Before you begin using speech recognition, be sure to place your mouse pointer in a location that can accept text, such as a bullet list or other text area on a slide. To improve accuracy, talk in a consistent, even tone. Speaking too slowly or quickly can decrease the level of recognition. Also, don't stop and start. Pauses and gaps make it harder to recognize your speech.
To dictate text using the speech recognition engine, follow these steps:
Click the Microphone button on the Language bar to turn on the microphone. Alternatively, you can say the word “microphone” to toggle the microphone on and off.
Click the Dictation button on the Language bar (or say “dictation”) to activate speech recognition. ...