Preprint

An Exhaustive Evaluation of TTS- and VC-based Data Augmentation for ASR

Ogun, S., Colotte, V., Vincent, E.

arXiv preprint arXiv:2503.08954, 2025

• paper

2026

Sometin Beta Pass Notin: Improving Multilingual ASR for Nigerian Languages via Knowledge Distillation

Ogun, S.

IEEE Spoken Language Technology Workshop (SLT) 2026

• paper

2025

The NaijaVoices Dataset: Cultivating Large-Scale, High-Quality, Culturally-Rich Speech Data for African Languages

Emezue, C., NaijaVoices Community, Awobade, B., Owodunni, A., Emezue, H., Emezue, G. M. T., Emezue, N. N., Ogun, S., Akinremi, B., Adelani, D. I., & Pal, C.

Interspeech 2025

• paper

2024

Generating diverse synthetic data for ASR training data augmentation

Ogun, S.

PhD thesis, Université de Lorraine, 2024

• paper
• slides

Performant ASR Models for Medical Entities in Accented Speech

Afonja, T., Olatunji, T., Ogun, S., Etori, N. A., Owodunni, A., & Yekini, M.

Interspeech 2024

• paper
• model

1000 African Voices: Advancing inclusive multi-speaker multi-accent speech synthesis

Ogun, S., Owodunni, A. T., Olatunji, T., Alese, E., Oladimeji, B., Afonja, T., ... & Adewumi, T.

Interspeech 2024

• paper
• model

STATE OF THE ART. THINK BEFORE LOADING.

Guillaume Coiffier, Sewade Ogun, Leo Valque, Priyansh Trivedi

2024, ISBN 978-2-9591975-0-5, hal-04509255

• paper

2023

Stochastic Pitch Prediction Improves the Diversity and Naturalness of Speech in Glow-TTS

Ogun, S., Colotte, V., Vincent, E.

Proc. Interspeech 2023, 4878–4882, doi:10.21437/Interspeech.2023-1673

• paper
• code

Can we use Common Voice to train a Multi-Speaker TTS system?

Ogun, S., Colotte, V., & Vincent, E.

2022 IEEE Spoken Language Technology Workshop (SLT), pp. 900–905

• paper
• dataset

2021

Towards a weakly-supervised learning paradigm for speech recognition

Ndoye, A., Ogun, S., Adi, Y., & Cisse, M.

Master's thesis, 2021

• paper
• code

Talks & presentations

Implementation and evaluation of a research paper

Talk, AI Saturdays Lagos research community

Generating diverse synthetic dataset for ASR training data augmentation

PhD thesis defense, Nancy

1000 African Voices: Advancing inclusive multi-speaker multi-accent speech synthesis

Poster, Interspeech 2024

Stochastic Pitch Prediction Improves the Diversity and Naturalness of Speech in Glow-TTS

Poster, Interspeech 2023

Data augmentation for speech processing tasks

Lecture, speech corpus course, Masters TAL, University of Lorraine

Can we use Common Voice to train a Multi-Speaker TTS system?

Poster, SLT 2023, Doha

Adversarial Examples

Talk, African Institute for Mathematical Sciences, Ghana

Chance Constrained Optimization

Convex Optimization course, AIMS