1,072 research outputs found

    Speech Synthesis Based on Hidden Markov Models

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    Analysis on Using Synthesized Singing Techniques in Assistive Interfaces for Visually Impaired to Study Music

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    Tactile and auditory senses are the basic types of methods that visually impaired people sense the world. Their interaction with assistive technologies also focuses mainly on tactile and auditory interfaces. This research paper discuss about the validity of using most appropriate singing synthesizing techniques as a mediator in assistive technologies specifically built to address their music learning needs engaged with music scores and lyrics. Music scores with notations and lyrics are considered as the main mediators in musical communication channel which lies between a composer and a performer. Visually impaired music lovers have less opportunity to access this main mediator since most of them are in visual format. If we consider a music score, the vocal performer’s melody is married to all the pleasant sound producible in the form of singing. Singing best fits for a format in temporal domain compared to a tactile format in spatial domain. Therefore, conversion of existing visual format to a singing output will be the most appropriate nonlossy transition as proved by the initial research on adaptive music score trainer for visually impaired [1]. In order to extend the paths of this initial research, this study seek on existing singing synthesizing techniques and researches on auditory interfaces

    Final Report to NSF of the Standards for Facial Animation Workshop

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    The human face is an important and complex communication channel. It is a very familiar and sensitive object of human perception. The facial animation field has increased greatly in the past few years as fast computer graphics workstations have made the modeling and real-time animation of hundreds of thousands of polygons affordable and almost commonplace. Many applications have been developed such as teleconferencing, surgery, information assistance systems, games, and entertainment. To solve these different problems, different approaches for both animation control and modeling have been developed

    Assessing the naturalness of Malay emotional voice corpora

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    This research reports the development and evaluation of Malay emotional voice corpora through listening evaluation, and how the numbers of emotion choices offered to evaluators affect the result of the evaluation. The voice corpora comprises of three emotions, namely anger, sadness and happiness being expressed by two male and two female actors. The voice corpora were evaluated in two separate listening tests involving a number of Malay native evaluators balanced for gender, age and profession. In the first listening test, evaluators were given twenty five choices of emotions to choose from. For the second test, the number of emotion choices is only five. Each test was conducted separately with different group of evaluators. The results of the two tests are grossly different with the emotion identification rate of the first test lower than the second test

    Towards the Use of Dialog Systems to Facilitate Inclusive Education

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    Continuous advances in the development of information technologies have currently led to the possibility of accessing learning contents from anywhere, at anytime, and almost instantaneously. However, accessibility is not always the main objective in the design of educative applications, specifically to facilitate their adoption by disabled people. Different technologies have recently emerged to foster the accessibility of computers and new mobile devices, favoring a more natural communication between the student and the developed educative systems. This chapter describes innovative uses of multimodal dialog systems in education, with special emphasis in the advantages that they provide for creating inclusive applications and learning activities

    Quality evaluation of synthesized speech

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