Azure AI Speech

const fs = require('fs');
const sdk = require('microsoft-cognitiveservices-speech-sdk');

// This example requires environment variables named "SPEECH_KEY" and "SPEECH_REGION"
const speechConfig = sdk.SpeechConfig.fromSubscription(
  process.env.SPEECH_KEY,
  process.env.SPEECH_REGION
);
speechConfig.speechRecognitionLanguage = 'en-US';

function fromFile() {
  let audioConfig = sdk.AudioConfig.fromWavFileInput(
    fs.readFileSync('./samplevoice.wav')
  );
  let speechRecognizer = new sdk.SpeechRecognizer(speechConfig, audioConfig);

  speechRecognizer.recognizeOnceAsync((result) => {
    switch (result.reason) {
      case sdk.ResultReason.RecognizedSpeech:
        console.log(`RECOGNIZED: Text=${result.text}`);
        break;
      case sdk.ResultReason.NoMatch:
        console.log('NOMATCH: Speech could not be recognized.');
        break;
      case sdk.ResultReason.Canceled:
        const cancellation = sdk.CancellationDetails.fromResult(result);
        console.log(`CANCELED: Reason=${cancellation.reason}`);

        if (cancellation.reason == sdk.CancellationReason.Error) {
          console.log(`CANCELED: ErrorCode=${cancellation.ErrorCode}`);
          console.log(`CANCELED: ErrorDetails=${cancellation.errorDetails}`);
          console.log(
            'CANCELED: Did you set the speech resource key and region values?'
          );
        }
        break;
    }
    speechRecognizer.close();
  });
}
fromFile();