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Related papers: Activity-Guided Industrial Anomalous Sound Detecti…

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We have developed an unsupervised anomalous sound detection method for machine condition monitoring that utilizes an auxiliary task -- detecting when the target machine is active. First, we train a model that detects machine activity by…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-18 Tomoya Nishida , Kota Dohi , Takashi Endo , Masaaki Yamamoto , Yohei Kawaguchi

Machine anomalous sound detection (ASD) has emerged as one of the most promising applications in the Industrial Internet of Things (IIoT) due to its unprecedented efficacy in mitigating risks of malfunctions and promoting production…

Sound · Computer Science 2024-08-28 Anbai Jiang , Yuchen Shi , Pingyi Fan , Wei-Qiang Zhang , Jia Liu

Anomaly detection is the task of identifying rarely occurring (i.e. anormal or anomalous) samples that differ from almost all other samples in a dataset. As the patterns of anormal samples are usually not known a priori, this task is highly…

Applications · Statistics 2025-06-30 Nicolas Thewes , Philipp Steinhauer , Patrick Trampert , Markus Pauly , Georg Schneider

Anomalous sound detection (ASD) is, nowadays, one of the topical subjects in machine listening discipline. Unsupervised detection is attracting a lot of interest due to its immediate applicability in many fields. For example, related to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-30 Sergi Perez-Castanos , Javier Naranjo-Alcazar , Pedro Zuccarello , Maximo Cobos

This paper proposes an unsupervised anomalous sound detection method using sound separation. In factory environments, background noise and non-objective sounds obscure desired machine sounds, making it challenging to detect anomalous…

Sound · Computer Science 2023-05-26 Kanta Shimonishi , Kota Dohi , Yohei Kawaguchi

Speech activity detection (SAD), which often rests on the fact that the noise is "more" stationary than speech, is particularly challenging in non-stationary environments, because the time variance of the acoustic scene makes it difficult…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-29 Jens Heitkaemper , Joerg Schmalenstroeer , Reinhold Haeb-Umbach

Anomalous Sound Detection (ASD) aims at identifying anomalous sounds from machines and has gained extensive research interests from both academia and industry. However, the uncertainty of anomaly location and much redundant information such…

Sound · Computer Science 2025-08-22 Guirui Zhong , Qing Wang , Jun Du , Lei Wang , Mingqi Cai , Xin Fang

In this paper, we present the task description and discuss the results of the DCASE 2020 Challenge Task 2: Unsupervised Detection of Anomalous Sounds for Machine Condition Monitoring. The goal of anomalous sound detection (ASD) is to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-11 Yuma Koizumi , Yohei Kawaguchi , Keisuke Imoto , Toshiki Nakamura , Yuki Nikaido , Ryo Tanabe , Harsh Purohit , Kaori Suefusa , Takashi Endo , Masahiro Yasuda , Noboru Harada

Unsupervised anomalous sound detection (ASD) aims to identify anomalous sounds by learning the features of normal operational sounds and sensing their deviations. Recent approaches have focused on the self-supervised task utilizing the…

Sound · Computer Science 2023-10-11 Soonhyeon Choi , Jung-Woo Choi

Unsupervised Anomalous Sound Detection (ASD) aims to design a generalizable method that can be used to detect anomalies when only normal sounds are given. In this paper, Anomalous Sound Detection based on Diffusion Models (ASD-Diffusion) is…

Sound · Computer Science 2024-09-25 Fengrun Zhang , Xiang Xie , Kai Guo

First-shot (FS) unsupervised anomalous sound detection (ASD) is a brand-new task introduced in DCASE 2023 Challenge Task 2, where the anomalous sounds for the target machine types are unseen in training. Existing methods often rely on the…

Sound · Computer Science 2024-03-12 Hejing Zhang , Qiaoxi Zhu , Jian Guan , Haohe Liu , Feiyang Xiao , Jiantong Tian , Xinhao Mei , Xubo Liu , Wenwu Wang

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 proposes a framework of explaining anomalous machine sounds in the context of anomalous sound detection~(ASD). While ASD has been extensively explored, identifying how anomalous sounds differ from normal sounds is also beneficial…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-30 Tomoya Nishida , Harsh Purohit , Kota Dohi , Takashi Endo , Yohei Kawaguchi

Anomalous sound detection (ASD) is one of the most significant tasks of mechanical equipment monitoring and maintaining in complex industrial systems. In practice, it is vital to precisely identify abnormal status of the working mechanical…

Mainstream unsupervised anomaly detection algorithms often excel in academic datasets, yet their real-world performance is restricted due to the controlled experimental conditions involving clean training data. Addressing the challenge of…

Machine Learning · Computer Science 2025-05-13 Thi Kieu Khanh Ho , Narges Armanfard

This paper addresses the issue of active speaker detection (ASD) in noisy environments and formulates a robust active speaker detection (rASD) problem. Existing ASD approaches leverage both audio and visual modalities, but non-speech sounds…

Multimedia · Computer Science 2024-04-02 Siva Sai Nagender Vasireddy , Chenxu Zhang , Xiaohu Guo , Yapeng Tian

This paper introduces an active learning (AL) framework for anomalous sound detection (ASD) in machine condition monitoring system. Typically, ASD models are trained solely on normal samples due to the scarcity of anomalous data, leading to…

Sound · Computer Science 2024-08-13 Tuan Vu Ho , Kota Dohi , Yohei Kawaguchi

Anomalous sound detection (ASD) is the task of identifying whether the sound emitted from an object is normal or anomalous. In some cases, early detection of this anomaly can prevent several problems. This article presents a Systematic…

Sound · Computer Science 2021-02-17 Eduardo C. Nunes

We present a novel, simple and widely applicable semi-supervised procedure for anomaly detection in industrial and IoT environments, SAnD (Simple Anomaly Detection). SAnD comprises 5 steps, each leveraging well-known statistical tools,…

Machine Learning · Computer Science 2024-04-30 Simone Tonini , Andrea Vandin , Francesca Chiaromonte , Daniele Licari , Fernando Barsacchi

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…

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