The utility of speech input in user-computer interfaces

摘要: This paper focuses on two commonly-made claims about the utility of speech input: (1) It is faster than typed input; and (2) it also increases user productivity by providing an additional response channel. These are investigated, both through a review research, empirical evaluation input. The research supports claims. Further, suggests that input will be more beneficial when users engaged in multiple tasks mapped onto user-response modalities, used characterized short transactions highly interactive nature. study evaluated context VLSI chip design package, compared to typed, full-word input, single keypresses, mouse clicks. Results supported benefits over commands, lesser extent, keypresses. For restricted set commands could accomplished with clicks, clicks were equally efficient. results interpreted terms general “ease vs expressiveness” guideline for assigning modalities interface.