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Traditional fault diagnosis methods struggle to handle fault data, with complex data characteristics such as high dimensions and large noise. Deep learning is a promising solution, which typically works well only when labeled fault data are…

Machine Learning · Computer Science 2025-03-13 Dandan Zhao , Hongpeng Yin , Jintang Bian , Han Zhou

In recent Text-to-Speech (TTS) systems, a neural vocoder often generates speech samples by solely conditioning on acoustic features predicted from an acoustic model. However, there are always distortions existing in the predicted acoustic…

Sound · Computer Science 2023-04-25 Jianzong Wang , Xulong Zhang , Haobin Tang , Aolan Sun , Ning Cheng , Jing Xiao

Inspired by the recent progress in self-supervised learning for computer vision, in this paper we introduce DeLoRes, a new general-purpose audio representation learning approach. Our main objective is to make our network learn…

Sound · Computer Science 2022-06-28 Sreyan Ghosh , Ashish Seth , and Deepak Mittal , Maneesh Singh , S. Umesh

We introduce a novel algorithm for nonlinear processing of data gathered by an active array of sensors which probes a medium with pulses and measures the resulting waves. The algorithm is motivated by the application of array imaging. We…

Numerical Analysis · Mathematics 2019-02-20 Liliana Borcea , Vladimir Druskin , Alexander V. Mamonov , Mikhail Zaslavsky

Audio deepfake detection has become increasingly challenging due to rapid advances in speech synthesis and voice conversion technologies, particularly under channel distortions, replay attacks, and real-world recording conditions. This…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-13 K. A. Shahriar

Deep learning has boosted the performance of many music information retrieval (MIR) systems in recent years. Yet, the complex hierarchical arrangement of music makes end-to-end learning hard for some MIR tasks - a very deep and flexible…

Sound · Computer Science 2018-12-11 Anders Elowsson

Probabilistic Linear Discriminant Analysis (PLDA) is a popular tool in open-set classification/verification tasks. However, the Gaussian assumption underlying PLDA prevents it from being applied to situations where the data is clearly…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-26 Lantian Li , Dong Wang , Thomas Fang Zheng

Submodular functions, crucial for various applications, often lack practical learning methods for their acquisition. Seemingly unrelated, learning a scaling from oracles offering graded pairwise preferences (GPC) is underexplored, despite a…

Machine Learning · Computer Science 2024-11-04 Gantavya Bhatt , Arnav Das , Jeff Bilmes

Distortion resulting from acoustic echo suppression (AES) is a common issue in full-duplex communication. To address the distortion problem, a multi-frame minimum variance distortionless response (MFMVDR) filtering technique is proposed.…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-10 Yuefeng Tsai , Yicheng Hsu , Mingsian Bai

This paper investigates the problem of dim frequency line detection and recovery in the so-called lofargram. Theoretically, time integration long enough can always enhance the detection characteristic. But this does not hold for irregularly…

Signal Processing · Electrical Eng. & Systems 2020-12-02 Yina Han , Yuyan Li , Qingyu Liu , Yuanliang Ma

In this work, we use deep unfolding to view cascaded non-linear RF systems as model-based neural networks. This view enables the direct use of a wide range of neural network tools and optimizers to efficiently identify such cascaded models.…

Signal Processing · Electrical Eng. & Systems 2020-06-02 Andreas Toftegaard Kristensen , Andreas Burg , Alexios Balatsoukas-Stimming

This work presents dense stereo reconstruction using high-resolution images for infrastructure inspections. The state-of-the-art stereo reconstruction methods, both learning and non-learning ones, consume too much computational resource on…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Yaoyu Hu , Weikun Zhen , Sebastian Scherer

In recent years, large convolutional neural networks have been widely used as tools for image deblurring, because of their ability in restoring images very precisely. It is well known that image deblurring is mathematically modeled as an…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Davide Evangelista , Elena Morotti , Elena Loli Piccolomini , James Nagy

Nonlinear system identification is important with a wide range of applications. The typical approaches for nonlinear system identification include Volterra series models, nonlinear autoregressive with exogenous inputs models,…

Systems and Control · Electrical Eng. & Systems 2019-11-28 Hongpeng Zhou , Chahine Ibrahim , Wei Pan

To phased microphone array for sound source localization, algorithm with both high computational efficiency and high precision is a persistent pursuit. In this paper convolutional neural network (CNN) a kind of deep learning is…

Audio and Speech Processing · Electrical Eng. & Systems 2018-02-14 Wei Ma , Xun Liu

Multi-channel acoustic signal processing is a well-established and powerful tool to exploit the spatial diversity between a target signal and non-target or noise sources for signal enhancement. However, the textbook solutions for optimal…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-14 Reinhold Haeb-Umbach , Tomohiro Nakatani , Marc Delcroix , Christoph Boeddeker , Tsubasa Ochiai

Anomaly detection is to identify samples that do not conform to the distribution of the normal data. Due to the unavailability of anomalous data, training a supervised deep neural network is a cumbersome task. As such, unsupervised methods…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Vahid Reza Khazaie , Anthony Wong , John Taylor Jewell , Yalda Mohsenzadeh

Power Delay Profile (PDP) plays a crucial role in wireless communications, providing information on multipath propagation and signal strength variations over time. Accurate detection of peaks within PDP is essential to identify dominant…

Signal Processing · Electrical Eng. & Systems 2026-03-23 Ondrej Zeleny , Radek Zavorka , Ales Prokes , Tomas Fryza , Jaroslaw Wojtun , Jan M. Kelner , Cezary Ziolkowski , Aniruddha Chandra

In this study, we conduct a comparative analysis of deep learning-based noise reduction methods in low signal-to-noise ratio (SNR) scenarios. Our investigation primarily focuses on five key aspects: The impact of training data, the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-28 Shrishti Saha Shetu , Emanuël A. P. Habets , Andreas Brendel

We present a simple, efficient "direct learning" approach to train Volterra series-based digital pre-distortion filters using neural networks. We show its superior performance over conventional training methods using a 64-QAM 64-GBaud…

Signal Processing · Electrical Eng. & Systems 2021-12-14 Vinod Bajaj , Mathieu Chagnon , Sander Wahls , Vahid Aref