Samsung Galaxy S III User Manual page 339

Accessibility Option
Sound Balance
Mono audio
Turn off all sounds
Flash notification
Google subtitles (CC)
Samsung subtitles (CC)
Press and hold delay
Access Accessibility Options
1. From home, tap Apps
2. Set accessibility settings.
 Your accessibility settings are applied and saved.
Settings
Description
Control the signal sent to the left and right when using
earphones.
Enable stereo audio to be compressed into a single mono
audio stream for use with a single earphone.
Mute every sound made by the phone.
Set your phone blink the Camera flash for notifications.
Display subtitles (when available).
Display subtitles (when available).
Choose how long your phone waits when you hold your
finger on the screen, before continuing with the tap and
hold action.
> Settings > My device tab > Accessibility.
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