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Self-supervised learning (SSL) models offer powerful representations for sound event detection (SED), yet their synergistic potential remains underexplored. This study systematically evaluates state-of-the-art SSL models to guide optimal…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-27 Hanfang Cui , Longfei Song , Li Li , Dongxing Xu , Yanhua Long

Artificial sound event detection (SED) has the aim to mimic the human ability to perceive and understand what is happening in the surroundings. Nowadays, Deep Learning offers valuable techniques for this goal such as Convolutional Neural…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-26 Fabio Vesperini , Leonardo Gabrielli , Emanuele Principi , Stefano Squartini

In this technical report, the systems we submitted for subtask 4 of the DCASE 2021 challenge, regarding sound event detection, are described in detail. These models are closely related to the baseline provided for this problem, as they are…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-20 Wim Boes , Hugo Van hamme

This report proposes a polyphonic sound event detection (SED) method for the DCASE 2020 Challenge Task 4. The proposed SED method is based on semi-supervised learning to deal with the different combination of training datasets such as…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-03 Nam Kyun Kim , Hong Kook Kim

This paper describes that semi-supervised learning called peer collaborative learning (PCL) can be applied to the polyphonic sound event detection (PSED) task, which is one of the tasks in the Detection and Classification of Acoustic Scenes…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-31 Hayato Endo , Hiromitsu Nishizaki

Sound Event Detection (SED) plays a vital role in comprehending and perceiving acoustic scenes. Previous methods have demonstrated impressive capabilities. However, they are deficient in learning features of complex scenes from…

Sound · Computer Science 2024-09-12 Zehao Wang , Haobo Yue , Zhicheng Zhang , Da Mu , Jin Tang , Jianqin Yin

This work describes and discusses an algorithm submitted to the Sound Event Localization and Detection Task of DCASE2019 Challenge. The proposed methodology relies on parametric spatial audio analysis for source localization and detection,…

Sound · Computer Science 2019-08-28 Andres Perez-Lopez , Eduardo Fonseca , Xavier Serra

Deep learning-based single-channel speaker separation has improved significantly in recent years largely due to the introduction of the transformer-based attention mechanism. However, these improvements come at the expense of intense…

In sound event detection (SED), overlapping sound events pose a significant challenge, as certain events can be easily masked by background noise or other events, resulting in poor detection performance. To address this issue, we propose…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-13 Han Yin , Jisheng Bai , Yang Xiao , Hui Wang , Siqi Zheng , Yafeng Chen , Rohan Kumar Das , Chong Deng , Jianfeng Chen

Sound event localization and detection (SELD) is critical for various real-world applications, including smart monitoring and Internet of Things (IoT) systems. Although deep neural networks (DNNs) represent the state-of-the-art approach for…

Signal Processing · Electrical Eng. & Systems 2024-09-19 Jun Wei Yeow , Ee-Leng Tan , Jisheng Bai , Santi Peksi , Woon-Seng Gan

Sound event detection (SED) and Acoustic scene classification (ASC) are two widely researched audio tasks that constitute an important part of research on acoustic scene analysis. Considering shared information between sound events and…

Sound · Computer Science 2022-09-14 Daniel Aleksander Krause , Annamaria Mesaros

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…

This paper proposes an active learning system for sound event detection (SED). It aims at maximizing the accuracy of a learned SED model with limited annotation effort. The proposed system analyzes an initially unlabeled audio dataset, from…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-10 Shuyang Zhao , Toni Heittola , Tuomas Virtanen

In this paper, we address the challenges in automatic sleep stage classification, particularly the high computational cost, inadequate modeling of bidirectional temporal dependencies, and class imbalance issues faced by Transformer-based…

Signal Processing · Electrical Eng. & Systems 2024-11-22 Xinliang Zhou , Yuzhe Han , Zhisheng Chen , Chenyu Liu , Yi Ding , Ziyu Jia , Yang Liu

Fake artefacts for discriminating between bonafide and fake audio can exist in both short- and long-range segments. Therefore, combining local and global feature information can effectively discriminate between bonafide and fake audio. This…

Biological signals, such as electroencephalograms (EEGs) and electrocardiograms (ECGs), play a pivotal role in numerous clinical practices, such as diagnosing brain and cardiac arrhythmic diseases. Existing methods for biosignal…

Machine Learning · Computer Science 2025-03-26 Jian Qian , Teck Lun Goh , Bingyu Xie , Chengyao Zhu , Biao Wan , Yawen Guan , Rachel Ding Chen , Patrick Yin Chiang

Wearable audio devices with active noise control (ANC) enhance listening comfort but often at the expense of situational awareness. However, this auditory isolation may mask crucial environmental cues, posing significant safety risks. To…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-09 Jun-Wei Yeow , Ee-Leng Tan , Santi Peksi , Zhen-Ting Ong , Woon-Seng Gan

A central problem in building effective sound event detection systems is the lack of high-quality, strongly annotated sound event datasets. For this reason, Task 4 of the DCASE 2024 challenge proposes learning from two heterogeneous…

Audio and Speech Processing · Electrical Eng. & Systems 2024-07-19 Florian Schmid , Paul Primus , Tobias Morocutti , Jonathan Greif , Gerhard Widmer

Sound event detection systems typically consist of two stages: extracting hand-crafted features from the raw audio waveform, and learning a mapping between these features and the target sound events using a classifier. Recently, the focus…

Sound · Computer Science 2018-05-11 Emre Çakır , Tuomas Virtanen

In multichannel speech enhancement, effectively capturing spatial and spectral information across different microphones is crucial for noise reduction. Traditional methods, such as CNN or LSTM, attempt to model the temporal dynamics of…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-15 Wenze Ren , Haibin Wu , Yi-Cheng Lin , Xuanjun Chen , Rong Chao , Kuo-Hsuan Hung , You-Jin Li , Wen-Yuan Ting , Hsin-Min Wang , Yu Tsao