Now showing items 1-4 of 4

    • Efficient data selection for ASR 

      Kleynhans, Neil; Barnard, Etienne (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 ...
    • Predicting vowel substitution in code-switched speech 

      Modipe, Thipe I.; Davel, Marelie H. (Pattern Recognition Association of South Africa and Mechatronics International Conference, 2015)
      Abstract—The accuracy of automatic speech recognition (ASR) systems typically degrades when encountering codeswitched speech. Some of this degradation is due to the unexpected pronunciation effects introduced when ...
    • The semi-automated creation of stratified speech corpora 

      Van Heerden, Carel; Barnard, Etienne; Davel, Marelie H. (Pattern recognition association of South Africa (PRASA), 2013)
      Smartphones provide an efficient means for the collection of speech data; however, the quality of the corpora created in this fashion is not predictable. We describe an approach that allows us to post-process and rank ...
    • Woefzela - an open-source platform for ASR data collection in the developing world 

      de Vries, Nic J.; Badenhorst, Jaco; Davel, Marelie H.; Barnard, Etienne; de Waal, Alta (Interspeech 2011, 2011)
      Building transcribed speech corpora for under-resourced languages plays a pivotal role in developing speech technologies for such languages. We have developed an open-source tool for devices running the Android operating ...