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The goal of the acoustic scene classification (ASC) task is to classify recordings into one of the predefined acoustic scene classes. However, in real-world scenarios, ASC systems often encounter challenges such as recording device…

In this paper, we present a deep neural network (DNN)-based acoustic scene classification framework. Two hierarchical learning methods are proposed to improve the DNN baseline performance by incorporating the hierarchical taxonomy…

Sound · Computer Science 2016-08-16 Yong Xu , Qiang Huang , Wenwu Wang , Mark D. Plumbley

Machine learning algorithms, when trained on audio recordings from a limited set of devices, may not generalize well to samples recorded using other devices with different frequency responses. In this work, a relatively straightforward…

Sound · Computer Science 2021-05-26 Michał Kośmider

We present the task description of the Detection and Classification of Acoustic Scenes and Events (DCASE) 2024 Challenge Task 2: First-shot unsupervised anomalous sound detection (ASD) for machine condition monitoring. Continuing from last…

This report presents a dual-level knowledge distillation framework with multi-teacher guidance for low-complexity acoustic scene classification (ASC) in DCASE2025 Task 1. We propose a distillation strategy that jointly transfers both soft…

Sound · Computer Science 2025-07-29 Haowen Li , Ziyi Yang , Mou Wang , Ee-Leng Tan , Junwei Yeow , Santi Peksi , Woon-Seng Gan

It is a practical research topic how to deal with multi-device audio inputs by a single acoustic scene classification system with efficient design. In this work, we propose Residual Normalization, a novel feature normalization method that…

Sound · Computer Science 2021-11-15 Byeonggeun Kim , Seunghan Yang , Jangho Kim , Simyung Chang

Previous DCASE challenges contributed to an increase in the performance of acoustic scene classification systems. State-of-the-art classifiers demand significant processing capabilities and memory which is challenging for…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-10 Nagashree K. S. Rao , Nils Peters

This paper describes an acoustic scene classification method which achieved the 4th ranking result in the IEEE AASP challenge of Detection and Classification of Acoustic Scenes and Events 2016. In order to accomplish the ensuing task,…

Sound · Computer Science 2018-07-16 Sangwook Park , Seongkyu Mun , Younglo Lee , David K. Han , Hanseok Ko

In this technique report, we present a bunch of methods for the task 4 of Detection and Classification of Acoustic Scenes and Events 2017 (DCASE2017) challenge. This task evaluates systems for the large-scale detection of sound events using…

Sound · Computer Science 2017-11-28 Yong Xu , Qiuqiang Kong , Wenwu Wang , Mark D. Plumbley

To improve device robustness, a highly desirable key feature of a competitive data-driven acoustic scene classification (ASC) system, a novel two-stage system based on fully convolutional neural networks (CNNs) is proposed. Our two-stage…

Acoustic scene recordings are represented by different types of handcrafted or Neural Network-derived features. These features, typically of thousands of dimensions, are classified in state of the art approaches using kernel machines, such…

Sound · Computer Science 2018-01-10 Abelino Jimenez , Benjamin Elizalde , Bhiksha Raj

This paper introduces the task description for the Detection and Classification of Acoustic Scenes and Events (DCASE) 2025 Challenge Task 2, titled "First-shot unsupervised anomalous sound detection (ASD) for machine condition monitoring".…

This technical report outlines our approach to Task 3A of the Detection and Classification of Acoustic Scenes and Events (DCASE) 2024, focusing on Sound Event Localization and Detection (SELD). SELD provides valuable insights by estimating…

Sound · Computer Science 2025-07-25 Quoc Thinh Vo , David Han

Acoustic Scene Classification (ASC) identifies an environment based on an audio signal. This paper explores ASC in low-resource conditions and proposes a novel model, DS-FlexiNet, which combines depthwise separable convolutions from…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-29 Zhi Chen , Yun-Fei Shao , Yong Ma , Mingsheng Wei , Le Zhang , Wei-Qiang Zhang

Few-shot audio event detection is a task that detects the occurrence time of a novel sound class given a few examples. In this work, we propose a system based on segment-level metric learning for the DCASE 2022 challenge of few-shot…

Sound · Computer Science 2022-07-22 Haohe Liu , Xubo Liu , Xinhao Mei , Qiuqiang Kong , Wenwu Wang , Mark D. Plumbley

This paper presents DCASE 2018 task 4. The task evaluates systems for the large-scale detection of sound events using weakly labeled data (without time boundaries). The target of the systems is to provide not only the event class but also…

Sound · Computer Science 2018-07-30 Romain Serizel , Nicolas Turpault , Hamid Eghbal-Zadeh , Ankit Parag Shah

To advance immersive communication, the Detection and Classification of Acoustic Scenes and Events (DCASE) 2025 Challenge recently introduced Task 4 on Spatial Semantic Segmentation of Sound Scenes (S5). An S5 system takes a multi-channel…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-02 Binh Thien Nguyen , Masahiro Yasuda , Daiki Takeuchi , Daisuke Niizumi , Noboru Harada

In this paper, we describe in detail our system for DCASE 2022 Task4. The system combines two considerably different models: an end-to-end Sound Event Detection Transformer (SEDT) and a frame-wise model, Metric Learning and Focal Loss CNN…

Deep Neural Networks are known to be very demanding in terms of computing and memory requirements. Due to the ever increasing use of embedded systems and mobile devices with a limited resource budget, designing low-complexity models without…

Machine Learning · Computer Science 2020-11-06 Khaled Koutini , Florian Henkel , Hamid Eghbal-zadeh , Gerhard Widmer

This paper introduces briefly the history and growth of the Detection and Classification of Acoustic Scenes and Events (DCASE) challenge, workshop, research area and research community. Created in 2013 as a data evaluation challenge, DCASE…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-08 Annamaria Mesaros , Romain Serizel , Toni Heittola , Tuomas Virtanen , Mark D. Plumbley