Google Docs now allows for voice typing. What a great feature! No more typing. When in your Google Doc, click on TOOLS, then VOICE TYPING. It's a good idea to talk at a slower pace and enunciate each word clearly.
Once the VOICE TYPING feature is activated, a floating microphone box will appear off to the side of your Google Doc. Simply click on the microphone image to enable the voice recognition. You must click it again to toggle the microphone image off.
You can use the keyboard shortcut of Ctrl/Shift/S or Command/Shift S (Mac) to launch the voice typing feature.