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In typical multi-talker speech recognition systems, a neural network-based acoustic model predicts senone state posteriors for each speaker. These are later used by a single-talker decoder which is applied on each speaker-specific output…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-18 Martin Kocour , Kateřina Žmolíková , Lucas Ondel , Ján Švec , Marc Delcroix , Tsubasa Ochiai , Lukáš Burget , Jan Černocký

Despite the significant progress made in the last years, state-of-the-art speech recognition technologies provide a satisfactory performance only in the close-talking condition. Robustness of distant speech recognition in adverse acoustic…

Audio and Speech Processing · Electrical Eng. & Systems 2017-10-11 Mirco Ravanelli , Maurizio Omologo

Single-channel speech enhancement algorithms are often used in resource-constrained embedded devices, where low latency and low complexity designs gain more importance. In recent years, researchers have proposed a wide variety of novel…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-29 Nicolás Arrieta Larraza , Niels de Koeijer

This paper presents a novel machine-hearing system that exploits deep neural networks (DNNs) and head movements for robust binaural localisation of multiple sources in reverberant environments. DNNs are used to learn the relationship…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-08 Ning Ma , Tobias May , Guy J. Brown

Neural machine translation (NMT) heavily relies on an attention network to produce a context vector for each target word prediction. In practice, we find that context vectors for different target words are quite similar to one another and…

Computation and Language · Computer Science 2019-11-14 Biao Zhang , Deyi Xiong , Jinsong Su

Neural networks in general, from MLPs and CNNs to attention-based Transformers, are constructed from layers of linear combinations followed by nonlinear operations such as ReLU, Sigmoid, or Softmax. Despite their strength, these…

Machine Learning · Computer Science 2025-10-09 Weiguo Lu , Gangnan Yuan , Hong-kun Zhang , Shangyang Li

An ASR system usually does not predict any punctuation or capitalization. Lack of punctuation causes problems in result presentation and confuses both the human reader andoff-the-shelf natural language processing algorithms. To overcome…

Computation and Language · Computer Science 2018-07-03 Piotr Żelasko , Piotr Szymański , Jan Mizgajski , Adrian Szymczak , Yishay Carmiel , Najim Dehak

While traditional statistical signal processing model-based methods can derive the optimal estimators relying on specific statistical assumptions, current learning-based methods further promote the performance upper bound via deep neural…

Sound · Computer Science 2022-03-17 Andong Li , Chengshi Zheng , Ziyang Zhang , Xiaodong Li

Speech-based depression detection poses significant challenges for automated detection due to its unique manifestation across individuals and data scarcity. Addressing these challenges, we introduce DAAMAudioCNNLSTM and…

Sound · Computer Science 2024-09-04 Georgios Ioannides , Adrian Kieback , Aman Chadha , Aaron Elkins

Recent advances in deep learning have significantly improved multichannel speech enhancement algorithms, yet conventional training loss functions such as the scale-invariant signal-to-distortion ratio (SDR) may fail to preserve fine-grained…

Sound · Computer Science 2025-06-24 Nasser-Eddine Monir , Paul Magron , Romain Serizel

Speech enhancement at extremely low signal-to-noise ratio (SNR) condition is a very challenging problem and rarely investigated in previous works. This paper proposes a robust speech enhancement approach (UNetGAN) based on U-Net and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-30 Xiang Hao , Xiangdong Su , Zhiyu Wang , Hui Zhang , Batushiren

Speech separation algorithms are often used to separate the target speech from other interfering sources. However, purely neural network based speech separation systems often cause nonlinear distortion that is harmful for automatic speech…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-10 Zhuohuang Zhang , Yong Xu , Meng Yu , Shi-Xiong Zhang , Lianwu Chen , Dong Yu

We propose an enhanced deep learning-based model for image segmentation of the left and right ventricles and myocardium scar tissue from cardiac magnetic resonance (CMR) images. The proposed technique integrates UNet, channel and spatial…

Image and Video Processing · Electrical Eng. & Systems 2025-04-21 Racheal Mukisa , Arvind K. Bansal

Enhancing speech quality under adverse SNR conditions remains a significant challenge for discriminative deep neural network (DNN)-based approaches. In this work, we propose DisCoGAN, which is a time-frequency-domain generative adversarial…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-18 Shrishti Saha Shetu , Emanuël A. P. Habets , Andreas Brendel

Speaker diarization has been investigated extensively as an important central task for meeting analysis. Recent trend shows that integration of end-to-end neural (EEND)-and clustering-based diarization is a promising approach to handle…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-15 Keisuke Kinoshita , Marc Delcroix , Tomoharu Iwata

The generative adversarial networks (GANs) have facilitated the development of speech enhancement recently. Nevertheless, the performance advantage is still limited when compared with state-of-the-art models. In this paper, we propose a…

Sound · Computer Science 2020-06-16 Andong Li , Chengshi Zheng , Renhua Peng , Cunhang Fan , Xiaodong Li

The current dominant approach for neural speech enhancement is based on supervised learning by using simulated training data. The trained models, however, often exhibit limited generalizability to real-recorded data. To address this, this…

Audio and Speech Processing · Electrical Eng. & Systems 2025-03-25 Zhong-Qiu Wang

This paper presents our latest investigation on Densely Connected Convolutional Networks (DenseNets) for acoustic modelling (AM) in automatic speech recognition. DenseN-ets are very deep, compact convolutional neural networks, which have…

Computation and Language · Computer Science 2018-08-13 Chia Yu Li , Ngoc Thang Vu

We present the speech to text transcription system, called DARTS, for low resource Egyptian Arabic dialect. We analyze the following; transfer learning from high resource broadcast domain to low-resource dialectal domain and semi-supervised…

Computation and Language · Computer Science 2019-09-27 Sameer Khurana , Ahmed Ali , James Glass

Human auditory cortex excels at selectively suppressing background noise to focus on a target speaker. The process of selective attention in the brain is known to contextually exploit the available audio and visual cues to better focus on…

Sound · Computer Science 2018-09-12 Mandar Gogate , Ahsan Adeel , Ricard Marxer , Jon Barker , Amir Hussain