Audio Classification

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Overview

Audio classification studies how to assign sounds to labels, from spoken words and music genres to bird calls, machine faults, and respiratory conditions. Systems commonly use spectrograms, mel-frequency cepstral coefficients, or raw waveforms with convolutional networks, transformers, and pretrained or self-supervised audio encoders; limited-label settings also use transfer learning, few-shot methods, and audio-language models. Benchmarks such as AudioSet, ESC-50, UrbanSound8K, and ICBHI test different tasks, but strong benchmark scores may not carry over across recording devices, locations, speakers, or species. A central challenge is building reliable models from scarce or weak labels while avoiding data leakage and shortcuts, and keeping models efficient enough for clinical and on-device use.

Latest papers

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147 papers18 papers in the last four weeks, up 6% on the four weeks before. 0.1% of all new papers.

  1. YMIR: A new Benchmark Dataset and Model for Arabic Yemeni Music Genre Classification Using Convolutional Neural Networks

    Apr 6, 2026Moeen AL-Makhlafi, Abdulrahman A. AlKannad, Eiad Almekhlafi +2Music Information RetrievalAudio Classification

    School of Artificial Intelligence, Xidian University, Xi’an, China. · Department of Information Science and Technology, Northwest University, Xi’an 710127, China.

  2. If It's Good Enough for You, It's Good Enough for Me: Transferability of Audio Sufficiencies across Models

    Apr 3, 2026David A. Kelly, Hana ChocklerAudio Classification

    King’s College London UK

  3. Real-Time Voicemail Detection in Telephony Audio Using Temporal Speech Activity Features

    Apr 2, 2026Kumar SauravSpeech ProcessingAudio Classification

    CTO, ClearGrid

  4. Can LLM Agents Identify Spoken Dialects like a Linguist?

    Mar 31, 2026Tobias Bystrich, Lukas Hamm, Maria Hassan +3Audio ClassificationLLM Agents

    Department of Computer Science, University of Bonn, Germany · Research Center Deutscher Sprachatlas, Marburg University, Germany · Bonn-Aachen International Center for Information Technology, University of Bonn, Germany +1

  5. How Class Ontology and Data Scale Affect Audio Transfer Learning

    Mar 26, 2026Manuel Milling, Andreas Triantafyllopoulos, Alexander Gebhard +2Transfer LearningAudio Classification

    CHI – Chair of Health Informatics, Technical University of Munich, Munich, Germany · MCML – Munich Center for Machine Learning, Munich, Germany · MDSI – Munich Data Science Institute, Munich, Germany +1

  6. Unlocking Strong Supervision: A Data-Centric Study of General-Purpose Audio Pre-Training Methods

    Mar 26, 2026Xuanru Zhou, Yiwen Shao, Wei-Cheng Tseng +1Audio Representation LearningAudio Classification

    UT-Austin, Austin, USA · Tencent AI Lab, Bellevue, USA

  7. BioDCASE 2026 Challenge Baseline for Cross-Domain Mosquito Species Classification

    Mar 20, 2026Yuanbo Hou, Vanja Zdravkovic, Marianne Sinka +5BioacousticsAudio Classification

    Machine Learning Research Group, University of Oxford · Oxford Long-Term Ecology Laboratory, University of Oxford · King’s College London +1

  8. Music Genre Classification: A Comparative Analysis of Classical Machine Learning and Deep Learning Approaches

    Mar 16, 2026Sachin Prajuli, Abhishek Karna, OmPrakash DhaklAudio ClassificationMusic Information Retrieval

    Computer Science and Engineering, University of texas at Arlington, Arlington, USA · Electronics and Computer Engineering, Tribhuvan University, IOE, kathmandu · Electronics and Computer Engineering, Tribhuvan University, IOE, Dharan

  9. Geo-ATBench: A Benchmark for Geospatial Audio Tagging with Geospatial Semantic Context

    Mar 11, 2026Yuanbo Hou, Yanru Wu, Qiaoqiao Ren +3Audio ClassificationSound Event Detection

    Machine Learning Research Group, Engineering Science, University of Oxford, UK · Department of Intelligent Science, Xi’an Jiaotong-Liverpool University, China · EECS, KTH Royal Institute of Technology, Sweden +1

  10. Abjad-Kids: An Arabic Speech Classification Dataset for Primary Education

    Mar 11, 2026Abdul Aziz Snoubara, Baraa Al_Maradni, Haya Al_Naal +4Speech ProcessingAudio Classification

    Arab International University, Daraa, Syria.

  11. Quantifying Cross-Lingual Transfer in Paralinguistic Speech Tasks

    Mar 9, 2026Pol Buitrago, Oriol Pareras, Federico Costa +1Speaker VerificationSpeech Processing

    Barcelona Supercomputing Center (BSC), Spain · Universitat Polit`ecnica de Catalunya (UPC), Spain

  12. Soundscapes in Spectrograms: Pioneering Multilabel Classification for South Asian Sounds

    Mar 9, 2026Sudip Chakrabarty, Pappu Bishwas, Rajdeep Chatterjee +3Audio ClassificationMulti-Label Classification

    School of Computer Engineering, KIIT Deemed to be University, Bhubaneswar, India · School of Computation, Information and Technology, Technical University of Munich, Germany · School of Computer Engineering, American International University, Dhaka, Bangladesh

  13. Towards Objective Gastrointestinal Auscultation: Automated Segmentation and Annotation of Bowel Sound Patterns

    Mar 7, 2026Zahra Mansour, Verena Uslar, Dirk Weyhe +2Sound Event DetectionAudio Classification

    Division AI4Health, Department for Health Services Research, Faculty of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany · Fraunhofer IDMT, Institute Part HSA, 26129 Oldenburg, Germany · University Clinic for Visceral Surgery, Faculty of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, 26121 Oldenburg, Germany

  14. Adaptive Discovery of Interpretable Audio Attributes with Multimodal LLMs for Low-Resource Classification

    Mar 7, 2026Kosuke Yoshimura, Hisashi KashimaAudio Classification

    Kyoto University, Kyoto, Japan

  15. LMU-Based Sequential Learning and Posterior Ensemble Fusion for Cross-Domain Infant Cry Classification

    Feb 24, 2026Niloofar Jazaeri, Hilmi R. Dajani, Marco Janeczek +1Audio ClassificationEnsemble Learning

    University of Ottawa, Ottawa, Canada · Crynostics Inc., Canada

  16. Fairness-Aware Partial-label Domain Adaptation for Voice Classification of Parkinson's and ALS

    Feb 20, 2026Arianna Francesconi, Zhixiang Dai, Arthur Stefano Moscheni +7Parkinson's Disease Detection from SpeechDomain Adaptation

    School of Computer and Communication Sciences, EPFL (École polytechnique fédérale de Lausanne), Lausanne, Switzerland · Unit of Artificial Intelligence and Computer Systems, Università Campus Bio-Medico di Roma, Rome, Italy · Eustema S.p.A., Research and Development Centre, Naples, Italy +2

  17. Investigating Target Class Influence on Neural Network Compressibility for Energy-Autonomous Avian Monitoring

    Feb 19, 2026Nina Brolich, Simon Geis, Maximilian Kasper +3Bird Vocalization ClassificationEnergy-Efficient ML

    Fraunhofer Institute for Integrated Circuits IIS, Germany · Fachhochschule Erfurt, Germany · Universität Erfurt, Germany +2

  18. Detection and Classification of Cetacean Echolocation Clicks using Image-based Object Detection Methods applied to Advanced Wavelet-based Transformations

    Feb 19, 2026Christopher HauerSound Event DetectionBioacoustics

  19. Hardware-accelerated graph neural networks: an alternative approach for neuromorphic event-based audio classification and keyword spotting on SoC FPGA

    Feb 18, 2026Kamil Jeziorek, Piotr Wzorek, Krzysztof Blachut +6Audio ClassificationKeyword Spotting

    The AGH University of Krakow, Poland · Graduate School of Science and Technology, Keio University, Japan · CEA-List, Université Grenoble Alpes, France

  20. Embryonic Exposure to VPA Influences Chick Vocalisations: A Computational Study

    Jan 18, 2026Antonella M. C. Torrisi, Inês Nolasco, Paola Sgadò +2Audio Classification

    Centre for Digital Music, Queen Mary University of London, London, UK · Centre for Mind/Brain Sciences, University of Trento, Rovereto, Italy · School of Biological and Behavioural Sciences, Centre for Brain and Behaviour, Queen Mary University of London, London, UK

  21. DHAuDS: A Dynamic and Heterogeneous Audio Benchmark for Test-Time Adaptation

    Nov 23, 2025Weichuang Shao, Iman Yi Liao, Tomas Henrique Bode Maul +1Test-Time AdaptationNeural Network Robustness

    School of Computer and Mathematical Sciences, University of Nottingham Malaysia, Semenyih, Malaysia

  22. BabyHuBERT: Multilingual Self-Supervised Learning for Segmenting Speakers in Child-Centered Long-Form Recordings

    Sep 18, 2025Théo Charlot, Tarek Kunze, Maxime Poli +3Speech Foundation ModelsSpeech Processing

    LSCP, DEC, ENS, EHESS, CNRS, PSL University, France · Laboratoire d’Informatique et Syst`emes, Universit´e Aix-Marseille, CNRS, France

  23. Scaling to Multimodal and Multichannel Heart Sound Classification with Synthetic and Augmented Biosignals

    Sep 15, 2025Milan Marocchi, Matthew Fynn, Kayapanda Mandana +1Synthetic Data AugmentationMultimodal Classification

    School of Electrical Engineering, Computing, and Mathematical Sciences (EECMS), Faculty of Science and Engineering, Curtin University, Bentley, WA 6102, Australia · Department of Cardiology, Fortis Healthcare, Kolkata, 7007107, West Bengal, India

  24. Localized time-frequency representation learning for bioacoustic classification in complex soundscapes

    Feb 19, 2025Simen Hexeberg, Mandar Chitre, Matthias Hoffmann-Kuhnt +1BioacousticsAudio Classification

    ARL, Tropical Marine Science Institute, National University of Singapore · Department of Electrical & Computer Engineering, National University of Singapore · National Parks Board, Singapore

  25. Classifying bioacoustic data without individual call annotations using temporal convolutional networks and feature extractors

    Oct 22, 2024Laia Garrobé Fonollosa, Douglas Gillespie, Lina Stankovic +2BioacousticsPassive Acoustic Monitoring

    Sea Mammal Research Unit, School of Biology, University of St. Andrews, KY16 9TH, St. Andrews, Scotland · Electrical and Electronic Engineering, University of Strathclyde, Montrose Street, Glasgow, G1 1XJ, Scotland · Electrical and Electronic Engineering, University of Strathclyde, George Street, Glasgow, G1 1XW, Scotland

  26. Topology-enhanced machine learning for speech signal processing

    Nov 26, 2023Pingyao Feng, Qingrui Qu, Haiyu Zhang +4Interpretable MLSpeech Processing

    Department of Mathematics, Southern University of Science and Technology, Shenzhen, China. · Department of Mathematics, North Carolina State University, Raleigh, NC, USA. · School of Intelligence Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China. +1

  27. Robust Wake-Up Word Detection by Two-stage Multi-resolution Ensembles

    Oct 17, 2023Fernando López, Jordi Luque, Carlos Segura +1Keyword SpottingEnsemble Learning

    Telefónica I+D, Digital Life Disruption Lab, Spain · Universidad Autónoma de Madrid · Telefónica I+D, Research, Spain