Academic overview

I have a PhD from University of Heidelberg, and worked as a researcher for six years before leaving academia to work as a developer. Currently I am a Visiting Researcher at Barcelona Supercomputing Center (BSC-CNS) and co-founder and CTO of Galtea AI. For more details you can take a look at my CV.

Speech Technologies

My work at BSC has focused on making speech technologies more accessible for low-resource and minority languages, and building large-scale speech corpora and synthesis systems.

Relevant articles

• Külebi, B.; Armentano-Oller, C.; Rodriguez-Penagos, C.; Villegas, M., 2022, ParlamentParla: A Large Catalan Parliamentary Speech Corpus, link
• García-Perera, L. F.; Comas-Girbau, E.; Duret-Canales, J.; Külebi, B.; Herranz, A. E.; Peiró, X.; Parra-Atienza, M.; Martínez, E.; Álvarez, O.; Bernabeu-Vidal, M.; Woszczyna, M.; Muñoz-Bueno, R.; Torres, M. I.; Martínez-Hinarejos, C. D., 2024, ILENIA: A Spanish Language Technologies Project to Generate Speech Resources for the Official Languages of Spain, Proc. IberSPEECH 2024, link
• Külebi, B., Öktem, A., Peiró-Lilja, A., Pascual, S., Farrús, M., 2020, CATOTRON — A Neural Text-to-Speech System in Catalan, Proc. Interspeech 2020, 490-491, link
• Külebi, B.; Öktem, A., 2018, Building an Open Source Automatic Speech Recognition System for Catalan, Proc. IberSPEECH 2018, 25-29, DOI: 10.21437/IberSPEECH.2018-6.

Matxa TTS

Matxa is the first voice synthesis model covering all major Catalan dialect variants (central, north-western, Balearic, and Valencian), developed at BSC.

Astrophysics

During my time in academia, my main topic of interest was stellar evolution and stellar atmospheres. I specialized on the Magnetic White Dwarfs and any physical process related to both their atmospheres and physical structure. I was mostly interested on the strength and geometry of the magnetic fields on their surfaces and how they have came to be.

White Dwarfs in general are important for studies of stellar evolution because they are one of the final stages of the life cycle of stars, specifically stars like our Sun. Their exotic, magnetic subtypes are of interest for understanding the complex fluid processes (such as convection) which the stars undergo throughout their life.

Selected articles

• Külebi, B.; Ekși, K. Y.; Lorén-Aguilar, P.; Isern, J.; García-Berro, E., 2013, Magnetic white dwarfs with debris discs, Monthly Notices of the Royal Astronomical Society, V. 431, I. 3, 2778-2788, DOI: 10.1093/mnras/stt374
• Külebi, B.; Kalirai, J.; Jordan, S.; Euchner, F., 2013, The progenitors of magnetic white dwarfs in open clusters, Astronomy & Astrophysics, V 554, id.A18, DOI: 10.1051/0004-6361/201218842
• Külebi, B.; Jordan, S.; Euchner, F.; Gänsicke, B. T.; Hirsch, H., 2009, Analysis of hydrogen-rich magnetic white dwarfs detected in the Sloan Digital Sky Survey, Astronomy and Astrophysics, V. 506, I. 3, 1341-1350, DOI: 10.1051/0004-6361/200912570.

For all of my articles and collaborations you can check NASA Astrophysics Data System.