
        Logger.info(write date: ${number});
      }
      numBuffersToCapture–;
      count++;
    }
  }
}