FS: Vintage VCP200 Speaker-Independent Word Recognizer IC

I have a limited number of these in stock if anyone is interested.

The VCP200 is a speech recognition IC that understands a limited number of spoken commands, regardless of the person speaking. It identifies commands by breaking the words into broad phoneme classes, and then recognizing predetermined strings of these classes. The VCP200 performs a spectral analysis of the incoming speech signal over the range of 300 Hz to 5500 Hz, determines the membership of phoneme classes based on spectral shape, forms strings of these classes, and compares the strings to the stored strings of selected commands. The VCP200 recognizes the selected commands, regardless of who speaks them, in real time.