Now showing items 1-8 of 8

    • Automatic speech segmentation with limited data 

      Van Niekerk, Daniel Rudolph (North-West University, 2009)
      The rapid development of corpus-based speech systems such as concatenative synthesis systems for under-resourced languages requires an efficient, consistent and accurate solution with regard to phonetic speech segmentation. ...
    • Evaluating acoustic modelling of lexical stress for Afrikaans speech synthesis 

      Van Niekerk, Daniel R. (Pattern Recognition Association of South Africa and Mechatronics International Conference, 2017)
      An explicit lexical stress feature is investigated for statistical parametric speech synthesis in Afrikaans: Firstly, objective measures are used to assess proposed annotation protocols and dictionaries compared to the ...
    • Generating fundamental frequency contours for speech synthesis in Yorùbá 

      Van Niekerk, Daniel R.; Barnard, Etienne (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 ...
    • Predicting utterance pitch targets in Yoruba for tone realisation in speech synthesis 

      Van Niekerk, Daniel R.; Barnard, Etienne (Elsevier, 2014)
      Pitch is a fundamental acoustic feature of speech and as such needs to be determined during the process of speech synthesis. While a range of communicative functions are attributed to pitch variation in speech of all ...
    • Syllabification for Afrikaans speech synthesis 

      Van Niekerk, Daniel R. (Pattern Recognition Association of South Africa and Mechatronics International Conference, 2016)
      This paper describes the continuing development of a pronunciation resource for speech synthesis of Afrikaans by augmenting an existing pronunciation dictionary to include syllable boundaries and stress. Furthermore, ...
    • A target Approximation Intonation Model for Yorùbá TTS 

      van Niekerk, Daniël R.; Barnard, Etienne (ISCA, 2014)
      A complete intonation model based on quantitative target approximation is described for Yorùbá text-to-speech (TTS) synthesis. This model is evaluated analytically and perceptually and compared to a fundamental frequency ...
    • A Target Approximation Intonation Model for Yorùbá TTS 

      Van Niekerk, Daniel R.; Barnard, Etienne (Interspeech 2014, 2014)
      A complete intonation model based on quantitative target approximation is described for Yor`ub´a text-to-speech (TTS) synthesis. This model is evaluated analytically and perceptually and compared to a fundamental frequency ...
    • Tone realisation for speech synthesis of Yorùbá 

      Van Niekerk, Daniel Rudolph (North West University, 2014)
      Speech technologies such as text-to-speech synthesis (TTS) and automatic speech recognition (ASR) have recently generated much interest in the developed world as a user-interface medium to smartphones [1, 2]. However, it ...