Durations of Context-Dependent Phonemes: A New Feature in Speaker Verification. - Charl Johannes van Heerden; Etienne Barnard (Speaker Classification (2), 2007)

Speaker-specific variability of phoneme durations. - Charl Johannes van Heerden; Etienne Barnard (South Afr. Comput. J., 2008)

Multilingual speaker age recognition: Regression analyses on the Lwazi corpus. - Michael Feld; Etienne Barnard; Charl Johannes van Heerden; Christian A. Müller (ASRU, 2009)

ASR corpus design for resource-scarce languages. - Etienne Barnard; Marelie H. Davel; Charl Johannes van Heerden (INTERSPEECH, 2009)

Basic speech recognition for spoken dialogues. - Charl Johannes van Heerden; Etienne Barnard; Marelie H. Davel (INTERSPEECH, 2009)

Language modeling for what-with-where on GOOG-411. - Charl Johannes van Heerden; Johan Schalkwyk; Brian Strope (INTERSPEECH, 2009)

Combining regression and classification methods for improving automatic speaker age recognition. - Charl Johannes van Heerden; Etienne Barnard; Marelie H. Davel; Christiaan van der Walt; Ewald van Dyk; Michael Feld; Christian A. Müller (ICASSP, 2010)

Voice search for development. - Etienne Barnard; Johan Schalkwyk; Charl Johannes van Heerden; Pedro J. Moreno 001 (INTERSPEECH, 2010)

Pooling ASR data for closely related languages. - Charl Johannes van Heerden; Neil Kleynhans; Etienne Barnard; Marelie H. Davel (SLTU, 2010)

Efficient Harvesting of Internet Audio for Resource-Scarce ASR. - Marelie H. Davel; Charl Johannes van Heerden; Neil Kleynhans; Etienne Barnard (INTERSPEECH, 2011)

Collecting and evaluating speech recognition corpora for 11 South African languages. - Jaco Badenhorst; Charl Johannes van Heerden; Marelie H. Davel; Etienne Barnard (Lang. Resour. Evaluation, 2011)

The Spoken Web Search Task at MediaEval 2011. - Florian Metze; Nitendra Rajput; Xavier Anguera; Marelie H. Davel; Guillaume Gravier; Charl Johannes van Heerden; Gautam Varma Mantena; Armando Muscariello; Kishore Prahallad; Igor Szöke; Javier Tejedor (ICASSP, 2012)

The Spoken Web Search Task. - Florian Metze; Etienne Barnard; Marelie H. Davel; Charl Johannes van Heerden; Xavier Anguera; Guillaume Gravier; Nitendra Rajput (MediaEval, 2012)

Validating smartphone-collected speech corpora. - Marelie H. Davel; Charl Johannes van Heerden; Etienne Barnard (SLTU, 2012)

Medium-vocabulary speech recognition for under-resourced languages. - Charl Johannes van Heerden; Marelie H. Davel; Etienne Barnard (SLTU, 2012)

G2p variant prediction techniques for ASR and STD. - Marelie H. Davel; Charl Johannes van Heerden; Etienne Barnard (INTERSPEECH, 2013)

The NCHLT speech corpus of the South African languages. - Etienne Barnard; Marelie H. Davel; Charl Johannes van Heerden; Febe de Wet; Jaco Badenhorst (SLTU, 2014)

Exploring minimal pronunciation modeling for low resource languages. - Marelie H. Davel; Etienne Barnard; Charl Johannes van Heerden; William Hartmann; Damianos G. Karakos; Richard M. Schwartz; Stavros Tsakalidis (INTERSPEECH, 2015)

Improving the Lwazi ASR Baseline. - Charl Johannes van Heerden; Neil Kleynhans; Marelie H. Davel (INTERSPEECH, 2016)

Code-switched English Pronunciation Modeling for Swahili Spoken Term Detection. - Neil Kleynhans; William Hartmann; Daniel R. van Niekerk; Charl Johannes van Heerden; Richard M. Schwartz; Stavros Tsakalidis; Marelie H. Davel (SLTU, 2016)

Constructing sub-word units for spoken term detection. - Charl Johannes van Heerden; Damianos G. Karakos; Karthik Narasimhan; Marelie H. Davel; Richard M. Schwartz (ICASSP, 2017)

Rapid Development of TTS Corpora for Four South African Languages. - Daniel R. van Niekerk; Charl Johannes van Heerden; Marelie H. Davel; Neil Kleynhans; Oddur Kjartansson; Martin Jansche; Linne Ha (INTERSPEECH, 2017)

Language Modeling for Speech Analytics in Under-Resourced Languages. - Simone Wills; Pieter Uys; Charl Johannes van Heerden; Etienne Barnard (INTERSPEECH, 2020)

The South African directory enquiries (SADE) name corpus. - Jan W. F. Thirion; Charl Johannes van Heerden; Oluwapelumi Giwa; Marelie H. Davel (Lang. Resour. Evaluation, 2020)

Multi-style Training for South African Call Centre Audio. - Walter Heymans; Marelie H. Davel; Charl Johannes van Heerden (SACAIR, 2021)

Efficient acoustic feature transformation in mismatched environments using a Guided-GAN. - Walter Heymans; Marelie H. Davel; Charl Johannes van Heerden (Speech Commun., 2022)