Veranschaulicht die Verwendung von SSML mit der Text-to-Speech API.
Dokumentationsseiten mit diesem Codebeispiel
Die folgenden Dokumente enthalten das Codebeispiel im Kontext:
Codebeispiel
C#
/// <summary>
/// Creates an audio file from the SSML-formatted string.
/// </summary>
/// <param name="ssml">SSML string to synthesize</param>
/// <remarks>
/// Generates a file named 'output.mp3' in project folder.
/// Note: SSML must be well-formed according to:
/// https://www.w3.org/TR/speech-synthesis/
/// </remarks>
public static void SynthesizeSSML(string ssml)
{
var client = TextToSpeechClient.Create();
var response = client.SynthesizeSpeech(new SynthesizeSpeechRequest
{
Input = new SynthesisInput
{
Ssml = ssml
},
// Note: voices can also be specified by name
Voice = new VoiceSelectionParams
{
LanguageCode = "en-US",
SsmlGender = SsmlVoiceGender.Female
},
AudioConfig = new AudioConfig
{
AudioEncoding = AudioEncoding.Mp3
}
});
using (Stream output = File.Create("output.mp3"))
{
response.AudioContent.WriteTo(output);
}
}Go
// SynthesizeSSML synthesizes ssml and saves the output to outputFile.
//
// ssml must be well-formed according to:
// https://www.w3.org/TR/speech-synthesis/
// Example: <speak>Hello there.</speak>
func SynthesizeSSML(w io.Writer, ssml, outputFile string) error {
ctx := context.Background()
client, err := texttospeech.NewClient(ctx)
if err != nil {
return err
}
req := texttospeechpb.SynthesizeSpeechRequest{
Input: &texttospeechpb.SynthesisInput{
InputSource: &texttospeechpb.SynthesisInput_Ssml{Ssml: 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
}
Java
/**
* Demonstrates using the Text to Speech client to synthesize text or ssml.
*
* <p>Note: ssml must be well-formed according to: (https://www.w3.org/TR/speech-synthesis/
* Example: <speak>Hello there.</speak>
*
* @param ssml the ssml document to be synthesized. (e.g., "<?xml...")
* @throws Exception on TextToSpeechClient Errors.
*/
public static void synthesizeSsml(String ssml) throws Exception {
// Instantiates a client
try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
// Set the ssml input to be synthesized
SynthesisInput input = SynthesisInput.newBuilder().setSsml(ssml).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\"");
}
}
}Node.js
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 ssml = '<speak>Hello there.</speak>';
// const outputFile = 'Local path to save audio file to, e.g. output.mp3';
const request = {
input: {ssml: ssml},
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}`);PHP
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;
/** Uncomment and populate these variables in your code */
// $ssml = 'SSML to synthesize';
// create client object
$client = new TextToSpeechClient();
$input_text = (new SynthesisInput())
->setSsml($ssml);
// note: the voice can also be specified by name
// names of voices can be retrieved with $client->listVoices()
$voice = (new VoiceSelectionParams())
->setLanguageCode('en-US')
->setSsmlGender(SsmlVoiceGender::FEMALE);
$audioConfig = (new AudioConfig())
->setAudioEncoding(AudioEncoding::MP3);
$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);
$client->close();Python
def synthesize_ssml(ssml):
"""Synthesizes speech from the input string of ssml.
Note: ssml must be well-formed according to:
https://www.w3.org/TR/speech-synthesis/
Example: <speak>Hello there.</speak>
"""
from google.cloud import texttospeech
client = texttospeech.TextToSpeechClient()
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",
name="en-US-Standard-C",
ssml_gender=texttospeech.SsmlVoiceGender.FEMALE,
)
audio_config = texttospeech.AudioConfig(
audio_encoding=texttospeech.AudioEncoding.MP3
)
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:
out.write(response.audio_content)
print('Audio content written to file "output.mp3"')
Ruby
require "google/cloud/text_to_speech"
client = Google::Cloud::TextToSpeech.text_to_speech
input_text = { ssml: ssml }
# Note: the voice can also be specified by name.
# Names of voices can be retrieved with client.list_voices
voice = {
language_code: "en-US",
ssml_gender: "FEMALE"
}
audio_config = { audio_encoding: "MP3" }
response = client.synthesize_speech(
input: input_text,
voice: voice,
audio_config: audio_config
)
# The response's audio_content is binary.
File.open output_file, "wb" do |file|
# Write the response to the output file.
file.write response.audio_content
end
puts "Audio content written to file '#{output_file}'"