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An idiomatic C++ client library for the Cloud Text-to-Speech API, a service to synthesize natural-sounding speech by applying powerful neural network models.
While this library is GA, please note Google Cloud C++ client libraries do not follow Semantic Versioning.
QuickstartThe following shows the code that you'll run in the google/cloud/texttospeech/quickstart/ directory, which should give you a taste of the Cloud Text-to-Speech API C++ client library API.
#include "google/cloud/texttospeech/v1/text_to_speech_client.h"
#include <iostream>
auto constexpr kText = R"""(
Four score and seven years ago our fathers brought forth on this
continent, a new nation, conceived in Liberty, and dedicated to
the proposition that all men are created equal.)""";
int main(int argc, char* argv[]) try {
if (argc != 1) {
std::cerr << "Usage: " << argv[0] << "\n";
return 1;
}
namespace texttospeech = ::google::cloud::texttospeech_v1;
auto client = texttospeech::TextToSpeechClient(
texttospeech::MakeTextToSpeechConnection());
google::cloud::texttospeech::v1::SynthesisInput input;
input.set_text(kText);
google::cloud::texttospeech::v1::VoiceSelectionParams voice;
voice.set_language_code("en-US");
google::cloud::texttospeech::v1::AudioConfig audio;
audio.set_audio_encoding(google::cloud::texttospeech::v1::LINEAR16);
auto response = client.SynthesizeSpeech(input, voice, audio);
if (!response) throw std::move(response).status();
// Normally one would play the results (response->audio_content()) over some
// audio device. For this quickstart, we just print some information.
auto constexpr kWavHeaderSize = 48;
auto constexpr kBytesPerSample = 2; // we asked for LINEAR16
auto const sample_count =
(response->audio_content().size() - kWavHeaderSize) / kBytesPerSample;
std::cout << "The audio has " << sample_count << " samples\n";
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
The main class in this library is texttospeech_v1::TextToSpeechClient. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock texttospeech_v1::TextToSpeechClient when testing your application.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-08-14 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["This webpage provides documentation for the Cloud Text-to-Speech API C++ client library, which is currently in General Availability (GA) status, but does not follow Semantic Versioning."],["The library facilitates synthesizing natural-sounding speech using powerful neural network models, as exemplified in the provided quickstart code."],["The `texttospeech_v1::TextToSpeechClient` class is the primary interface for interacting with the Text-to-Speech API, with all RPCs exposed as its member functions."],["The documentation includes different previous versions, with version `2.37.0-rc` as the most recent, and `2.11.0` being the oldest version provided in this context."],["The documentation has information on how to handle errors, how to override default endpoints, authentication credentials, retry policies, and how to use environment variables."]]],[]]
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