How “ok google” technology is implemented [closed]

manpreet Best Answer 2 years ago

I've read a little about Speech/voice recognition, and I wonder how does it work. For instance, "ok Google" on android and similar cases ?

I would like to know how it works (how to differentiate and analyze a word in a continuous feed, to find of it's a keyword). If I think about it as a continuous text feed, one way of doing it would be Isolating a given length of the feed, then find a keyword. An audio feed is a little bit harder to understand, as there is no pure silence between words (as said) and isolating a given length doesn't guarantee cutting a keyword at the beginning or at the end of the selected sub-feed. How does it work?

And finally, if you guys know some libs (C/C++ if possible) which are capable of doing it, I'll be glad to implement a "keyword spotter".

Thank you.