Speech Recognition

1085 words - 4 pages

Speech recognition is the process by which the computer uses special software that enables the computer to take in what is said by a specific human or humans and be able to translate it in computer language so that the computer could now act on the instructions given to it. Just like clicking with your mouse, typing on your keyboard, or pressing a key on the phone keypad provides input to an application, speech recognition allows you to provide input by talking. Speech is basically just another user interface, an input method, like using a mouse or a keyboard. According to Webster Speech recognition is simply, it “converts spoken words to text”. If you are not familiar with the term speech recognition it goes by other terms such as automatic speech recognition, computer speech recognition and speech to text. Speech recognition works like this, first you speak into a microphone that is connected to a computer with the speak recognition program running. Some speech recognition software’s just to name a few are VoiceAttack (used in gaming), Trigamtech(features for medical users) and WRSToolkit(for dictionary and grammar). While saying what you would like the computer to do for you, as you speak you would see the words as you say them pop up on your screen. Information that I came upon while doing my research stated that “You can speak at your normal speaking speed (about 120 words per minute) and the computer "guesses" using mathematical algorithms what word you mean in that context from what it knows about the English language.” Using speech recognition programs on computers are not going to give you for certain the exact information that you asked for but it works and tries to understand what it has been told and in the end gives you back probabilities to what it thinks you were asking for.

Before speech recognition on computers could be possible VoIP (Voice over Internet Protocol) had been first developed fully. Speech recognition has different starting points and evolutions. It is assumed that the technology began with Alexander Graham Bell’s inventions in the 1870s. Bell and his cousins invented a recording device and then later so did Thomas Edison. Thomas Edison invented a similar device which he called “Ediphone”. These machines recorded dictation of letters for a secretary to type. This was a step in the direction of a machine that could automatically transcribe the sound of a human voice. Since the time of Bell and Edison various technologies have emerged that has moved speech recognition along. In the 1990s The Cambridge University invented the most widely used software for automatic speech recognition research. The goal of many researchers is to develop a machine that performs and responds like a human being. For now, the technology is used in providing telephone support, writing medical reports, answering financial questions and in a variety of tasks requiring a human to machine interface, such as providing updated travel...

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