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Correlation between rapid learnability and user preference in IVR systems for developing regions
(iIST-Africa, 2013)
Access to information and communication is one of the most important needs in any population group. It is generally challenging for people in the developing world to access information because the tools and the technologies ...
Generating fundamental frequency contours for speech synthesis in Yorùbá
(International Speech Communication Association ( ISCA ), 2013)
We present methods for modelling and synthesising fundamental frequency (F0) contours suitable for application in text-to-speech (TTS) synthesis of Yorùbá (an African tone language). These methods are discussed and compared ...
Speech data collection in an under-resourced language within a multilingual context
(International Research Institute MICA, 2014)
In this paper, we present an end-to-end solution to the development of an automatic speech recognition (ASR) system in
typical under-resourced languages, where the target language is likely to be influenced by one more ...
Adapting mobile medical information search to low-resourced areas
(IST-Africa, 2013)
Providing good medical care in low-resourced areas is a challenge faced by many low and middle income countries. Continuously improving mobile communication infrastructure in these areas is however providing the opportunity ...
A voice service for user feedback on school meals
(ACM, 2012)
Research using voice-based services as a technology platform for providing information access and services within developing world regions has shown much promise. The results for design and deployment of such voice-based ...
Determination and the no-free-lunch paradox
(MIT Press, 2011)
We discuss the no-free-lunch NFL theorem for supervised learning as a logical paradox—that is, as a counterintuitive result that is correctly proven from apparently incontestable assumptions. We show that the uniform prior ...
Efficient data selection for ASR
(Language Resources and Evaluation, 2015)
Automatic speech recognition (ASR) technology has matured over the past few decades and has made significant impacts in a variety of fields, from assistive technologies to commercial products. However, ASR system development ...
Wolof Speech Recognition Model of Digits and Limited-Vocabulary Based on HMM and ToolKit
(Computer Modelling and Simulation (UKSim), 2012 UKSim 14th International Conference on, 2012)
This paper is concerned with Automatic Speech Recognition (ASR) using trainable systems. The aim of this work is to build acoustic models for spoken language Wolof. This is done by employing Hidden Markov Models (HMM) and ...
Processing spoken lectures in resource-scarce environments
(Pattern Recognition Association of South Africa and Mechatronics International Conference, 2011)
Initial work towards processing Afrikaans spoken
lectures in a resource-scarce environment is presented. Two
approaches to acoustic modeling for eventual alignment are
compared: (a) using a well-trained target-language ...
Analysing co-articulation using frame-based feature trajectories
(Pattern Recognition Association of South Africa and Mechatronics International Conference, 2010)
We investigate several approaches aimed at a more
detailed understanding of co-articulation in spoken utterances.
We find that the Euclidean difference between instantaneous
frame-based feature values and the mean values ...