go to touch
of the list.
Voice settings control different aspects of speech input and out-
put when you search by voice or use voice actions:
Language. The language you select here for Voice Search in-
put and output can be different from the language displayed
by your tablet.
Speech output. To turn on speech output only when you've got
a headset attached to your tablet, select Hands-free only.
Block offensive words. Check to ensure that search results
with offensive language are blocked.
Hotword detection. When this is checked, you can say "Google"
when viewing the Google Now screen rather than touching the
Microphone icon to initiate a voice search or action.
Download offline speech recognition. Check to select one or
more additional languages for speech recognition when you
don't have a network connection.
IMPORTANT: To detect when you say "Google" to launch
Voice Search or Voice Actions, Google analyzes sound
picked up by your tablet's microphone in intervals of a few
seconds or less. The sound is immediately discarded after
analysis and is not stored on the device or sent to Google.
Tablet search settings let you select which apps on your tablet
are included in Google searches.
NEXUS 7 GUIDEBOOK
Menu > Settings > Google Now and look at the end
USE GOOGLE NOW & SEARCH