@google-cloud/speech

Google Cloud Speech API: Node.js Samples

The Cloud Speech API enables easy integration of Google speech recognition technologies into developer applications. Send audio and receive a text transcription from the Cloud Speech API service.

Table of Contents

• Before you begin
• Samples
  • Speech Recognition
  • Speech Recognition v1p1beta1

Before you begin

Before running the samples, make sure you've followed the steps in the Before you begin section of the client library's README.

Samples

Speech Recognition

View the source code.

Usage: node recognize.js --help

recognize.js <command>

Commands:
  recognize.js sync <filename>           Detects speech in a local audio file.
  recognize.js sync-gcs <gcsUri>         Detects speech in an audio file located in a Google Cloud Storage bucket.
  recognize.js sync-words <filename>     Detects speech in a local audio file with word time offset.
  recognize.js async <filename>          Creates a job to detect speech in a local audio file, and waits for the job to
                                         complete.
  recognize.js async-gcs <gcsUri>        Creates a job to detect speech in an audio file located in a Google Cloud
                                         Storage bucket, and waits for the job to complete.
  recognize.js async-gcs-words <gcsUri>  Creates a job to detect speech  with word time offset in an audio file located
                                         in a Google Cloud Storage bucket, and waits for the job to complete.
  recognize.js stream <filename>         Detects speech in a local audio file by streaming it to the Speech API.
  recognize.js listen                    Detects speech in a microphone input stream. This command requires that you
                                         have SoX installed and available in your $PATH. See
                                         https://www.npmjs.com/package/node-record-lpcm16#dependencies

Options:
  --version              Show version number                                                                   [boolean]
  --encoding, -e                                                                          [string] [default: "LINEAR16"]
  --sampleRateHertz, -r                                                                        [number] [default: 16000]
  --languageCode, -l                                                                         [string] [default: "en-US"]
  --help                 Show help                                                                             [boolean]

Examples:
  node recognize.js sync ./resources/audio.raw -e LINEAR16 -r 16000
  node recognize.js async-gcs gs://gcs-test-data/vr.flac -e FLAC -r 16000
  node recognize.js stream ./resources/audio.raw  -e LINEAR16 -r 16000
  node recognize.js listen

For more information, see https://cloud.google.com/speech/docs

Speech Recognition v1p1beta1

View the source code.

Usage: node recognize.v1p1beta1.js --help

recognize.v1p1beta1.js <command>

Commands:
  recognize.v1p1beta1.js sync-model <filename> <model>    Detects speech in a local audio file using provided model.
  recognize.v1p1beta1.js sync-model-gcs <gcsUri> <model>  Detects speech in an audio file located in a Google Cloud
                                                          Storage bucket using provided model.

Options:
  --version              Show version number                                                                   [boolean]
  --encoding, -e                                                                          [string] [default: "LINEAR16"]
  --sampleRateHertz, -r                                                                        [number] [default: 16000]
  --languageCode, -l                                                                         [string] [default: "en-US"]
  --help                 Show help                                                                             [boolean]

Examples:
  node recognize.v1p1beta1.js sync-model ./resources/Google_Gnome.wav video -e LINEAR16 -r 16000
  node recognize.v1p1beta1.js sync-model-gcs gs://gcs-test-data/Google_Gnome.wav phone_call -e FLAC -r 16000

For more information, see https://cloud.google.com/speech/docs

betaFeatures v1p1beta1

View the source code.

Usage: node betaFeatures.js --help

betaFeatures.js <command>

Commands:
  betaFeatures.js sync-model <filename> <model>    Detects speech in a local audio file using provided model.
  betaFeatures.js sync-model-gcs <gcsUri> <model>  Detects speech in an audio file located in a Google Cloud
                                                          Storage bucket using provided model.

Options:
  --version              Show version number                                                                   [boolean]
  --encoding, -e                                                                          [string] [default: "LINEAR16"]
  --sampleRateHertz, -r                                                                        [number] [default: 16000]
  --languageCode, -l                                                                         [string] [default: "en-US"]
  --help                 Show help                                                                             [boolean]

Examples:
  node betaFeatures.js sync-model ./resources/Google_Gnome.wav video -e LINEAR16 -r 16000
  node betaFeatures.js sync-model-gcs gs://gcs-test-data/Google_Gnome.wav phone_call -e FLAC -r 16000

For more information, see https://cloud.google.com/speech/docs