texttospeech/cloud-client/src/main/java/com/example/texttospeech/SynthesizeFile.java [92:127]:
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  public static ByteString synthesizeSsmlFile(String ssmlFile) throws Exception {
    // Instantiates a client
    try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
      // Read the file's contents
      String contents = new String(Files.readAllBytes(Paths.get(ssmlFile)));
      // Set the ssml input to be synthesized
      SynthesisInput input = SynthesisInput.newBuilder().setSsml(contents).build();

      // Build the voice request
      VoiceSelectionParams voice =
          VoiceSelectionParams.newBuilder()
              .setLanguageCode("en-US") // languageCode = "en_us"
              .setSsmlGender(SsmlVoiceGender.FEMALE) // ssmlVoiceGender = SsmlVoiceGender.FEMALE
              .build();

      // Select the type of audio file you want returned
      AudioConfig audioConfig =
          AudioConfig.newBuilder()
              .setAudioEncoding(AudioEncoding.MP3) // MP3 audio.
              .build();

      // Perform the text-to-speech request
      SynthesizeSpeechResponse response =
          textToSpeechClient.synthesizeSpeech(input, voice, audioConfig);

      // Get the audio contents from the response
      ByteString audioContents = response.getAudioContent();

      // Write the response to the output file.
      try (OutputStream out = new FileOutputStream("output.mp3")) {
        out.write(audioContents.toByteArray());
        System.out.println("Audio content written to file \"output.mp3\"");
        return audioContents;
      }
    }
  }
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texttospeech/snippets/src/main/java/com/example/texttospeech/SynthesizeFile.java [92:127]:
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  public static ByteString synthesizeSsmlFile(String ssmlFile) throws Exception {
    // Instantiates a client
    try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
      // Read the file's contents
      String contents = new String(Files.readAllBytes(Paths.get(ssmlFile)));
      // Set the ssml input to be synthesized
      SynthesisInput input = SynthesisInput.newBuilder().setSsml(contents).build();

      // Build the voice request
      VoiceSelectionParams voice =
          VoiceSelectionParams.newBuilder()
              .setLanguageCode("en-US") // languageCode = "en_us"
              .setSsmlGender(SsmlVoiceGender.FEMALE) // ssmlVoiceGender = SsmlVoiceGender.FEMALE
              .build();

      // Select the type of audio file you want returned
      AudioConfig audioConfig =
          AudioConfig.newBuilder()
              .setAudioEncoding(AudioEncoding.MP3) // MP3 audio.
              .build();

      // Perform the text-to-speech request
      SynthesizeSpeechResponse response =
          textToSpeechClient.synthesizeSpeech(input, voice, audioConfig);

      // Get the audio contents from the response
      ByteString audioContents = response.getAudioContent();

      // Write the response to the output file.
      try (OutputStream out = new FileOutputStream("output.mp3")) {
        out.write(audioContents.toByteArray());
        System.out.println("Audio content written to file \"output.mp3\"");
        return audioContents;
      }
    }
  }
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