Cloud Text-to-Speech API C++ Client Library

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.

Quickstart

The 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; }

Main classes

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.

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