Speech recognition covers a number of different approaches to creating software which enable computers to recognize natural human speech. Though related in concept to computers that speak to you, technology that lets you speak to your computer works quite differently. There are two broad tasks that speech recognition programs enable you to accomplish: dictating text to your computer, and controlling your computer by speaking commands instead of typing them. These two types of tasks are referred to as dictation and command and control. While a few programs focus exclusively on command and control, most enable you to carry out both tasks. Dictation software lets you to talk to your computer and turn your talk into text. You can then edit, print, and save that text like any other computer document. Dictation programs don't really understand you. If you started to tell a dictation program about your problems with your boss or the pain in your tooth, it wouldn't react any differently than if you read it part numbers from a ball bearing catalog. Correcting the program and teaching it your special speech patterns and vocabulary takes a period of interactive work, typically about two to three weeks. You don't have to put in this much work, but as with anything in life, you get out what you put in. The more time you invest training your program, the more accurate it will become in transcribing your voice. Accuracy varies depending on your computer system, software and the type of work you dictate. Most people can achieve an accuracy rate between 95 and 98 percent. Instead of moving your mouse, you speak to your computer, telling it to open menus and choose commands. You can edit and format by voice, cut and past paste, open programs, close windows, create e-mail, and surf the web. |
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