Whether you are unable to type due to an injury or disability or just prefer dictation to typing, there are several options for generating text by speaking into your computer or mobile device.
Google Docs
See an overview of using dictation in Gmail and Google docs in the following 6 minute video: Using Google's Voice Recognition for Gmails and Google Documents.
With a Google document open, select Tools > Voice Typing.
Select the microphone that appears on the left side of your document window.
When prompted for permission to use your microphone, respond yes. The microphone icon will turn red as you talk and Google Docs will start transcribing what you say.
Click on the microphone to turn voice recognition off.
Voice commands are also available for formatting documents. See Type with your voice.
Gmail
A Chrome extension is required to implement voice typing in Gmail. Install the Dictation for Gmail Chrome extension.
When composing a new email, a microphone will appear net to the Send button in the new email window. After selecting the microphone icon, you will get a message asking you to allow use of the microphone.
Microsoft Word, Excel & PowerPoint
In Word, Excel, PowerPoint and other Office applications, there is a built in dictation feature.
To access this feature on a PC, hold down the Windows key + H to open a dictation toolbar at the top of the screen. If this is the first time you have used it, a message with the following link appears: "To use dictation, go to Settings and turn on Online speech recognition." Click on the link, then toggle the speech recognition to On.
Return to your Word document and press the Windows key + H to activate the dictation feature. The same tool will work in Excel and PowerPoint.
To access this feature on a MAC, first click in the area you would like to enter text, then from the Edit menu select Start Dictation. This same approach is availalbe in Excel and Powerpoint.
Return to your Word document and press the Windows key + H to activate the dictation feature. The same tool will work in Excel and PowerPoint.
Windows
See How to Use Speech Recognition and Dictate Text on Windows 10 for information on getting started and commands to use to edit with Windows voice recognition.
MacOS
See Dictate messages and documents on Mac for information about setting up this feature.