Re: ok google doesn't resond with a voice
Welcome to Android Central! Only certain kinds of responses will be spoken to you. Basically, if you see a customized search result window at the top of your search results, then you should hear the voice. But if it's just a generic search result, then it won't be read to you.
A quick test is to say Ok Google, then "What's the weather?" If you see the customized result at the top, with the 5 day forecast, then you should hear the voice tell you what the current temperature is. But if you see a more generic result (which might occur for a more remote or uncommon weather location), then it won't be read out.