Commands:
  sync <filename>    Detects speech in an audio file.
  async <filename>   Creates a job to detect speech in an audio file, and waits for the job to complete.
  stream <filename>  Detects speech in an audio file by streaming it to the Speech API.
  listen             Detects speech in a microphone input stream.

Options:
  --help  Show help                                                    [boolean]

Examples:
  node recognize.js sync ./resources/audio.raw
  node recognize.js async ./resources/audio.raw
  node recognize.js stream ./resources/audio.raw
  node recognize.js listen

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