Change TalkBack settings
To modify Talkback settings, go to Settings > Accessibility > Talk-
Back, then double-tap Settings in the top right corner.
When to speak
Speech volume. You can set this as a percentage of media
Use pitch changes. Check to speak keyboard feedback at a
Speak when screen is off. Check to turn on spoken feedback
when the screen is off.
Sound feedback. Check to control navigation sounds.
Sound volume. Available when Sound feedback is checked.
You can set this as a percentage of media volume.
Launch "Explore by touch" tutorial.
Manage shortcut gestures. Allows you to assign the opera-
tions that different gestures trigger.
Control speed of Text-to-Speech
To control the speed of Talkback's speech, go to Settings > Ac-
cessibility > Text-to-speech output > Speech rate.
Manage TalkBack volume
To change the volume settings for Talkback, go to Settings >
Sound > Volumes. use the slider for Music, video, games, & other
media to change the volume level.
Nexus 7 Guidebook