Recognize a synchronization request

Loads the audio file from the disk into the request.

Code sample

C++

To learn how to install and use the client library for Speech-to-Text, see Speech-to-Text client libraries.

To authenticate to Speech-to-Text, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

// Create a Speech client with the default configuration
auto client = speech::SpeechClient(speech::MakeSpeechConnection());
// Parse command line arguments.
auto const args = ParseArguments(argc, argv);
speech::v1::RecognizeRequest request;
*request.mutable_config() = args.config;
  // Load the audio file from disk into the request.
  auto content =
      std::string{std::istreambuf_iterator<char>(
                      std::ifstream(args.path, std::ios::binary).rdbuf()),
                  {}};
  request.mutable_audio()->mutable_content()->assign(std::move(content));
// Send audio content using Recognize().
auto response = client.Recognize(request);
if (!response) throw std::move(response).status();
// Dump the transcript of all the results.
for (auto const& result : response->results()) {
  for (auto const& alternative : result.alternatives()) {
    std::cout << alternative.confidence() << "\t" << alternative.transcript()
              << "\n";
  }
}

What's next

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