Function asyncRecognize

speech/recognize.js:173–225

(
  filename,
  encoding,
  sampleRateHertz,
  languageCode
)

}

async function asyncRecognize(
  filename,
  encoding,
  sampleRateHertz,
  languageCode
) {
  // [START speech_transcribe_async]
  // Imports the Google Cloud client library
  const speech = require('@google-cloud/speech');
  const fs = require('fs');

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

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const filename = 'Local path to audio file, e.g. /path/to/audio.raw';
  // const encoding = 'Encoding of the audio file, e.g. LINEAR16';
  // const sampleRateHertz = 16000;
  // const languageCode = 'BCP-47 language code, e.g. en-US';

  const config = {
    encoding: encoding,
    sampleRateHertz: sampleRateHertz,
    languageCode: languageCode,
  };

  /**
   * Note that transcription is limited to 60 seconds audio.
   * Use a GCS file for audio longer than 1 minute.
   */
  const audio = {
    content: fs.readFileSync(filename).toString('base64'),
  };

  const request = {
    config: config,
    audio: audio,
  };

  // Detects speech in the audio file. This creates a recognition job that you
  // can wait for now, or get its result later.
  const [operation] = await client.longRunningRecognize(request);

  // Get a Promise representation of the final result of the job
  const [response] = await operation.promise();
  const transcription = response.results
    .map(result => result.alternatives[0].transcript)
    .join('\n');
  console.log(`Transcription: ${transcription}`);
  // [END speech_transcribe_async]
}

async function asyncRecognizeGCS(
  gcsUri,