Speech Recognition
Speech recognition is a computer application that lets people control a computer by speaking to it. In other words, rather than using a keyboard and mouse to communicate with the computer, the user speaks commands into a microphone that is connected to a computer. By speaking into the microphone, users can do two things. First, they can tell their computers to execute some commands such as open a document, save changes, delete a paragraph, even move the cursor, all without touching a key. Second, users can write using speech recognition in conjunction with a standard word processing program. When users speak into the microphone their words can appear on a computer screen in a word processing format, ready for revision and editing.
Although many modern speech-recognition programs and devices voice-enable their systems, the terms voice recognition and speech recognition are not synonymous. While both use technology to capture the spoken word, voice recognition and speech recognition have different goals, and run different technologies. Speech recognition is continuous, natural language processing. In contrast, voice recognition uses recordings to determine an individual's identity, a twist on today's social security number and fingerprint.
There are two kinds of speech recognition software now available; discrete speech and continuous speech. The older technology, discrete speech recognition, requires the user to speak one word at a time. A newer technology, continuous speech recognition, allows the user to dictate by speaking (at a more or less normal rate). As the user speaks, the software puts one or more words on the screen by matching the sound input with the information it has in the user's voice...
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...ms and software for their homes and actually speak to their computers. Although it is still rather new for computers to be able to understand and transcribe the imprecise speech of humans, it is possible and systems are only continuing to improve.
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Bates, Regis J and Gregory, Donald W. Voice and Data Communications Handbook.
Capron, H. L. Computers, Tools for an Information Age, Upper Saddle River: Addison Wesley, 2002.
Newman, Dan. The Dragon Naturally Speaking Guide, Berkeley: Waveside Publishing, 2000.
Newman, Dan. Talk to Your Computer: Speech Recognition Made Easy, Berkely: Waveside Publishing, 2000.
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Jurafsky, D. & Martin, J. H. (2009), Speech and Language Processing: International Version: an Introduction to Natural Language Processing, Computational Linguistics, and Speech Recognition, 2nd ed, Pearson Education Inc, Upper Saddle River, New Jersey.
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