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Speech Recognition Essay

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Speech recognition (also known as automatic speech recognition or computer speech recognition) converts spoken words to text. The term "voice recognition" is sometimes used to refer to recognition systems that must be trained to a particular speaker—as is the case for most desktop recognition software. Recognizing the speaker can simplify the task of translating speech. Speech recognition is a broader solution which refers to technology that can recognize speech without being targeted at single speaker—such as acall system that can recognize arbitrary voices. Speech recognition applications include voice user interfaces such as voice dialing (e.g., "Call home"), call routing (e.g., "I would like to make a collect call"), domotic …show more content…

This is achieved with the Texas Instruments DMD HD2 chip, which is found in some more expensive projectors. A new feature due out in 2004 sometime is the xHD3 technology. It will take the single chip technology to even greater heights by adding a new rear coating to the mirrors and eliminating more of the latent brightness when in the off position. Another upcoming technology is called Sequential Color Recapture (SCR) where DLP systems will replace the traditional color wheel with essentially, a Spiral of "Archimedes" RGB color pattern. This new technology has been mathematically projected to rival the current quality of 3-modulator DLP Cinema systems. DLP is the future of Home Cinema Quality projection. However, due to the high cost of manufacturing the chips, LCD and CRt are more viable options on the cost front. The potential drawback of this single-chip DLP technology is that in any given instant, the picture on the screen is not the total image, but is instead rapidly alternating between images consisting of the individual red, green, and blue colors. Thus the eye and the brain play the last critical role in making single chip DLP projectors work, by combining or averaging or integrating the picture, so that the viewer perceives the desired image and not the rapidly flashing momentary components of the image. A problem with DLP can also be light leakage around the mirrors ending up with a halo effect on some scenes. This has been addressed with the new

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