每次与按钮、文件夹或任何其他用户界面元素交互时，您的Mac是否会大声朗读屏幕上的内容？这是因为名为VoiceOver的辅助功能。
VoiceOver 可以通过简单的键盘快捷键打开和关闭，无论是一直需要还是偶尔需要，都可以轻松使用。它也很容易被意外激活。
什么是 Mac 版 VoiceOver？
VoiceOver是一款屏幕阅读器，可帮助视障用户浏览操作系统、应用程序和互联网。它是macOS 内置的(accessibility tools that come built into macOS)众多辅助工具之一。
VoiceOver使用语音识别技术来朗读文本、识别和解释屏幕上的项目以及指示用户键入的内容。它可以与常规的键盘-鼠标-触控板设置或仅与键盘一起使用。
它还提供盲文(Braille)支持等功能，允许用户将盲文(Braille)显示器连接到MacBook、i Mac或Mac mini 并阅读盲文(Braille)文本。
如何为 Mac 启用 VoiceOver
在Mac上启用(Mac)VoiceOver的方法有多种，但最快的方法是同时按Command + F5键。当您执行此操作时，会立即出现VoiceOver(VoiceOver)对话框，并且预先录制的声音会通知您正在尝试激活VoiceOver。按 V(Press V)或选择使用 VoiceOver(Use VoiceOver)可立即激活VoiceOver。
如果您是VoiceOver(VoiceOver)新手，请按空格键(Space)或选择使用 VoiceOver(Use VoiceOver)来开始VoiceOver 快速入门(VoiceOver Quick Start)教程；该功能的学习曲线难度适中，因此我们强烈建议您仔细阅读。您将学习使用键盘选择屏幕上的项目、大声朗读文本、浏览网页等。
VoiceOver修饰键（或 VO 键）在使用该功能时发挥着(VoiceOver)重要作用。默认情况下，它绑定到Caps Lock和Control + Option键（选择最方便的一个），并且您必须根据您想要执行的操作将其与其他键一起使用。例如，您必须按VO + Space才能选择/激活项目。
如果您在使用VoiceOver时需要帮助，请按VO + H打开VoiceOver 帮助(VoiceOver Help)菜单，您可以在其中快速访问完整的VoiceOver 命令(VoiceOver Commands)列表。您还可以从同一菜单启动VoiceOver教程。(VoiceOver)如果您需要其他帮助，Apple 的 VoiceOver 用户指南(Apple’s VoiceOver User Guide)是一个很好的起点。
管理 VoiceOver 在 Mac 上的工作方式
Mac上有一个名为VoiceOver Utility 的(VoiceOver Utility)应用程序，它提供了多个选项来定制VoiceOver在Mac上的工作方式。要打开它，请调出启动板(Launchpad)并选择“其他”> “VoiceOver 实用程序”(VoiceOver Utility)。
在默认的“常规”(General)选项卡下，您可以确定在激活该功能时VoiceOver是否显示欢迎对话框、更改VoiceOver修改键（VO 键）以及导出VoiceOver首选项以便与其他Mac(Macs)一起使用。
根据您想要自定义的内容，您可以在VoiceOver 实用工具(VoiceOver Utility)侧边栏上切换类别。例如，选择“语音”(Speech)来更改VoiceOver语音的发音方式及其语速，或者选择“Web”来确定VoiceOver如何对网页元素进行分组、是否应朗读图像描述等。
在Mac上打开VoiceOver 的(VoiceOver)其他方法(Ways)
除了Command -F5(Command–F5)热键之外，启用VoiceOver 的(VoiceOver)另一种快速方法是使用 Siri(use Siri) — 只需说“嘿 Siri”(Hey Siri)（或选择Mac菜单栏上的(menu)Siri），然后输入短语“打开(Turn)VoiceOver”。
如果您的MacBook 或妙控键盘支持 Touch ID(MacBook or Magic Keyboard supports Touch ID)，请按住Command键并按Touch ID按钮三下以调用VoiceOver。
您还可以通过Mac上的System Preferences/Settings应用程序打开VoiceOver。只需(Just)打开Apple菜单并选择System Preferences/Settings > Accessibility > VoiceOver。然后，打开VoiceOver选项旁边的开关。
注意：如果您使用Mac OS X Lion或更早版本，请打开“系统偏好设置”(System Preferences)，转至Universal Access > Seeing，然后在“VoiceOver”下选择“打开” 。
最后，您可以通过“辅助(Accessibility)功能选项”(Options)菜单启用VoiceOver。Press Command + Option + F5，按Tab键直到突出显示VoiceOver复选框，然后按Space。
如何关闭 Mac 版 VoiceOver
您可以使用与打开 VoiceOver 相同的键盘快捷键（Command + F5）来禁用VoiceOver 。如果您在执行此操作时遇到困难，请选择以下任何替代方法：
- 选择屏幕左下角
VoiceOver文本框中的 X 图标。
- 启动 Siri(Initiate Siri)并说“关闭(Turn)VoiceOver”。
- 如果您的Mac使用Touch ID，请按住Command键并按Touch ID按钮三下。
- 打开System Preferences/Settings，选择辅助功能，然后关闭(Accessibility)VoiceOver旁边的开关。
- Press Command + Option + F5打开 Mac 的辅助功能(Accessibility Options)选项菜单并取消选中VoiceOver。
如果您不想使用VoiceOver ，但使用(VoiceOver)Command–F5热键无意中将其打开，则可以将其禁用。打开System Preferences/Settings应用，选择“键盘”(Keyboard)，然后转到Keyboard Shortcuts > Accessibility。然后，取消选中打开或关闭
VoiceOver选项。(Turn VoiceOver)
(Use Assistive Technology)在需要时
使用辅助技术
(VoiceOver)如果您（或任何其他有权使用该工具的人）有任何程度的视力丧失，VoiceOver是操作Mac的强大工具。(Mac)从VoiceOver 快速入门教程(VoiceOver Quick Start)开始(Start)，简要使用该功能，然后通过VoiceOver 实用工具(VoiceOver Utility)调整其工作方式。
顺便问一下，您知道有适用于 iPhone、iPod touch 和 iPad 的(VoiceOver for the iPhone, iPod touch, and iPad)iOS 版本VoiceOver 吗？
How to Turn Off (or On) VoiceOver in macOS
Does your Mac read aloud what’s on the screen each time уou interact with a button, folder, or any other user interface element? That’s because of an acceѕsibilіty feature called VoiceOver.
VoiceOver can be turned on and off with a simple keyboard shortcut, making it easy for those who need it all the time and those who only need it occasionally. It’s also easy to activate by accident.
What Is VoiceOver for Mac?
VoiceOver is a screen reader that helps visually impaired users navigate the operating system, applications, and the internet. It’s one of the many accessibility tools that come built into macOS.
VoiceOver uses speech recognition technology to read out text, identify and explain items on the screen, and dictate what the user types. It can be used with a regular keyboard-mouse-trackpad setup or just a keyboard.
It also offers features such as Braille support, allowing the user to connect a Braille display to their MacBook, iMac, or Mac mini and read text in Braille.
How to Enable VoiceOver for Mac
There are several ways to enable VoiceOver on a Mac, but the quickest is to press the Command + F5 keys simultaneously. A VoiceOver dialog box immediately appears when you do that, and a prerecorded voice notifies you’re attempting to activate VoiceOver. Press V or select Use VoiceOver to activate VoiceOver instantly.
If you’re new to VoiceOver, press Space or select Use VoiceOver instead to begin The VoiceOver Quick Start tutorial; the feature has a moderately difficult learning curve, so we strongly recommend you go through it. You’ll learn to select onscreen items with a keyboard, read text aloud, browse web pages, and so on.
The VoiceOver modifier key—or VO key—plays an important role while using the feature. It’s bound to both the Caps Lock and Control + Option keys by default (pick whichever is the most convenient), and you must use it alongside other keys depending on what you want to do. For example, you must press VO + Space to select/activate items.
If you need help while using VoiceOver, press VO + H to open the VoiceOver Help menu, where you can quickly access a full VoiceOver Commands list. You can also launch the VoiceOver tutorial from the same menu. If you need additional help, Apple’s VoiceOver User Guide is an excellent place to start.
Manage How VoiceOver Works on Mac
There’s an application on your Mac called VoiceOver Utility that provides multiple options to tailor how VoiceOver works on your Mac. To open it, bring up the Launchpad and select Other > VoiceOver Utility.
Under the default General tab, you can determine if VoiceOver displays the welcome dialog when you activate the feature, change the VoiceOver modifier—VO—key, and export your VoiceOver preferences for use with other Macs.
Depending on what you want to customize, you can switch categories on the VoiceOver Utility sidebar. For example, pick Speech to change how the VoiceOver voice sounds and its speaking rate, or Web to determine how VoiceOver groups web page elements, whether it should speak image descriptions, and so on.
Other Ways to Open VoiceOver on Mac
The Command–F5 hotkey aside, another quick method to enable VoiceOver is to use Siri—just say Hey Siri (or select Siri on the Mac’s menu bar) and follow with the phrase Turn on VoiceOver.
If your MacBook or Magic Keyboard supports Touch ID, hold down the Command key and press the Touch ID button three times to invoke VoiceOver.
You can also turn on VoiceOver via the System Preferences/Settings app on your Mac. Just open the Apple menu and select System Preferences/Settings > Accessibility > VoiceOver. Then, turn on the switch next to the VoiceOver option.
Note: If you use Mac OS X Lion or earlier, open System Preferences, go to Universal Access > Seeing, and select On under VoiceOver.
Finally, you can enable VoiceOver via the Accessibility Options menu. Press Command + Option + F5, press the Tab key until the VoiceOver checkbox is highlighted, and then press Space.
How to Turn Off VoiceOver for Mac
You can disable VoiceOver with the same keyboard shortcut you use to turn it on—Command + F5. If you have trouble doing that, pick any of the alternative methods below:
- Select the X icon on the VoiceOver text box in the lower-left corner of the screen.
- Initiate Siri and say Turn off VoiceOver.
- If your Mac uses Touch ID, hold down the Command key and press the Touch ID button three times.
- Open System Preferences/Settings, choose Accessibility, and turn off the switch next to VoiceOver.
- Press Command + Option + F5 to open your Mac’s Accessibility Options menu and uncheck VoiceOver.
If you do not want to use VoiceOver but turn it on unintentionally with the Command–F5 hotkey, you can disable it. Open the System Preferences/Settings app, select Keyboard, and go to Keyboard Shortcuts > Accessibility. Then, uncheck the Turn VoiceOver on or off option.
Use Assistive Technology When You Need To
VoiceOver is a powerful tool to operate your Mac if you—or any other person with access to it—have any degree of vision loss. Start with the VoiceOver Quick Start tutorial, briefly use the feature, and then adjust how it works through the VoiceOver Utility.
By the way, did you know there’s an iOS version of VoiceOver for the iPhone, iPod touch, and iPad?
