title: How to get Google Cloud Speech (voice-to-text) to recognize letters and sounds
body: <p>Is there a way to get the <a href="https://cloud.google.com/speech-to-text/" rel="nofollow noreferrer">Google Cloud Speech API</a> to recognize letters and letter sounds?</p>
  
  <p>As an example use case, if I wanted to build a spelling game where a voice would say, "Spell restaurant" and the recognizer would listen for each letter and recognize them as they come through.</p>
  
  <p>Similarly, is there a way to identify specific letter sounds like: "oo", "ew", "k" (as in cat) or "s" (as in circle).</p>