Design of Speech-based Devices: A Practical Guide by Ian Pitt PDF

By Ian Pitt

ISBN-10: 144710093X

ISBN-13: 9781447100935

ISBN-10: 1447110897

ISBN-13: 9781447110897

Developments in know-how have made it attainable for speech output for use in preference to the extra traditional visible interface in either household and advertisement units. Speech can be utilized in events the place visible realization is occupied, reminiscent of while using a vehicle, or the place a role is advanced and standard visible interfaces aren't potent, equivalent to programming a video recorder. Speech is also hired in expert variations for visually impaired people.

However, using speech has no longer been universally winning, most likely as the speech interplay is poorly designed. Speech is essentially assorted from textual content, and many the issues may perhaps come up as a result of simplified text-to-speech conversion. Design of Speech-based Devices considers the issues linked to speech interplay, and gives sensible solutions.

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Extra info for Design of Speech-based Devices: A Practical Guide

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Following this, each successive call for More Information will provide details of one of the files that could not be copied. These messages will take the form: couldn't copy to If the user continues pressing the More Information key, the program will return to the start of the list of uncopied filenames and cycle through it again, using prosody in the same way as before to signal the start and end of the list and to give the listener an approximate idea of the length of the list and the position of the current item within it.

One of the implications is that the designer must think very hard before adding another auditory indicator to a display. 2 User Selection versus Designer Direction The greatest advance in the usability of computers is due to the graphical user interface (GUn. There are a number of aspects of such interfaces that make them easier to use, quite aside from their attractive appearance (there are many books on the design ofGUIs, but Tognazzini (1992) gives a good insight into some of the more general aspects).

However, in order to make a response relevant we must ensure that while it contains all the required information, it does not contain unnecessary information. This, too, may be difficult to judge, but we can set some limits by ensuring that responses contain only one item of new information, and by taking into account human memory span. Finally, the designer must recognize that no matter how well a speechbased system is designed, there will be times when communication breaks down. Therefore it is essential to provide mechanisms that allow the user to obtain clarification.

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Design of Speech-based Devices: A Practical Guide by Ian Pitt

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