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This study reports an unintuitive finding that positional encoding enhances learning of recurrent neural networks (RNNs). Positional encoding is a high-dimensional representation of time indices on input data. Most famously, positional…

Machine Learning · Computer Science 2024-11-28 Takashi Morita

Ambisonics is a scene-based spatial audio format that has several useful features compared to object-based formats, such as efficient whole scene rotation and versatility. However, it does not provide direct access to the individual source…

Sound · Computer Science 2023-06-21 Francesc Lluís , Nils Meyer-Kahlen , Vasileios Chatziioannou , Alex Hofmann

Speech enhancement is a fundamental challenge in signal processing, particularly when robustness is required across diverse acoustic conditions and microphone setups. Deep learning methods have been successful for speech enhancement, but…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-28 Yuval Bar Ilan , Boaz Rafaely , Vladimir Tourbabin

Countless learning tasks require dealing with sequential data. Image captioning, speech synthesis, and music generation all require that a model produce outputs that are sequences. In other domains, such as time series prediction, video…

Machine Learning · Computer Science 2015-10-20 Zachary C. Lipton , John Berkowitz , Charles Elkan

In recent years, the introduction of neural networks (NNs) into the field of speech enhancement has brought significant improvements. However, many of the proposed methods are quite demanding in terms of computational complexity and memory…

Audio and Speech Processing · Electrical Eng. & Systems 2024-04-19 Ernst Seidel , Pejman Mowlaee , Tim Fingscheidt

Audio-visual speech enhancement system is regarded to be one of promising solutions for isolating and enhancing speech of desired speaker. Conventional methods focus on predicting clean speech spectrum via a naive convolution neural network…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-28 Xinmeng Xu , Jianjun Hao

Recently, the Spherical Wavelet Framework (SWF) was proposed to combine the benefits of Ambisonics and Object-Based Audio (OBA) by utilising highly localised basis functions. SWF can enhance the sweet-spot area and reduce localisation blur…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-28 Ş. Ekmen , H. Lee

Continuous attractor networks (CANs) are widely used to model how the brain temporarily retains continuous behavioural variables via persistent recurrent activity, such as an animal's position in an environment. However, this memory…

Neural and Evolutionary Computing · Computer Science 2025-07-02 Madison Cotteret , Christopher J. Kymn , Hugh Greatorex , Martin Ziegler , Elisabetta Chicca , Friedrich T. Sommer

We present a novel high frequency residual learning framework, which leads to a highly efficient multi-scale network (MSNet) architecture for mobile and embedded vision problems. The architecture utilizes two networks: a low resolution…

Computer Vision and Pattern Recognition · Computer Science 2019-05-08 Bowen Cheng , Rong Xiao , Jianfeng Wang , Thomas Huang , Lei Zhang

This paper explores the integration of model-based and data-driven approaches within the realm of neural speech and audio coding systems. It highlights the challenges posed by the subjective evaluation processes of speech and audio codecs…

Sound · Computer Science 2025-01-08 Minje Kim , Jan Skoglund

Sound field decomposition predicts waveforms in arbitrary directions using signals from a limited number of microphones as inputs. Sound field decomposition is fundamental to downstream tasks, including source localization, source…

Sound · Computer Science 2022-10-25 Qiuqiang Kong , Shilei Liu , Junjie Shi , Xuzhou Ye , Yin Cao , Qiaoxi Zhu , Yong Xu , Yuxuan Wang

This work investigates whether modern speech models are sensitive to prosodic emphasis - whether they encode emphasized and neutral words in systematically different ways. Prior work typically relies on isolated acoustic correlates (e.g.,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-18 Shaun Cassini , Thomas Hain , Anton Ragni

Understanding brain function, constructing computational models and engineering neural prosthetics require assessing two problems, namely encoding and decoding, but their relation remains controversial. For decades, the encoding problem has…

Neurons and Cognition · Quantitative Biology 2017-01-16 Hugo Gabriel Eyherabide

The popular frameworks for self-supervised learning of speech representations have largely focused on frame-level masked prediction of speech regions. While this has shown promising downstream task performance for speech recognition and…

Computation and Language · Computer Science 2025-07-22 Varun Krishna , Sriram Ganapathy

We propose an end-to-end model based on convolutional and recurrent neural networks for speech enhancement. Our model is purely data-driven and does not make any assumptions about the type or the stationarity of the noise. In contrast to…

Sound · Computer Science 2018-05-03 Han Zhao , Shuayb Zarar , Ivan Tashev , Chin-Hui Lee

We argue that training autoencoders to reconstruct inputs from noised versions of their encodings, when combined with perceptual losses, yields encodings that are structured according to a perceptual hierarchy. We demonstrate the emergence…

Sound · Computer Science 2025-11-11 Mathias Rose Bjare , Giorgia Cantisani , Marco Pasini , Stefan Lattner , Gerhard Widmer

Attention-based recurrent neural encoder-decoder models present an elegant solution to the automatic speech recognition problem. This approach folds the acoustic model, pronunciation model, and language model into a single network and…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-08 Shubham Toshniwal , Anjuli Kannan , Chung-Cheng Chiu , Yonghui Wu , Tara N Sainath , Karen Livescu

Precise audio-visual synchronization in speech videos is crucial for content quality and viewer comprehension. Existing methods have made significant strides in addressing this challenge through rule-based approaches and end-to-end learning…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Tao Feng , Yifan Xie , Xun Guan , Jiyuan Song , Zhou Liu , Fei Ma , Fei Yu

Error correction codes are a crucial part of the physical communication layer, ensuring the reliable transfer of data over noisy channels. The design of optimal linear block codes capable of being efficiently decoded is of major concern,…

Information Theory · Computer Science 2024-05-08 Yoni Choukroun , Lior Wolf

Eliminating the negative effect of non-stationary environmental noise is a long-standing research topic for automatic speech recognition that stills remains an important challenge. Data-driven supervised approaches, including ones based on…