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Cloud Speech: Node.js Client

release level npm version

Cloud Speech Client Library for Node.js

A comprehensive list of changes in each version may be found in the CHANGELOG.

Read more about the client libraries for Cloud APIs, including the older Google APIs Client Libraries, in Client Libraries Explained.

Table of contents:

Quickstart

Before you begin

  1. Select or create a Cloud Platform project.
  2. Enable the Cloud Speech API.
  3. Set up authentication with a service account so you can access the API from your local workstation.

Installing the client library

npm install @google-cloud/speech

Using the client library

// Imports the Google Cloud client library
const speech = require('@google-cloud/speech');

// Creates a client
const client = new speech.SpeechClient();

async function quickstart() {
  // The path to the remote LINEAR16 file
  const gcsUri = 'gs://cloud-samples-data/speech/brooklyn_bridge.raw';

  // The audio file's encoding, sample rate in hertz, and BCP-47 language code
  const audio = {
    uri: gcsUri,
  };
  const config = {
    encoding: 'LINEAR16',
    sampleRateHertz: 16000,
    languageCode: 'en-US',
  };
  const request = {
    audio: audio,
    config: config,
  };

  // Detects speech in the audio file
  const [response] = await client.recognize(request);
  const transcription = response.results
    .map(result => result.alternatives[0].transcript)
    .join('\n');
  console.log(`Transcription: ${transcription}`);
}
quickstart();

Samples

Samples are in the samples/ directory. Each sample's README.md has instructions for running its sample.

Sample Source Code Try it
Adaptation.create_custom_class source code Open in Cloud Shell
Adaptation.create_phrase_set source code Open in Cloud Shell
Adaptation.delete_custom_class source code Open in Cloud Shell
Adaptation.delete_phrase_set source code Open in Cloud Shell
Adaptation.get_custom_class source code Open in Cloud Shell
Adaptation.get_phrase_set source code Open in Cloud Shell
Adaptation.list_custom_classes source code Open in Cloud Shell
Adaptation.list_phrase_set source code Open in Cloud Shell
Adaptation.update_custom_class source code Open in Cloud Shell
Adaptation.update_phrase_set source code Open in Cloud Shell
Speech.long_running_recognize source code Open in Cloud Shell
Speech.recognize source code Open in Cloud Shell
Speech.streaming_recognize source code Open in Cloud Shell
Adaptation.create_custom_class source code Open in Cloud Shell
Adaptation.create_phrase_set source code Open in Cloud Shell
Adaptation.delete_custom_class source code Open in Cloud Shell
Adaptation.delete_phrase_set source code Open in Cloud Shell
Adaptation.get_custom_class source code Open in Cloud Shell
Adaptation.get_phrase_set source code Open in Cloud Shell
Adaptation.list_custom_classes source code Open in Cloud Shell
Adaptation.list_phrase_set source code Open in Cloud Shell
Adaptation.update_custom_class source code Open in Cloud Shell
Adaptation.update_phrase_set source code Open in Cloud Shell
Speech.long_running_recognize source code Open in Cloud Shell
Speech.recognize source code Open in Cloud Shell
Speech.streaming_recognize source code Open in Cloud Shell
Speech.batch_recognize source code Open in Cloud Shell
Speech.create_custom_class source code Open in Cloud Shell
Speech.create_phrase_set source code Open in Cloud Shell
Speech.create_recognizer source code Open in Cloud Shell
Speech.delete_custom_class source code Open in Cloud Shell
Speech.delete_phrase_set source code Open in Cloud Shell
Speech.delete_recognizer source code Open in Cloud Shell
Speech.get_config source code Open in Cloud Shell
Speech.get_custom_class source code Open in Cloud Shell
Speech.get_phrase_set source code Open in Cloud Shell
Speech.get_recognizer source code Open in Cloud Shell
Speech.list_custom_classes source code Open in Cloud Shell
Speech.list_phrase_sets source code Open in Cloud Shell
Speech.list_recognizers source code Open in Cloud Shell
Speech.recognize source code Open in Cloud Shell
Speech.streaming_recognize source code Open in Cloud Shell
Speech.undelete_custom_class source code Open in Cloud Shell
Speech.undelete_phrase_set source code Open in Cloud Shell
Speech.undelete_recognizer source code Open in Cloud Shell
Speech.update_config source code Open in Cloud Shell
Speech.update_custom_class source code Open in Cloud Shell
Speech.update_phrase_set source code Open in Cloud Shell
Speech.update_recognizer source code Open in Cloud Shell
Quickstart source code Open in Cloud Shell

The Cloud Speech Node.js Client API Reference documentation also contains samples.

Supported Node.js Versions

Our client libraries follow the Node.js release schedule. Libraries are compatible with all current active and maintenance versions of Node.js. If you are using an end-of-life version of Node.js, we recommend that you update as soon as possible to an actively supported LTS version.

Google's client libraries support legacy versions of Node.js runtimes on a best-efforts basis with the following warnings:

  • Legacy versions are not tested in continuous integration.
  • Some security patches and features cannot be backported.
  • Dependencies cannot be kept up-to-date.

Client libraries targeting some end-of-life versions of Node.js are available, and can be installed through npm dist-tags. The dist-tags follow the naming convention legacy-(version). For example, npm install @google-cloud/speech@legacy-8 installs client libraries for versions compatible with Node.js 8.

Versioning

This library follows Semantic Versioning.

This library is considered to be stable. The code surface will not change in backwards-incompatible ways unless absolutely necessary (e.g. because of critical security issues) or with an extensive deprecation period. Issues and requests against stable libraries are addressed with the highest priority.

More Information: Google Cloud Platform Launch Stages

Contributing

Contributions welcome! See the Contributing Guide.

Please note that this README.md, the samples/README.md, and a variety of configuration files in this repository (including .nycrc and tsconfig.json) are generated from a central template. To edit one of these files, make an edit to its templates in directory.

License

Apache Version 2.0

See LICENSE