Q. What role does interactivity play in the success of speech-based information systems?

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Q. What distinguishes telephone-based speech systems from other systems?

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Q. What advantage does tone dialing offer over speaking an extension number?

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Q. Why do speech-based word processors and computers using speech input exist despite limitations?

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Q. How do sophisticated speech systems handle errors in user input?

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Q. What is a major challenge associated with speech synthesis?

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Q. Why is synthesized speech often perceived as imperfect?

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Q. For which group of users has synthesized speech been particularly successful?

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Q. What do screen readers do in the context of synthesized speech?

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Q. In what scenario is speech synthesis most challenging as a communication tool?

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Q. How can speech synthesis enhance applications where the user's visual attention is focused elsewhere?

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Q. What is the benefit of using fixed pre-recorded messages in the interface?

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Q. How can recordings of users' speech be useful in collaborative applications?

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Q. What happens when you simply play an audio recording faster?

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Q. How can digital signal processing techniques address the issue of accelerated speech?

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Q. In what scenario can accelerated playback of speech recordings be beneficial?

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Q. Why can non-speech sounds be assimilated more quickly than speech?

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Q. What advantage does non-speech sound have in terms of auditory adaptation?

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Q. How can non-speech sounds provide status information in interactive systems?

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Q. What is the primary advantage of using non-speech sounds that occur naturally in the world?

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