By Associate Professor Vidhyasaharan Sethu

Book Chapters

Sethu V; Epps J; Ambikairajah E, 2015, 'Speech based emotion recognition', in Speech and Audio Processing for Coding, Enhancement and Recognition, Springer Link, pp. 197 - 228, http://dx.doi.org/10.1007/978-1-4939-1456-2_7

Ambikairajah E; Sethu V; Eaton R; Sheng M, 2014, 'Evolving use of educational technologies: Enhancing lectures', in Using Technology Tools to Innovate Assessment Reporting and Teaching Practices in Engineering Education, pp. 241 - 258, http://dx.doi.org/10.4018/978-1-4666-5011-4.ch018

Journal articles

Meng H; Breebaart J; Stoddard J; Sethu V; Ambikairajah E, 2026, 'A unified deep learning framework for estimating acoustic context parameters from first order ambisonic speech recordings', EURASIP Journal on Audio, Speech, and Music Processing, 2026, pp. 13, http://dx.doi.org/10.1186/s13636-025-00443-0

Jing M; Sethu V; Ahmed B; Lee KA, 2025, 'Quantifying prediction uncertainties in automatic speaker verification systems', Computer Speech and Language, 94, http://dx.doi.org/10.1016/j.csl.2025.101806

Wu J; Dang T; Sethu V; Ambikairajah E, 2025, 'How many raters do we need? Analyses of uncertainty in estimating ambiguity-aware emotion labels', IEEE Transactions on Affective Computing, http://dx.doi.org/10.1109/TAFFC.2025.3616071

Charls D; Sethu V; Ahmed B, 2025, 'Uncertainty-Aware Domain Adaptation for ECG Classification', Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society EMBS, http://dx.doi.org/10.1109/EMBC58623.2025.11254147

Zhang Q; Wickramasinghe B; Ambikairajah E; Sethu V; Li H, 2025, 'Should Audio Front-Ends be Adaptive? Comparing Learnable and Adaptive Front-Ends', IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 33, pp. 998 - 1010, http://dx.doi.org/10.1109/TASLPRO.2025.3542281

Haghshenas Y; Wong WP; Gunawan D; Khataee A; Keyikoğlu R; Razmjou A; Kumar PV; Toe CY; Masood H; Amal R; Sethu V; Teoh WY, 2024, 'Predicting the rates of photocatalytic hydrogen evolution over cocatalyst-deposited TiO2 using machine learning with active photon flux as a unifying feature', Ees Catalysis, 2, pp. 612 - 623, http://dx.doi.org/10.1039/d3ey00246b

Haghshenas Y; Wong WP; Sethu V; Amal R; Kumar PV; Teoh WY, 2024, 'Full prediction of band potentials in semiconductor materials', Materials Today Physics, 46, pp. 101519, http://dx.doi.org/10.1016/j.mtphys.2024.101519

Bose D; Sethu V; Ambikairajah E, 2024, 'Continuous Emotion Ambiguity Prediction: Modeling with Beta Distributions', IEEE Transactions on Affective Computing, 15, pp. 1684 - 1695, http://dx.doi.org/10.1109/TAFFC.2024.3367371

Wu J; Dang T; Sethu V; Ambikairajah E, 2024, 'Dual-Constrained Dynamical Neural ODEs for Ambiguity-aware Continuous Emotion Prediction', Proceedings of the Annual Conference of the International Speech Communication Association Interspeech, pp. 3185 - 3189, http://dx.doi.org/10.21437/Interspeech.2024-119

Wickramasinghe B; Ambikairajah E; Sethu V; Epps J; Li H; Dang T, 2023, 'DNN controlled adaptive front-end for replay attack detection systems', Speech Communication, 154, http://dx.doi.org/10.1016/j.specom.2023.102973

Masood H; Sirojan T; Toe CY; Kumar PV; Haghshenas Y; Sit PHL; Amal R; Sethu V; Teoh WY, 2023, 'Enhancing prediction accuracy of physical band gaps in semiconductor materials', Cell Reports Physical Science, 4, http://dx.doi.org/10.1016/j.xcrp.2023.101555

Wu J; Dang T; Sethu V; Ambikairajah E, 2023, 'A Novel Markovian Framework for Integrating Absolute and Relative Ordinal Emotion Information', IEEE Transactions on Affective Computing, 14, pp. 2089 - 2101, http://dx.doi.org/10.1109/TAFFC.2022.3159782

Ramandi HL; Irtza S; Sirojan T; Naman A; Mathew R; Sethu V; Roshan H; Lamei Ramandi H, 2022, 'FracDetect: A novel algorithm for 3D fracture detection in digital fractured rocks', Journal of Hydrology, 607, pp. 127482, http://dx.doi.org/10.1016/j.jhydrol.2022.127482

Wu J; Dang T; Sethu V; Ambikairajah E, 2021, 'Multimodal Affect Models: An Investigation of Relative Salience of Audio and Visual Cues for Emotion Prediction', Frontiers in Computer Science, 3, http://dx.doi.org/10.3389/fcomp.2021.767767

Gunendradasan T; Ambikairajah E; Epps J; Sethu V; Li H, 2021, 'An adaptive transmission line cochlear model based front-end for replay attack detection', Speech Communication, 132, pp. 114 - 122, http://dx.doi.org/10.1016/j.specom.2021.06.004

Aboutanios E; Sethu V; Ambikairajah E; Taubman DS; Epps J, 2021, 'Teaching Signal Processing through Frequent and Diverse Design: A Pedagogical Approach', IEEE Signal Processing Magazine, 38, pp. 133 - 143, http://dx.doi.org/10.1109/MSP.2021.3057855

Wu J; Dang T; Sethu V; Ambikairajah E, 2021, 'A Novel Markovian Framework for Integrating Absolute and Relative Ordinal Emotion Information.', CoRR, abs/2108.04605

Cummins N; Sethu V; Epps J; Williamson JR; Quatieri TF; Krajewski J, 2020, 'Generalized two-stage rank regression framework for depression score prediction from speech', IEEE Transactions on Affective Computing, 11, pp. 272 - 283, http://dx.doi.org/10.1109/TAFFC.2017.2766145

Suthokumar G; Sriskandaraja K; Sethu V; Ambikairajah E; Li H, 2020, 'An analysis of speaker dependent models in replay detection', Apsipa Transactions on Signal and Information Processing, 9, http://dx.doi.org/10.1017/ATSIP.2020.9

Huang Z; Epps J; Joachim D; Sethu V, 2020, 'Natural Language Processing Methods for Acoustic and Landmark Event-Based Features in Speech-Based Depression Detection', IEEE Journal on Selected Topics in Signal Processing, 14, pp. 435 - 448, http://dx.doi.org/10.1109/JSTSP.2019.2949419

Masood H; Toe CY; Teoh WY; Sethu V; Amal R, 2019, 'Machine Learning for Accelerated Discovery of Solar Photocatalysts', ACS Catalysis, 9, pp. 11774 - 11787, http://dx.doi.org/10.1021/acscatal.9b02531

Vukovic M; Sethu V; Parker J; Cavedon L; Lech M; Thangarajah J, 2019, 'Estimating cognitive load from speech gathered in a complex real-life training exercise', International Journal of Human Computer Studies, 124, pp. 116 - 133, http://dx.doi.org/10.1016/j.ijhcs.2018.12.003

Brown S; Sethu V; Taubman D, 2019, 'Spatial Wiener filter to reduce spatial aliasing with spherical microphone arrays', Journal of the Acoustical Society of America, 145, pp. 2254 - 2264, http://dx.doi.org/10.1121/1.5096184

Sethu V; Provost EM; Epps J; Busso C; Cummins N; Narayanan SS, 2019, 'The Ambiguous World of Emotion Representation.', CoRR, abs/1909.00360

Ma J; Sethu V; Ambikairajah E; Lee KA, 2018, 'Generalized variability model for speaker verification', IEEE Signal Processing Letters, 25, pp. 1775 - 1779, http://dx.doi.org/10.1109/LSP.2018.2874814

Dang T; Sethu V; Ambikairajah E, 2018, 'Compensation Techniques for Speaker Variability in Continuous Emotion Prediction', IEEE Transactions on Affective Computing, pp. 1 - 15, http://dx.doi.org/10.1109/TAFFC.2018.2883044

Irtza S; Sethu V; Ambikairajah E; Li H, 2018, 'Using language cluster models in hierarchical language identification', Speech Communication, 100, pp. 30 - 40, http://dx.doi.org/10.1016/j.specom.2018.04.004

Fernando S; Sethu V; Ambikairajah E, 2018, 'Hidden variability subspace learning for adaptation of deep neural networks', Electronics Letters, 54, pp. 173 - 175, http://dx.doi.org/10.1049/el.2017.4027

Sriskandaraja K; Sethu V; Ambikairajah E; Li H, 2017, 'Front-end for antispoofing countermeasures in speaker verification: Scattering spectral decomposition', IEEE Journal on Selected Topics in Signal Processing, 11, pp. 632 - 643, http://dx.doi.org/10.1109/JSTSP.2016.2647202

Ma J; Sethu V; Ambikairajah E; Lee KA, 2017, 'Duration compensation of i-vectors for short duration speaker verification', Electronics Letters, 53, pp. 405 - 407, http://dx.doi.org/10.1049/el.2016.4629

Cummins N; Sethu V; Epps J; Schnieder S; Krajewski J, 2015, 'Analysis of acoustic space variability in speech affected by depression', Speech Communication, 75, pp. 27 - 49, http://dx.doi.org/10.1016/j.specom.2015.09.003

Thiruvaran T; Sethu V; Ambikairajah E; Li H, 2015, 'Spectral shifting of speaker-specific information for narrow band telephonic speaker recognition', Electronics Letters, http://dx.doi.org/10.1049/el.2015.3117

Sethu V; Ambikairajah E; Epps J, 2013, 'On the use of speech parameter contours for emotion recognition', Eurasip Journal on Audio Speech and Music Processing, 2013, http://dx.doi.org/10.1186/1687-4722-2013-19

Le NP; Ambikairajah E; Epps JR; Sethu V; Choi E, 2011, 'Investigation of spectral centroid features for cognitive load classification', Speech Communication, 53, pp. 540 - 551, http://dx.doi.org/10.1016/j.specom.2011.01.005

Ambikairajah E; Li H; Wang L; Yin B; Sethu V, 2011, 'Language Identification: A Tutorial', Circuits and Systems Magazine, IEEE, 11, pp. 82 - 108, http://dx.doi.org/10.1109/MCAS.2011.941081

Sethu V; Ambikairajah E; Ge L, 2008, 'Selective weighting of undecimated wavelet coefficients for noise reduction in SAR interferograms', Eurasip Journal on Advances In Signal Processing, pp. 78092 - 78099

Meng D; Sethu V; Ambikairajah E; Ge L, 2007, 'A novel technique for noise reduction in InSAR images', IEEE Geoscience and Remote Sensing Letters, 4, pp. 226 - 230, http://dx.doi.org/10.1109/LGRS.2006.888845

Conference Papers

Meng H; Sethu V; Ambikairajah E; Zhang Q; Li H, 2026, 'Adaptive Per-Channel Energy Normalization Front-End for Robust Audio Signal Processing', Institute of Electrical and Electronics Engineers (IEEE), pp. 14757 - 14761, presented at ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), http://dx.doi.org/10.1109/icassp55912.2026.11461899

Charls D; Sirojan T; Sethu V; Ahmed B, 2026, 'Structure-Aware Diffusion Schrödinger Bridge', in ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, pp. 4906 - 4910, presented at ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 03 May 2026 - 08 May 2026, http://dx.doi.org/10.1109/icassp55912.2026.11460455

Ambikairajah E; Wu J; Dang T; Sethu V, 2025, 'A Study of Speech Embedding Similarities Between Australian Aboriginal and High-Resource Languages', in Proceedings of the Annual Conference of the International Speech Communication Association Interspeech, pp. 1498 - 1502, http://dx.doi.org/10.21437/Interspeech.2025-911

Hong X; Gong Y; Sethu V; Dang T, 2025, 'AER-LLM: Ambiguity-aware Emotion Recognition Leveraging Large Language Models', in ICASSP IEEE International Conference on Acoustics Speech and Signal Processing Proceedings, http://dx.doi.org/10.1109/ICASSP49660.2025.10888198

Meng H; Breebaart J; Stoddard J; Sethu V; Ambikairajah E, 2025, 'Blind Estimation of Sub-band Acoustic Parameters from Ambisonics Recordings using Spectro-Spatial Covariance Features', in ICASSP IEEE International Conference on Acoustics Speech and Signal Processing Proceedings, http://dx.doi.org/10.1109/ICASSP49660.2025.10887842

Dang T; Jeyaseelan TM; Ambikairajah E; Sethu V, 2025, 'Characterization of Speech Similarity Between Australian Aboriginal and High-Resource Languages: A Case Study on Dharawal', in 2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference Apsipa ASC 2025, pp. 658 - 663, http://dx.doi.org/10.1109/APSIPAASC65261.2025.11249066

Jing M; Sethu V; Ahmed B, 2025, 'Evidential Neural GPLDA: A Novel Approach to Quantify Prediction Uncertainty in Speaker Verification Systems', in ICASSP IEEE International Conference on Acoustics Speech and Signal Processing Proceedings, http://dx.doi.org/10.1109/ICASSP49660.2025.10887887

Jing M; Sethu V; Ahmed B, 2025, 'Improved Out-of-domain Detection in VAE Latent Spaces with Boundary-driven Regularisation', in ICASSP IEEE International Conference on Acoustics Speech and Signal Processing Proceedings, http://dx.doi.org/10.1109/ICASSP49660.2025.10890806

Ambikairajah E; Sirojan T; Sethu V, 2025, 'Tiered Assessment for DSP Education: Exploring Students' Motivation and Performance', in 2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference Apsipa ASC 2025, pp. 1847 - 1852, http://dx.doi.org/10.1109/APSIPAASC65261.2025.11249035

Hong X; Gong Y; Sethu V; Dang T, 2025, 'AER-LLM: Ambiguity-aware Emotion Recognition Leveraging Large Language Models.', in ICASSP, IEEE, pp. 1 - 5, https://doi.org/10.1109/ICASSP49660.2025

Meng H; Breebaart J; Stoddard J; Sethu V; Ambikairajah E, 2025, 'Blind Estimation of Sub-band Acoustic Parameters from Ambisonics Recordings using Spectro-Spatial Covariance Features.', in ICASSP, IEEE, pp. 1 - 5, https://doi.org/10.1109/ICASSP49660.2025

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