The software can cost several hundred dollars too. The speech-recognition engine Dragon Professional costs $300, as does VoiceCode. Caster and Aenea are free and open source.

Here's a closer look at the programming behind my animatronic mouth. Using Arduino, Python, and a few open-source libraries, I take a typed sentence and convert it into an animation sequence. # ...

Not programming APIs for speech recognition, but the replacement of the traditional text editor to produce programs. The companies, Serenade and Talon, have very different styles.