What is dictation-based versus grammar-based recognition?
Dictation-based speech recognition is the ability to speak free-form input to your computer. You say words and phrases in a free-form manner, and the speech engine will put the text of what you said on the screen. However, you cannot say absolutely everything. The speech engine must be able to convert what you’ve said into a word it knows about. Dictation vocabularies are extremely large, so that they can support free-form speech. These engines also require training.
