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We present a robust classification approach for avian vocalization in complex and diverse soundscapes, achieving second place in the BirdCLEF2021 challenge. We illustrate how to make full use of pre-trained convolutional neural networks, by…

Sound · Computer Science 2021-07-19 Christof Henkel , Pascal Pfeiffer , Philipp Singer

In this paper, we propose a method to improve sound classification performance by combining signal features, derived from the time-frequency spectrogram, with human perception. The method presented herein exploits an artificial neural…

Computer Vision and Pattern Recognition · Computer Science 2013-06-19 Mohammad Pourhomayoun , Peter Dugan , Marian Popescu , Denise Risch , Hal Lewis , Christopher Clark

One of the big restrictions in brain computer interface field is the very limited training samples, it is difficult to build a reliable and usable system with such limited data. Inspired by generative adversarial networks, we propose a…

Human-Computer Interaction · Computer Science 2018-12-31 Qiqi Zhang , Ying Liu

A novel approach of training data augmentation and domain adaptation is presented to support machine learning applications for cognitive radio. Machine learning provides effective tools to automate cognitive radio functionalities by…

Networking and Internet Architecture · Computer Science 2018-04-04 Kemal Davaslioglu , Yalin E. Sagduyu

One of the frontier issues that severely hamper the development of automatic snore sound classification (ASSC) associates to the lack of sufficient supervised training data. To cope with this problem, we propose a novel data augmentation…

Machine Learning · Computer Science 2019-04-01 Zixing Zhang , Jing Han , Kun Qian , Christoph Janott , Yanan Guo , Bjoern Schuller

Passive Acoustic Monitoring is a key tool for biodiversity conservation, but the large volumes of unsupervised audio it generates present major challenges for extracting meaningful information. Deep Learning offers promising solutions.…

There are growing implications surrounding generative AI in the speech domain that enable voice cloning and real-time voice conversion from one individual to another. This technology poses a significant ethical threat and could lead to…

Sound · Computer Science 2023-08-25 Jordan J. Bird , Ahmad Lotfi

Automated species identification and delimitation is challenging, particularly in rare and thus often scarcely sampled species, which do not allow sufficient discrimination of infraspecific versus interspecific variation. Typical problems…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Morris Klasen , Dirk Ahrens , Jonas Eberle , Volker Steinhage

Speech enhancement in hearing aids remains a difficult task in nonstationary acoustic environments, mainly because current signal processing algorithms rely on fixed, manually tuned parameters that cannot adapt in situ to different users or…

Data augmentation has proven to be effective in training neural networks. Recently, a method called RandAug was proposed, randomly selecting data augmentation techniques from a predefined search space. RandAug has demonstrated significant…

Medical audio classification remains challenging due to low signal-to-noise ratios, subtle discriminative features, and substantial intra-class variability, often compounded by class imbalance and limited training data. Synthetic data…

Sound · Computer Science 2026-02-04 David McShannon , Anthony Mella , Nicholas Dietrich

Automated bioacoustic analysis aids understanding and protection of both marine and terrestrial animals and their habitats across extensive spatiotemporal scales, and typically involves analyzing vast collections of acoustic data. With the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-22 Burooj Ghani , Tom Denton , Stefan Kahl , Holger Klinck

In this paper we propose a data augmentation method for time series with irregular sampling, Time-Conditional Generative Adversarial Network (T-CGAN). Our approach is based on Conditional Generative Adversarial Networks (CGAN), where the…

Machine Learning · Computer Science 2019-02-04 Giorgia Ramponi , Pavlos Protopapas , Marco Brambilla , Ryan Janssen

Due to the latest advances in technology, telescopes with significant sky coverage will produce millions of astronomical alerts per night that must be classified both rapidly and automatically. Currently, classification consists of…

Instrumentation and Methods for Astrophysics · Physics 2022-08-17 Germán García-Jara , Pavlos Protopapas , Pablo A. Estévez

Generative adversarial nets (GANs) have been remarkably successful at learning to sample from distributions specified by a given dataset, particularly if the given dataset is reasonably large compared to its dimensionality. However, given…

Machine Learning · Computer Science 2022-11-29 Tiantian Fang , Ruoyu Sun , Alex Schwing

Data augmentation as a technique can mitigate data scarcity in machine learning. However, owing to fundamental differences in wireless data structures, traditional data augmentation techniques may not be suitable for wireless data.…

Networking and Internet Architecture · Computer Science 2025-09-11 Jinbo Wen , Jiawen Kang , Dusit Niyato , Yang Zhang , Jiacheng Wang , Biplab Sikdar , Ping Zhang

Biodiversity monitoring using audio recordings is achievable at a truly global scale via large-scale deployment of inexpensive, unattended recording stations or by large-scale crowdsourcing using recording and species recognition on mobile…

Machine Learning · Statistics 2015-05-26 Timos Papadopoulos , Stephen Roberts , Kathy Willis

This project proposes the development of a comprehensive real-time biodiversity monitoring system that harnesses sound data through a network of acoustic sensors and advanced artificial intelligence algorithms. The system analyzes sound…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-18 Kumar Srinivas Bobba , Kartheeban K , Vamsi Krishna Sai , Dinesh Bugga , Vijaya Mani Surendra Bolla

In the ever-evolving landscape of social network advertising, the volume and accuracy of data play a critical role in the performance of predictive models. However, the development of robust predictive algorithms is often hampered by the…

Social and Information Networks · Computer Science 2024-11-13 Qikai Yang , Panfeng Li , Xinhe Xu , Zhicheng Ding , Wenjing Zhou , Yi Nian

The research in Environmental Sound Classification (ESC) has been progressively growing with the emergence of deep learning algorithms. However, data scarcity poses a major hurdle for any huge advance in this domain. Data augmentation…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-16 Aswathy Madhu , Suresh K