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To extract robust deep representations from long sequential modeling of speech data, we propose a self-supervised learning approach, namely Contrastive Separative Coding (CSC). Our key finding is to learn such representations by separating…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-02 Jun Wang , Max W. Y. Lam , Dan Su , Dong Yu

In the recent years, speech representation learning is constructed primarily as a self-supervised learning (SSL) task, using the raw audio signal alone, while ignoring the side-information that is often available for a given speech…

Sound · Computer Science 2023-09-26 Anjali Raj , Shikhar Bharadwaj , Sriram Ganapathy , Min Ma , Shikhar Vashishth

Spatially-coupled (SC) codes, known for their threshold saturation phenomenon and low-latency windowed decoding algorithms, are ideal for streaming applications and data storage systems. SC codes are constructed by partitioning an…

Information Theory · Computer Science 2021-09-21 Siyi Yang , Ahmed Hareedy , Robert Calderbank , Lara Dolecek

Discrete representation has emerged as a powerful tool in task-oriented semantic communication (ToSC), offering compact, interpretable, and efficient representations well-suited for low-power edge intelligence scenarios. Its inherent…

Signal Processing · Electrical Eng. & Systems 2025-08-07 Anbang Zhang , Shuaishuai Guo , Chenyuan Feng , Hongyang Du , Haojin Li , Chen Sun , Haijun Zhang

Although the semantic communication with joint semantic-channel coding design has shown promising performance in transmitting data of different modalities over physical layer channels, the synchronization and packet-level forward error…

Image and Video Processing · Electrical Eng. & Systems 2024-08-13 Yun Tian , Jingkai Ying , Zhijin Qin , Ye Jin , Xiaoming Tao

Recently, learned video compression has achieved exciting performance. Following the traditional hybrid prediction coding framework, most learned methods generally adopt the motion estimation motion compensation (MEMC) method to remove…

Image and Video Processing · Electrical Eng. & Systems 2023-10-20 Yiming Wang , Qian Huang , Bin Tang , Huashan Sun , Xing Li

This paper proposes a novel automatic speech recognition (ASR) framework called Integrated Source-Channel and Attention (ISCA) that combines the advantages of traditional systems based on the noisy source-channel model (SC) and end-to-end…

Audio and Speech Processing · Electrical Eng. & Systems 2019-10-02 Qiujia Li , Chao Zhang , Philip C. Woodland

Semantic communication has gained significant attention from researchers as a promising technique to replace conventional communication in the next generation of communication systems, primarily due to its ability to reduce communication…

Information Theory · Computer Science 2025-02-07 Loc X. Nguyen , Ye Lin Tun , Yan Kyaw Tun , Minh N. H. Nguyen , Chaoning Zhang , Zhu Han , Choong Seon Hong

We introduce deep learning based communication methods for successive refinement of images over wireless channels. We present three different strategies for progressive image transmission with deep JSCC, with different…

Information Theory · Computer Science 2019-05-30 David Burth Kurka , Deniz Gunduz

A new channel coding approach was proposed in [1] for random multiple access communication over the discrete-time memoryless channel. The coding approach allows users to choose their communication rates independently without sharing the…

Information Theory · Computer Science 2016-11-15 Zheng Wang , Jie Luo

Neural audio codecs (NACs) provide compact representations that can be leveraged in many downstream applications, in particular large language models. Yet most NACs encode mixtures of multiple sources in an entangled manner, which may…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-21 Ryo Aihara , Yoshiki Masuyama , Francesco Paissan , François G. Germain , Gordon Wichern , Jonathan Le Roux

In this paper, we propose "SoundSpring", a cutting-edge error-resilient audio transceiver that marries the robustness benefits of joint source-channel coding (JSCC) while also being compatible with current digital communication systems.…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-23 Shengshi Yao , Jincheng Dai , Xiaoqi Qin , Sixian Wang , Siye Wang , Kai Niu , Ping Zhang

Lossy transmission over a relay channel in which the relay has access to correlated side information is considered. First, a joint source-channel decode-and-forward scheme is proposed for general discrete memoryless sources and channels.…

Information Theory · Computer Science 2016-11-17 Deniz Gunduz , Elza Erkip , Andrea J. Goldsmith , H. Vincent Poor

The growing demand for high-quality point cloud transmission over wireless networks presents significant challenges, primarily due to the large data sizes and the need for efficient encoding techniques. In response to these challenges, we…

Multimedia · Computer Science 2024-08-12 Cixiao Zhang , Mufan Liu , Wenjie Huang , Yin Xu , Yiling Xu , Dazhi He

In this paper, techniques for improving multichannel lossless coding are examined. A method is proposed for the simultaneous coding of two or more different renderings (mixes) of the same content. The signal model uses both past samples of…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-31 Toni Hirvonen , Mahmoud Namazi

We consider a real-time communication system with noisy feedback consisting of a Markov source, a forward and a backward discrete memoryless channels, and a receiver with finite memory. The objective is to design an optimal communication…

Information Theory · Computer Science 2007-09-25 Aditya Mahajan , Demosthenis Teneketzis

We introduce a method for securely delivering a set of messages to a group of clients over a broadcast erasure channel where each client is interested in a distinct message. Each client is able to obtain its own message but not the others'.…

Information Theory · Computer Science 2013-05-08 Shahriar Etemadi Tajbakhsh , Parastoo Sadeghi , Rodney Kennedy

Task-oriented communications, mostly using learning-based joint source-channel coding (JSCC), aim to design a communication-efficient edge inference system by transmitting task-relevant information to the receiver. However, only…

Information Theory · Computer Science 2023-05-10 Songjie Xie , Shuai Ma , Ming Ding , Yuanming Shi , Mingjian Tang , Youlong Wu

Reliably transmitting messages despite information loss due to a noisy channel is a core problem of information theory. One of the most important aspects of real world communication, e.g. via wifi, is that it may happen at varying levels of…

Machine Learning · Computer Science 2020-04-02 Karen Ullrich , Fabio Viola , Danilo Jimenez Rezende

Recently, multi-channel speech enhancement has drawn much interest due to the use of spatial information to distinguish target speech from interfering signal. To make full use of spatial information and neural network based masking…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-18 Shubo Lv , Yihui Fu , Yukai Jv , Lei Xie , Weixin Zhu , Wei Rao , Yannan Wang