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With neural video codecs (NVCs) emerging as promising alternatives for traditional compression methods, it is increasingly important to determine whether existing quality metrics remain valid for evaluating their performance. However, few…

Image and Video Processing · Electrical Eng. & Systems 2026-05-19 Benjamin Herb , Rakesh Rao Ramachandra Rao , Steve Göring , Alexander Raake

Neural Speech Codecs face a fundamental trade-off at low bitrates: preserving acoustic fidelity often compromises semantic richness. To address this, we introduce SACodec, a novel codec built upon an asymmetric dual-quantizer that employs…

Sound · Computer Science 2025-12-25 Zhongren Dong , Bin Wang , Jing Han , Haotian Guo , Xiaojun Mo , Yimin Cao , Zixing Zhang

Due to the promising advantages in space compression and inference acceleration, quantized representation learning for recommender systems has become an emerging research direction recently. As the target is to embed latent features in the…

Information Retrieval · Computer Science 2021-12-06 Yankai Chen , Yifei Zhang , Yingxue Zhang , Huifeng Guo , Jingjie Li , Ruiming Tang , Xiuqiang He , Irwin King

Neural compression has brought tremendous progress in designing lossy compressors with good rate-distortion (RD) performance at low complexity. Thus far, neural compression design involves transforming the source to a latent vector, which…

Information Theory · Computer Science 2025-07-15 Eric Lei , Hamed Hassani , Shirin Saeedi Bidokhti

In this paper, we explore vector quantization for acoustic unit discovery. Leveraging unlabelled data, we aim to learn discrete representations of speech that separate phonetic content from speaker-specific details. We propose two neural…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-20 Benjamin van Niekerk , Leanne Nortje , Herman Kamper

This Paper discusses the usefulness of the residual signal for speaker recognition. It is shown that the combination of both a measure defined over LPCC coefficients and a measure defined over the energy of the residual signal gives rise to…

Sound · Computer Science 2022-03-18 Marcos Faundez-Zanuy , Daniel Rodríguez-Porcheron

Low and ultra-low-bitrate neural speech coding achieves unprecedented coding gain by generating speech signals from compact speech features. This paper introduces additional coding efficiency in neural speech coding by reducing the temporal…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-07 Haici Yang , Wootaek Lim , Minje Kim

Speech encoding models use auditory representations to predict how the human brain responds to spoken language stimuli. Most performant encoding models linearly map the hidden states of artificial neural networks to brain data, but this…

Computation and Language · Computer Science 2025-02-14 Nishitha Vattikonda , Aditya R. Vaidya , Richard J. Antonello , Alexander G. Huth

The promise of quantum computing to circumvent the exponential scaling of quantum chemistry has sparked a race to develop chemistry algorithms for quantum architecture. However, most works neglect the quantum-inherent shot noise, let alone…

Audio-LLM introduces audio modality into a large language model (LLM) to enable a powerful LLM to recognize, understand, and generate audio. However, during speech recognition in noisy environments, we observed the presence of illusions and…

Sound · Computer Science 2024-08-20 Yangze Li , Xiong Wang , Songjun Cao , Yike Zhang , Long Ma , Lei Xie

Realistic sound propagation is essential for immersion in a virtual scene, yet physically accurate wave-based simulations remain computationally prohibitive for real-time applications. Wave coding methods address this limitation by…

Sound · Computer Science 2026-02-09 Hugo Seuté , Pranai Vasudev , Etienne Richan , Louis-Xavier Buffoni

Low-rank multivariate regression (LRMR) is an important statistical learning model that combines highly correlated tasks as a multiresponse regression problem with low-rank priori on the coefficient matrix. In this paper, we study quantized…

Machine Learning · Statistics 2023-10-10 Junren Chen , Yueqi Wang , Michael K. Ng

In this paper, we present SCOREQ, a novel approach for speech quality prediction. SCOREQ is a triplet loss function for contrastive regression that addresses the domain generalisation shortcoming exhibited by state of the art no-reference…

Sound · Computer Science 2025-01-16 Alessandro Ragano , Jan Skoglund , Andrew Hines

Current large speech language models are mainly based on semantic tokens from discretization of self-supervised learned representations and acoustic tokens from a neural codec, following a semantic-modeling and acoustic-synthesis paradigm.…

Sound · Computer Science 2025-10-16 Xue Jiang , Xiulian Peng , Yuan Zhang , Yan Lu

Recent work in the domain of speech enhancement has explored the use of self-supervised speech representations to aid in the training of neural speech enhancement models. However, much of this work focuses on using the deepest or final…

Sound · Computer Science 2023-06-27 George Close , William Ravenscroft , Thomas Hain , Stefan Goetze

Error-correcting codes were invented to correct errors on noisy communication channels. Quantum error correction (QEC), however, may have a wider range of uses, including information transmission, quantum simulation/computation, and…

Quantum Physics · Physics 2022-08-05 Ningping Cao , Junan Lin , David Kribs , Yiu-Tung Poon , Bei Zeng , Raymond Laflamme

Parameterized Quantum Circuits (PQC) are promising towards quantum advantage on near-term quantum hardware. However, due to the large quantum noises (errors), the performance of PQC models has a severe degradation on real quantum devices.…

Machine Learning · Computer Science 2025-01-29 Hanrui Wang , Jiaqi Gu , Yongshan Ding , Zirui Li , Frederic T. Chong , David Z. Pan , Song Han

Speech quality assessment (SQA) aims to predict the perceived quality of speech signals under a wide range of distortions. It is inherently connected to speech enhancement (SE), which seeks to improve speech quality by removing unwanted…

Sound · Computer Science 2025-08-25 Wei Wang , Wangyou Zhang , Chenda Li , Jiatong Shi , Shinji Watanabe , Yanmin Qian

Unsupervised representation learning of speech has been of keen interest in recent years, which is for example evident in the wide interest of the ZeroSpeech challenges. This work presents a new method for learning frame level…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-18 Mingjie Chen , Thomas Hain

Departing from traditional communication theory where decoding algorithms are assumed to perform without error, a system where noise perturbs both computational devices and communication channels is considered here. This paper studies…

Information Theory · Computer Science 2010-05-31 Lav R. Varshney