106can see a sample of the result in an adjacent panel. Note that you won’t see anychange unless you set the Window opacity to a value other than Default or Off.• Window opacity - Choose from a list of opacity settings for the window rectanglesurrounding the entire caption. This setting determines how much the areabehind the caption window shows through the window. A value of 100% blocksall of the content behind the window. As you move the highlight to eachsetting, you can see a sample of the result in an adjacent panel.Audio Guide settingsAudio Guide settings help users who are blind or visually impaired to configure thetext-to-speech reader, enabling them to operate their TV more easily. Audio Guideuses voice prompts that speak volume and channel changes, menu options, andsetting changes. Access Audio Guide settings from the Home screen by navigating toSettings > Accessibility, and then select from the following options in the Audio Guidesection:• Audio Guide – Turn Audio Guide on or off.• Speech rate – Select one of four speeds at which to hear spoken guideinformation: Slow, Normal, Fast, or Very Fast.• Volume – Select the volume at which to hear spoken guide information, relativeto the main TV volume.• Shortcut – Enable or disable the shortcut feature. When enabled (the default),pressing Þ four times in quick succession enables or disables the Audio Guide.