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Browsing by Author "Schlunz, Georg I"

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AAC services for multilingual populations: South African service provider perspectives

Author: Tönsing, KM ; Van Niekerk, K ; Schlunz, Georg I ; Wilken, Ilana Date: Jun 2018 BACKGROUND: In South Africa, many persons in need of augmentative and alternative communication (AAC) come from multilingual backgrounds. There is as yet a limited evidence base (locally and internationally) for the provision of AAC services ... Read more
Applications in accessibility of text-to-speech synthesis for South African languages: Initial system integration and user engagement

Author: Schlunz, Georg I ; Wilken, Ilana ; Moors, Carmen ; Gumede, Tebogo ; Van der Walt, Willem J ; Calteaux, Karen V ; Tönsing, K ; Van Niekerk, K Date: Sep 2017 Persons with certain disabilities face barriers to information access and interpersonal communication. Assistive technologies provide workaround solutions to these problems. Augmentative and alternative communication systems aid the person ... Read more
A discourse model of affect for text-to-speech synthesis

Author: Schlunz, Georg I ; Barnard, E Date: Dec 2013 This paper introduces a model of affect to improve prosody in text-to-speech synthesis. It operates on the discourse level of text to predict the underlying linguistic factors that contribute towards emotional appraisal, rather than any ... Read more
Multilingualism and augmentative and alternative communication in South Africa – Exploring the views of persons with complex communication needs

Author: Tönsing, KM ; Van Niekerk, K ; Schlunz, Georg I ; Wilken, Ilana Date: Apr 2019 Background: Augmentative and alternative communication (AAC) can assist persons with complex communication needs to communicate competently with a variety of communication partners in a variety of contexts. However, AAC systems and intervention ... Read more
Part-of-speech effects on text-to-speech synthesis

Author: Schlunz, Georg I ; Barnard, E ; Van Huyssteen, GB Date: Nov 2010 One of the goals of text-to-speech (TTS) systems is to produce natural-sounding synthesised speech. Towards this end various natural language processing (NLP) tasks are performed to model the prosodic aspects of the TTS voice. One of the ... Read more
Part-of-speech tagging and chunking in text-to-speech synthesis for South African languages

Author: Schlunz, Georg I ; Dlamini, Nkosikhona ; Kruger, Rynhardt P Date: Sep 2016 Text-to-speech synthesis can be an empowering communication tool in the hands of the print-disabled or augmentative and alternative communication user. In an effort to improve the naturalness of synthesised speech – and thus enhance the ... Read more
Perceptual evaluation of corpus-based speech synthesis techniques in under-resourced environments

Author: Van Niekerk, DR ; Barnard, E ; Schlunz, Georg I Date: Nov 2009 With the increasing prominence and maturity of corpus-based techniques for speech synthesis, the process of system development has in some ways been simplified considerably. However, the dependence on sufficient amounts of relevant speech ... Read more
The Speect text-to-speech system entry for the Blizzard Challenge 2013

Author: Louw, Johannes A ; Schlunz, Georg I ; Van der Walt, W ; De Wet, Febe ; Pretorius, L Date: Sep 2013 This paper describes the speect text-to-speech system entry for the Blizzard Challenge 2013. The techniques applied for the tasks of the challenge are described as well as the implementation details for the alignment of the audio books and ... Read more
Text normalisation in text-to-speech synthesis for South African languages: native number expansion

Author: Schlunz, Georg I ; Dlamini, Nkosikhona ; Tshoane, Alfred ; Ramunyisi, Ndivhuwo S Date: Nov 2017 Text normalisation in text-to-speech synthesis comprises the segmentation and classification of the incoming text and the subsequent expansion of non-standard words into their standard word, spoken forms. We present a rule-based implementation ... Read more
Usability of text-to-speech synthesis to bridge the digital divide in South Africa: Language practitioner perspectives

Author: Schlunz, Georg I Date: Dec 2018 We report on two sets of perceptual evaluations of our South African text-to-speech voices by language practitioners. In the first evaluation, we measure baseline quality in terms of how understandable and human-like the voices sound. We also ... Read more

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Browsing by Author "Schlunz, Georg I"

Browsing by Author "Schlunz, Georg I"

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All of ResearchSpace

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Legislation and compliance

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