[Noisebridge-discuss] Fwd: What to do with these features?

Adam Munich adam at aperture.systems
Sun Apr 12 07:19:29 UTC 2015


I'm trying to reverse engineer the "OK google" functionality implemented in
my phone.


​
What do you suppose I do with those feature / data sets? Since "OK google"
responds to my voice independently of the rate of speech, methinks they are
using a combination of regression analysis and discrete time warping.

But, it's seemingly both speaker and pitch independent too, so there must
be something else going on. There's no way they implemented a full Hidden
Markov Model inside the phone's DSP, (it wouldn't make sense for just one
hotword).

Thoughts?



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