1

Is there a way to get the Google Cloud Speech API to recognize letters and letter sounds?

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.

Similarly, is there a way to identify specific letter sounds like: "oo", "ew", "k" (as in cat) or "s" (as in circle).

Philip Constantinou
  • 95
  • 2
  • 8

1 Answers1

4

It seems to already do a reasonable job at least in some cases. E.g., when I spell out "cee ay tee" it recognizes "c a t". It is also possible to provide "word hints" as described in this post:

Google Cloud Speech API word Hints

Supplying a list of single-letter "words" as hints, i.e.

phrases = ['a', 'b', 'c', 'd' ... ]

appears to give improved results in this area.

padd13ear
  • 183
  • 4