04-11-2013, 12:29 AM
Introduction- During the past few years, the computer industry has seen speech technologies arrive with a flash and quietly fold without a whimper. This speech processing area has become a feature which is under levels of researches. Speech recognition systems have been around for over twenty years, but the early systems were very expensive and required powerful computers to run. During recent years, manufacturers have reduced the prices of the speech recognition systems. The technology behind speech output has also changed. Early systems used discrete speech, i.e. the user had to speak one word at a time, with a short pause between words. Over the past few years most systems have used continuous speech, allowing the user to speak in a more natural way. The main commercial continuous speech systems currently available for the PC are Dragon NaturallySpeaking and IBM ViaVoice. With the advancement of technology today many research projects have progressed with developing applications that use speech technology to boost application user‟s experience. As pioneers IBM, Microsoft and Sun Microsystems have performed considerable amount of work on the context. Microsoft boasted the ability to control Windows by voice commands and have embedded the capability of dictating such like Microsoft Word application. With kind of those promising achievements when it‟s coming to present day apart from the Microsoft and Sun Microsystems some other developers also have released specific speech APIs in order to help application developers.
Purpose- Internet has brought about an incredible improvement in human access to knowledge and information. Voice browsers allow people to access the Web using speech synthesis, pre-recorded audio, and speech recognition. This can be supplemented by keypads and small displays. Voice may also be offered as an adjunct to conventional desktop browsers with high resolution graphical displays, providing an accessible alternative to using the keyboard or screen, for instance in automobiles where hands/eyes free operation is essential. Voice interaction can escape the physical limitations on keypads and displays as mobile devices become ever smaller. The browser will have an integrated text extraction engine that inspects the content of the page to construct a structured representation. The internal nodes of the structure represent various levels of abstraction of the content. This helps in easy and flexible navigation of the page so as to rapidly home into objects of interest. Finally, the browser is integrated to an automatic Text-To-Speech transliteration engine that outputs the selected text in the form of speech.
Abstract-Voice based web browser is a solution basically for recognizing and interpreting voice. System will be capable of converting an acoustic signal, captured by a microphone to a set of words. Emphasis is that this acoustic wave represents a human speech done. The recognized words which are the results can be used for applications as commands, data entries or could be served as the input to further linguistic processing in order to achieve done in language and produce an output that can be used for other applications extensively. System consists of two main component such that one component is meant for processing acoustic signal captured by the microphone while other component is meant to interpret the processed signal and map the signal to words. speech understanding. Hence the end product will be capable of tracking the human speech.
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