public static final TextToSpeechClient create() throws IOException {
    return create(TextToSpeechSettings.newBuilder().build());
  }
Constructs an instance of TextToSpeechClient with default settings.
java-texttospeech/google-cloud-texttospeech/src/main/java/com/google/cloud/texttospeech/v1beta1/TextToSpeechClient.java