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Speech compression is commonly used to send voice over radio channels in applications such as mobile telephony and two-way push-to-talk (PTT) radio. In classical systems, the speech codec is combined with forward error correction,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-29 David Rowe , Jean-Marc Valin

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

In low-bitrate speech coding, end-to-end speech coding networks aim to learn compact yet expressive features and a powerful decoder in a single network. A challenging problem as such results in unwelcome complexity increase and inferior…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-16 Haici Yang , Inseon Jang , Minje Kim

Compression for machines is an emerging field, where inputs are encoded while optimizing the performance of downstream automated analysis. In scalable coding for humans and machines, the compressed representation used for machines is…

Image and Video Processing · Electrical Eng. & Systems 2023-05-19 Alon Harell , Yalda Foroutan , Ivan V. Bajic

Wireless Networked Control Systems (WNCSs) are essential to Industry 4.0, enabling flexible control in applications, such as drone swarms and autonomous robots. The interdependence between communication and control requires integrated…

Systems and Control · Electrical Eng. & Systems 2024-10-22 Gaoyang Pang , Wanchun Liu , Dusit Niyato , Branka Vucetic , Yonghui Li

Quantum error-correcting codes (QECCs) can eliminate the negative effects of quantum noise, the major obstacle to the execution of quantum algorithms. However, realizing practical quantum error correction (QEC) requires resolving many…

As state of the art neural networks (NNs) continue to grow in size, their resource-efficient implementation becomes ever more important. In this paper, we introduce a compression scheme that reduces the number of computations required for…

Machine Learning · Computer Science 2025-04-25 Hans Rosenberger , Rodrigo Fischer , Johanna S. Fröhlich , Ali Bereyhi , Ralf R. Müller

Understanding the coordinated activity underlying brain computations requires large-scale, simultaneous recordings from distributed neuronal structures at a cellular-level resolution. One major hurdle to design high-bandwidth,…

Neural and Evolutionary Computing · Computer Science 2018-09-18 Tong Wu , Wenfeng Zhao , Edward Keefer , Zhi Yang

The conventional design of wireless communication systems typically relies on established mathematical models that capture the characteristics of different communication modules. Unfortunately, such design cannot be easily and directly…

Signal Processing · Electrical Eng. & Systems 2021-10-04 Yifan Ma , Yifei Shen , Xianghao Yu , Jun Zhang , S. H. Song , Khaled B. Letaief

Convolutional Neural Networks (CNNs) are effective models for reducing spectral variations and modeling spectral correlations in acoustic features for automatic speech recognition (ASR). Hybrid speech recognition systems incorporating CNNs…

Computation and Language · Computer Science 2017-01-11 Ying Zhang , Mohammad Pezeshki , Philemon Brakel , Saizheng Zhang , Cesar Laurent Yoshua Bengio , Aaron Courville

In speech enhancement, complex neural network has shown promising performance due to their effectiveness in processing complex-valued spectrum. Most of the recent speech enhancement approaches mainly focus on wide-band signal with a…

Audio and Speech Processing · Electrical Eng. & Systems 2021-11-17 Shubo Lv , Yihui Fu , Mengtao Xing , Jiayao Sun , Lei Xie , Jun Huang , Yannan Wang , Tao Yu

Self-supervised speech representations have been shown to be effective in a variety of speech applications. However, existing representation learning methods generally rely on the autoregressive model and/or observed global dependencies…

Computation and Language · Computer Science 2020-11-03 Alexander H. Liu , Yu-An Chung , James Glass

This paper proposes a novel vision-integrated neural speech codec (VNSC), which aims to enhance speech coding quality by leveraging visual modality information. In VNSC, the image analysis-synthesis module extracts visual features from lip…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-30 Yao Guo , Yang Ai , Rui-Chen Zheng , Hui-Peng Du , Xiao-Hang Jiang , Zhen-Hua Ling

Although deep neural networks have facilitated significant progress of neural vocoders in recent years, they usually suffer from intrinsic challenges like opaque modeling, inflexible retraining under different input configurations, and…

Sound · Computer Science 2026-03-11 Andong Li , Tong Lei , Zhihang Sun , Rilin Chen , Xiaodong Li , Dong Yu , Chengshi Zheng

In this work, we address the challenge of encoding speech captured by a microphone array using deep learning techniques with the aim of preserving and accurately reconstructing crucial spatial cues embedded in multi-channel recordings. We…

Sound · Computer Science 2024-07-10 Zhongweiyang Xu , Yong Xu , Vinay Kothapally , Heming Wang , Muqiao Yang , Dong Yu

We present SoundStream, a novel neural audio codec that can efficiently compress speech, music and general audio at bitrates normally targeted by speech-tailored codecs. SoundStream relies on a model architecture composed by a fully…

Sound · Computer Science 2021-07-08 Neil Zeghidour , Alejandro Luebs , Ahmed Omran , Jan Skoglund , Marco Tagliasacchi

Recently, neural networks have proven to be effective in performing speech coding task at low bitrates. However, under-utilization of intra-frame correlations and the error of quantizer specifically degrade the reconstructed audio quality.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-05 Linping Xu , Jiawei Jiang , Dejun Zhang , Xianjun Xia , Li Chen , Yijian Xiao , Piao Ding , Shenyi Song , Sixing Yin , Ferdous Sohel

The rapid rise of real-time communication and large language models has significantly increased the importance of speech compression. Deep learning-based neural speech codecs have outperformed traditional signal-level speech codecs in terms…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-22 Jun Xu , Zhengxue Cheng , Guangchuan Chi , Yuhan Liu , Yuelin Hu , Li Song

Discrete speech tokenization is a fundamental component in speech codecs. However, in large-scale speech-to-speech systems, the complexity of parallel streams from multiple quantizers and the computational cost of high-time-dimensional…

Sound · Computer Science 2025-07-28 Rongkun Xue , Yazhe Niu , Shuai Hu , Zixin Yin , Yongqiang Yao , Jing Yang

As the latest video coding standard, versatile video coding (VVC) has shown its ability in retaining pixel quality. To excavate more compression potential for video conference scenarios under ultra-low bitrate, this paper proposes a bitrate…

Image and Video Processing · Electrical Eng. & Systems 2023-03-21 Anni Tang , Yan Huang , Jun Ling , Zhiyu Zhang , Yiwei Zhang , Rong Xie , Li Song