Read SSML from a text file

Read SSML from a text file.

Code sample


// SynthesizeSSMLFile synthesizes the SSML contents in ssmlFile and saves the
// output to outputFile.
// ssmlFile must be well-formed according to:
// Example: <speak>Hello there.</speak>
func SynthesizeSSMLFile(w io.Writer, ssmlFile, outputFile string) error {
	ctx := context.Background()

	client, err := texttospeech.NewClient(ctx)
	if err != nil {
		return err
	defer client.Close()

	ssml, err := ioutil.ReadFile(ssmlFile)
	if err != nil {
		return err

	req := texttospeechpb.SynthesizeSpeechRequest{
		Input: &texttospeechpb.SynthesisInput{
			InputSource: &texttospeechpb.SynthesisInput_Ssml{Ssml: string(ssml)},
		// Note: the voice can also be specified by name.
		// Names of voices can be retrieved with client.ListVoices().
		Voice: &texttospeechpb.VoiceSelectionParams{
			LanguageCode: "en-US",
			SsmlGender:   texttospeechpb.SsmlVoiceGender_FEMALE,
		AudioConfig: &texttospeechpb.AudioConfig{
			AudioEncoding: texttospeechpb.AudioEncoding_MP3,

	resp, err := client.SynthesizeSpeech(ctx, &req)
	if err != nil {
		return err

	err = ioutil.WriteFile(outputFile, resp.AudioContent, 0644)
	if err != nil {
		return err
	fmt.Fprintf(w, "Audio content written to file: %v\n", outputFile)
	return nil


 * Demonstrates using the Text to Speech client to synthesize a text file or ssml file.
 * @param ssmlFile the ssml document to be synthesized. (e.g., hello.ssml)
 * @throws Exception on TextToSpeechClient Errors.
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 =
            .setLanguageCode("en-US") // languageCode = "en_us"
            .setSsmlGender(SsmlVoiceGender.FEMALE) // ssmlVoiceGender = SsmlVoiceGender.FEMALE

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

    // 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")) {
      System.out.println("Audio content written to file \"output.mp3\"");
      return audioContents;


const textToSpeech = require('@google-cloud/text-to-speech');
const fs = require('fs');
const util = require('util');

const client = new textToSpeech.TextToSpeechClient();

 * TODO(developer): Uncomment the following lines before running the sample.
// const ssmlFile = 'Local path to SSML file, eg. input.ssml';
// const outputFile = 'Local path to save audio file to, e.g. output.mp3';

const request = {
  input: {ssml: fs.readFileSync(ssmlFile)},
  voice: {languageCode: 'en-US', ssmlGender: 'FEMALE'},
  audioConfig: {audioEncoding: 'MP3'},

const [response] = await client.synthesizeSpeech(request);
const writeFile = util.promisify(fs.writeFile);
await writeFile(outputFile, response.audioContent, 'binary');
console.log(`Audio content written to file: ${outputFile}`);


use Google\Cloud\TextToSpeech\V1\AudioConfig;
use Google\Cloud\TextToSpeech\V1\AudioEncoding;
use Google\Cloud\TextToSpeech\V1\SsmlVoiceGender;
use Google\Cloud\TextToSpeech\V1\SynthesisInput;
use Google\Cloud\TextToSpeech\V1\TextToSpeechClient;
use Google\Cloud\TextToSpeech\V1\VoiceSelectionParams;

 * @param string $path Path to file to synthesize
function synthesize_ssml_file(string $path): void
    // create client object
    $client = new TextToSpeechClient();

    // get ssml from file
    $ssml = file_get_contents($path);
    $input_text = (new SynthesisInput())

    // note: the voice can also be specified by name
    // names of voices can be retrieved with $client->listVoices()
    $voice = (new VoiceSelectionParams())

    $audioConfig = (new AudioConfig())

    $response = $client->synthesizeSpeech($input_text, $voice, $audioConfig);
    $audioContent = $response->getAudioContent();

    file_put_contents('output.mp3', $audioContent);
    print('Audio content written to "output.mp3"' . PHP_EOL);



def synthesize_ssml_file(ssml_file):
    """Synthesizes speech from the input file of ssml.

    Note: ssml must be well-formed according to:
    from import texttospeech

    client = texttospeech.TextToSpeechClient()

    with open(ssml_file, "r") as f:
        ssml =
        input_text = texttospeech.SynthesisInput(ssml=ssml)

    # Note: the voice can also be specified by name.
    # Names of voices can be retrieved with client.list_voices().
    voice = texttospeech.VoiceSelectionParams(
        language_code="en-US", ssml_gender=texttospeech.SsmlVoiceGender.FEMALE

    audio_config = texttospeech.AudioConfig(

    response = client.synthesize_speech(
        input=input_text, voice=voice, audio_config=audio_config

    # The response's audio_content is binary.
    with open("output.mp3", "wb") as out:
        print('Audio content written to file "output.mp3"')

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