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TaleTUC: Text-to-Speech and Other Enhancements to Existing Bus Route Information Systems
Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, Department of Computer and Information Science.
2012 (English)MasteroppgaveStudent thesis
Abstract [en]

As smartphone sales increase, the demand for content for these devices also increases. Service providers that want to reach out to as many users as possible need to create smartphone applications that satisfy people that do not fall into the "normal user" category. People that require non-visual feedback, such as visually impaired persons, need output in form of auditory signals. Text-tospeech synthesis provides this functionality, giving the smartphone the ability to convey messages in the form of speech. This thesis describes TaleTUC: Text-to-speech, a proof of concept text-to-speech system for the domain of bus route information. The system uses a client-server architecture where the server converts text to computer-generated speech signals and provides playable audio files either directly to the smartphone, or through a Java Servlet that provides functionality to tailor the output (e.g., audio compression). Descriptions of other enhancements to bus route information systems, that are are not directly related to synthesized speech, have also been given. Three text-to-speech modules have been evaluated and to establish whether there is a link between intelligibility and naturalness in synthesized speech. Non-functional tests (transfer, response time, etc) have also been conducted to get an impression of whether service providers that use "cloud" technology provide a better service than an in-house system. There are no definitive answers to these questions, but results indicate that there might be a link (however small) between intelligibility and naturalness and that an in-house system is still preferable in the domain of bus route information.

Place, publisher, year, edition, pages
Institutt for datateknikk og informasjonsvitenskap , 2012. , 91 p.
Keyword [no]
ntnudaim:7746, MTDT datateknikk, Intelligente systemer
URN: urn:nbn:no:ntnu:diva-18920Local ID: ntnudaim:7746OAI: diva2:566372
Available from: 2012-11-08 Created: 2012-11-08

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