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In this paper, we introduce spatial attention for refining the information in multi-direction neural beamformer for far-field automatic speech recognition. Previous approaches of neural beamformers with multiple look directions, such as the…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-10 Weipeng He , Lu Lu , Biqiao Zhang , Jay Mahadeokar , Kaustubh Kalgaonkar , Christian Fuegen

Functional magnetic resonance imaging produces high dimensional data, with a less then ideal number of labelled samples for brain decoding tasks (predicting brain states). In this study, we propose a new deep temporal convolutional neural…

Machine Learning · Computer Science 2015-01-13 Orhan Firat , Emre Aksan , Ilke Oztekin , Fatos T. Yarman Vural

Monaural speech enhancement (SE) provides a versatile and cost-effective approach to SE tasks by utilizing recordings from a single microphone. However, the monaural SE lags performance behind multi-channel SE as the monaural SE methods are…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-05 Xinmeng Xu , Weiping Tu , Yuhong Yang

This work introduces a feature extracted from stereophonic/binaural audio signals aiming to represent a measure of perceived quality degradation in processed spatial auditory scenes. The feature extraction technique is based on a simplified…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-06 Pablo M. Delgado , Jürgen Herre

Self-supervised learning has achieved remarkable success in learning visual representations from clean data, yet remains challenging when clean observations are sparse or not available at all. In this paper, we demonstrate that pretrained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Konstantinos Alexis , Giorgos Giannopoulos , Dimitrios Gunopulos

In this work, we try to answer two questions: Can deeply learned features with discriminative power benefit an ASR system's robustness to acoustic variability? And how to learn them without requiring framewise labelled sequence training…

Machine Learning · Computer Science 2019-05-17 Jun Wang , Dan Su , Jie Chen , Shulin Feng , Dongpeng Ma , Na Li , Dong Yu

Disentangled representation learning offers useful properties such as dimension reduction and interpretability, which are essential to modern deep learning approaches. Although deep learning techniques have been widely applied to…

Machine Learning · Computer Science 2022-04-11 Sichen Zhao , Wei Shao , Jeffrey Chan , Flora D. Salim

As an important component of multimedia analysis tasks, audio classification aims to discriminate between different audio signal types and has received intensive attention due to its wide applications. Generally speaking, the raw signal can…

Multimedia · Computer Science 2020-02-25 Liang Gao , Kele Xu , Huaimin Wang , Yuxing Peng

Self-supervised learning (SSL) algorithms have emerged as powerful tools that can leverage large quantities of unlabeled audio data to pre-train robust representations that support strong performance on diverse downstream tasks. Up to now…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-05 Mattson Ogg

Internal representations are crucial for understanding deep neural networks, such as their properties and reasoning patterns, but remain difficult to interpret. While mapping from feature space to input space aids in interpreting the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Nils Neukirch , Johanna Vielhaben , Nils Strodthoff

Self-supervised speech representation learning enables the extraction of meaningful features from raw waveforms. These features can then be efficiently used across multiple downstream tasks. However, two significant issues arise when…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-14 Heitor R. Guimarães , Arthur Pimentel , Anderson R. Avila , Mehdi Rezagholizadeh , Boxing Chen , Tiago H. Falk

Neural network-based speaker recognition has achieved significant improvement in recent years. A robust speaker representation learns meaningful knowledge from both hard and easy samples in the training set to achieve good performance.…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-31 Ruijie Tao , Kong Aik Lee , Zhan Shi , Haizhou Li

Methods for extracting audio and speech features have been studied since pioneering work on spectrum analysis decades ago. Recent efforts are guided by the ambition to develop general-purpose audio representations. For example, deep neural…

Supervised learning based methods for source localization, being data driven, can be adapted to different acoustic conditions via training and have been shown to be robust to adverse acoustic environments. In this paper, a convolutional…

Audio and Speech Processing · Electrical Eng. & Systems 2019-05-22 Soumitro Chakrabarty , Emanuël A. P. Habets

Latent representation learned from multi-layered neural networks via hierarchical feature abstraction enables recent success of deep learning. Under the deep learning framework, generalization performance highly depends on the learned…

Machine Learning · Computer Science 2016-11-07 Hyo-Eun Kim , Sangheum Hwang , Kyunghyun Cho

Deep neural networks have achieved impressive performance across a wide range of tasks, but this success often comes with substantial computational and storage costs due to large-scale training data. Dataset distillation addresses this…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Mingzhuo Li , Guang Li , Linfeng Ye , Jiafeng Mao , Takahiro Ogawa , Konstantinos N. Plataniotis , Miki Haseyama

Recognition of speech, and in particular the ability to generalize and learn from small sets of labelled examples like humans do, depends on an appropriate representation of the acoustic input. We formulate the problem of finding robust…

Self-supervised learning general-purpose audio representations have demonstrated high performance in a variety of tasks. Although they can be optimized for application by fine-tuning, even higher performance can be expected if they can be…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-04 Daisuke Niizumi , Daiki Takeuchi , Yasunori Ohishi , Noboru Harada , Kunio Kashino

Accurate Direction-of-Arrival (DOA) estimation in reverberant environments remains a fundamental challenge for spatial audio applications. While deep learning methods have shown strong performance in such conditions, they typically lack a…

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

Textual representation learners trained on large amounts of data have achieved notable success on downstream tasks; intriguingly, they have also performed well on challenging tests of syntactic competence. Given this success, it remains an…

Computation and Language · Computer Science 2020-05-28 Adhiguna Kuncoro , Lingpeng Kong , Daniel Fried , Dani Yogatama , Laura Rimell , Chris Dyer , Phil Blunsom