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The NCHLT Speech Corpus of the South African languages
(Workshop Spoken Language Technologies for Under-resourced Languages (SLTU), 2014)
The NCHLT speech corpus contains wide-band speech from approximately
200 speakers per language, in each of the eleven
official languages of South Africa. We describe the design and
development processes that were ...
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 ...
G2P variant prediction techniques for ASR and STD
(Interspeech 2013, 2013)
Introducing pronunciation variants into a lexicon is a balancing
act: incorporating necessary variants can improve automatic
speech recognition (ASR) and spoken term detection (STD)
performance by capturing some of the ...
Collecting and evaluating speech recognition corpora for 11 South African languages
(Springer, 2011)
We describe the Lwazi corpus for automatic speech recognition (ASR), a new telephone speech corpus which contains data from the eleven official languages of South Africa. Because of practical constraints, the amount of ...
Medium-vocabulary speech recognition for under-resourced languages
(SLTU, 2012)
We report on the development of speech-recognition systems that are able to perform accurate recognition on mediumvocabulary tasks (i.e. tasks that require distinctions between approximately 200 different terms). We are ...
Efficient harvesting of Internet audio for resource-scarce ASR
(Interspeech 2011, 2011)
Spoken recordings that have been transcribed for human reading
(e.g. as captions for audiovisual material, or to provide alternative
modes of access to recordings) are widely available in many
languages. Such recordings ...
Performance analysis of a multilingual directory enquiries application
(Pattern Recognition Association of South Africa and Mechatronics International Conference, 2014)
In a multilingual society such as South Africa, a
practical directory enquiries (DE) application should be able to
serve users from various language backgrounds with information
relating to names in various languages: ...
Number pronunciation in a multilingual environment and implications for an ASR system
(Pattern Recognition Association of South Africa and Mechatronics International Conference, 2014)
The purpose of this paper is to address the challenges
and describe step-by-step solutions faced when developing an
automatic speech recognition system in multilingual societies.
We give a brief statistical analysis of ...