knows plenty about you, for a while there it was particularly interested in your pronunciation of words. If you opted into rsonal Voice Recognition almost four years ago, would use those words to build “a speech model specifically for you,” according to the official blogpost on the matter. You could then access this data from your account dashboard.
According to Droidfe, the feature was actually laid to rest some time ago—no one really noticed it. The new Search update for Android officially retired the feature, possibly because a new voice recognition engine has been implemented. On its support page, said that your old voice recognition data has been removed from the Account dashboard is no longer associated with your account.