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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

In this technical report, we describe our submission for Task 1, Low-Complexity Device-Robust Acoustic Scene Classification, of the DCASE 2025 Challenge. Our work tackles the dual challenges of strict complexity constraints and robust…

Sound · Computer Science 2025-09-12 Seung Gyu Jeong , Seong Eun Kim

In this paper, we present deep learning frameworks for audio-visual scene classification (SC) and indicate how individual visual and audio features as well as their combination affect SC performance. Our extensive experiments, which are…

Sound · Computer Science 2021-06-17 Lam Pham , Alexander Schindler , Mina Schütz , Jasmin Lampert , Sven Schlarb , Ross King

We present the task description of the Detection and Classification of Acoustic Scenes and Events (DCASE) 2023 Challenge Task 2: ``First-shot unsupervised anomalous sound detection (ASD) for machine condition monitoring''. The main goal is…

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".…

The majority of sound scene analysis work focuses on one of two clearly defined tasks: acoustic scene classification or sound event detection. Whilst this separation of tasks is useful for problem definition, they inherently ignore some…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-30 Helen L. Bear , Toni Heittola , Annamaria Mesaros , Emmanouil Benetos , Tuomas Virtanen

We present the task description and discussion on the results of the DCASE 2021 Challenge Task 2. In 2020, we organized an unsupervised anomalous sound detection (ASD) task, identifying whether a given sound was normal or anomalous without…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-28 Yohei Kawaguchi , Keisuke Imoto , Yuma Koizumi , Noboru Harada , Daisuke Niizumi , Kota Dohi , Ryo Tanabe , Harsh Purohit , Takashi Endo

Few-shot bioacoustic event detection consists in detecting sound events of specified types, in varying soundscapes, while having access to only a few examples of the class of interest. This task ran as part of the DCASE challenge for the…

In this report, the Brno University of Technology (BUT) team submissions for Task 1 (Acoustic Scene Classification, ASC) of the DCASE-2019 challenge are described. Also, the analysis of different methods is provided. The proposed approach…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-17 Hossein Zeinali , Lukáš Burget , Jan "Honza'' Černocký

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

Acoustic Scene Classification (ASC) aims to classify the environment in which the audio signals are recorded. Recently, Convolutional Neural Networks (CNNs) have been successfully applied to ASC. However, the data distributions of the audio…

Sound · Computer Science 2020-11-19 Zhao Ren , Qiuqiang Kong , Jing Han , Mark D. Plumbley , Björn W. Schuller

In this paper, we present an acoustic scene classification framework based on a large-margin factorized convolutional neural network (CNN). We adopt the factorized CNN to learn the patterns in the time-frequency domain by factorizing the 2D…

Sound · Computer Science 2019-10-16 Janghoon Cho , Sungrack Yun , Hyoungwoo Park , Jungyun Eum , Kyuwoong Hwang

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

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

We describe in this report our audio scene recognition system submitted to the DCASE 2016 challenge. Firstly, given the label set of the scenes, a label tree is automatically constructed. This category taxonomy is then used in the feature…

Neural and Evolutionary Computing · Computer Science 2016-08-16 Huy Phan , Lars Hertel , Marco Maass , Philipp Koch , Alfred Mertins

In this work, we compare the performance of three selected techniques in open set acoustic scenes classification (ASC). We test thresholding of the softmax output of a deep network classifier, which is the most popular technique nowadays…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-18 Zuzanna Kwiatkowska , Beniamin Kalinowski , Michał Kośmider , Krzysztof Rykaczewski

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

Acoustic Scene Classification (ASC) is a challenging task, as a single scene may involve multiple events that contain complex sound patterns. For example, a cooking scene may contain several sound sources including silverware clinking,…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-20 Weimin Wang , Weiran Wang , Ming Sun , Chao Wang

This report presents our audio event detection system submitted for Task 2, "Detection of rare sound events", of DCASE 2017 challenge. The proposed system is based on convolutional neural networks (CNNs) and deep neural networks (DNNs)…

Sound · Computer Science 2017-10-19 Huy Phan , Martin Krawczyk-Becker , Timo Gerkmann , Alfred Mertins

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