使用 Amazon Polly 提供实时家居监控警报

public String convertTextToSpeech(final String text, final String polyVoiceId) {  log.info("Converting " + text + " to speech");  // Create speech synthesis request.  SynthesizeSpeechRequest synthesizeSpeechRequest = new SynthesizeSpeechRequest()  .withText(text)  .withVoiceId(polyVoiceId)  .withOutputFormat(OutputFormat.Mp3);
  // Get the synthesized speech audio stream.  SynthesizeSpeechResult synthesizeSpeechResult = awsPollyClient.synthesizeSpeech(synthesizeSpeechRequest);      // store audio stream of Polly to S3 as an MP3 file  byte[] bytes = null;  try {    bytes = IOUtils.toByteArray(synthesizeSpeechResult.getAudioStream());  } catch (IOException e) {    log.error("Could not get bytes from the audio stream " + e.getMessage());  }      ObjectMetadata omd = new ObjectMetadata();  omd.setContentType(synthesizeSpeechResult.getContentType());  omd.setContentLength(bytes.length);  ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);  String fileName = getRandomString();  final PutObjectRequest s3Put = new PutObjectRequest(pollySpeechBucket, fileName, byteArrayInputStream, omd).withCannedAcl(CannedAccessControlList.PublicRead);
  amazonS3Client.putObject(s3Put);
  return S3URL;}