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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 enables the synthesis of natural-sounding speech."],["The latest version is 2.37.0-rc, but the library does not follow Semantic Versioning, and the documentation also contains past versions back to 2.11.0."],["The `texttospeech_v1::TextToSpeechClient` class is the primary interface for accessing the API's functionalities, with other classes supporting configuration and testing."],["The library offers several ways to customize its behavior, including overriding the default endpoint, changing authentication credentials, and modifying retry policies."],["The quickstart code provides an example of using the Text-to-Speech API to synthesize speech from text input, demonstrating how to set input, voice, and audio configurations."]]],[]]
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