HarmonyOS 鸿蒙Next 使用textToSpeech转换成音频，使用AudioRenderer播放时经常容易出现杂音

按以下尝试修改下TTSSpeakerUtil文件内容：

[@Concurrent](/user/Concurrent)
function writeBuf(filePath: string, buf: ArrayBuffer, offset: number = 0, seq: number) {
 console.info(`Demo start:${offset}, seq: ${seq}`)
 // 新建并打开文件
 let file = fs.openSync(filePath, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
 fs.writeSync(file.fd, buf, { offset });
 // 关闭文件
 fs.closeSync(file);
 console.info(`Demo end:${offset}, seq: ${seq}`)
}

class FileWriter {
 private offset: number = 0;
 private path: string = '';
 private count = 0;
 private group: taskpool.SequenceRunner = new taskpool.SequenceRunner();
 private pcmData: TreeMap<number, ArrayBuffer> = new TreeMap();
 constructor(contentId: string) {
   this.path = getPlayItemPath(contentId)
 }
 public write(buff: ArrayBuffer, seq: number): Promise<void> {
   this.pcmData.set(seq, buff);
   while (this.pcmData.length > 0 && this.count == this.pcmData.getFirstKey()) {
     let buf: ArrayBuffer = this.pcmData.remove(this.pcmData.getFirstKey());
     let task = new taskpool.Task(writeBuf, this.path, buf, this.offset, this.count);
     let length = buf.byteLength;
     this.group.execute(task);
     this.offset += length;
     this.count++;
   }
 }
 public delete() {
   fs.unlink(this.path)
 }
 public close(): void {
 }
 canRead(): boolean {
   return this.count > 100
 }
}
// onData回调修改
 // 返回音频流
 async onData(requestId: string, audio: ArrayBuffer, response: textToSpeech.SynthesisResponse) {
   ZHGLog.info("covert Listener ", 'onData: ' + 'requestId: ' + requestId + ' response: ' + JSON.stringify(response));
   fileManager.get(requestId).write(audio, response.sequence);
   if (needPlay && fileManager.get(requestId).canRead()) {
     audioPlayerManager.playOrPause(requestId, false)
     needPlay = false
   }
 },