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Self-supervised learning (SSL) has become a core technique in speech processing, but the high dimensionality of its representations makes discretization essential for improving efficiency. However, existing discretization methods still…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-11 Xueqing Li , Hao Ma , Zehan Li , Rujin Chen , Boyu Zhu , Ruihao Jing , Jian Kang , Jie Li , Chi Zhang , Xiao-Lei Zhang , Xuelong Li

We propose an end-to-end learned image compression codec wherein the analysis transform is jointly trained with an object classification task. This study affirms that the compressed latent representation can predict human perceptual…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Chen-Hsiu Huang , Ja-Ling Wu

Speech tokenizers are essential for connecting speech to large language models (LLMs) in multimodal systems. These tokenizers are expected to preserve both semantic and acoustic information for downstream understanding and generation.…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-12 Xuan Shi , Chang Zeng , Tiantian Feng , Shih-Heng Wang , Jianbo Ma , Shrikanth Narayanan

Consider a control problem with a communication channel connecting the observer of a linear stochastic system to the controller. The goal of the controller is to minimize a quadratic cost function in the state variables and control signal,…

Information Theory · Computer Science 2018-11-27 Victoria Kostina , Babak Hassibi

We introduce a state-of-the-art real-time, high-fidelity, audio codec leveraging neural networks. It consists in a streaming encoder-decoder architecture with quantized latent space trained in an end-to-end fashion. We simplify and speed-up…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-25 Alexandre Défossez , Jade Copet , Gabriel Synnaeve , Yossi Adi

Neural latent variable models enable the discovery of interesting structure in speech audio data. This paper presents a comparison of two different approaches which are broadly based on predicting future time-steps or auto-encoding the…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-28 Henry Zhou , Alexei Baevski , Michael Auli

One challenge of integrating speech input with large language models (LLMs) stems from the discrepancy between the continuous nature of audio data and the discrete token-based paradigm of LLMs. To mitigate this gap, we propose a method for…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-20 Mu Yang , Szu-Jui Chen , Jiamin Xie , John Hansen

Large language models (LLMs) have emerged as strong contenders in machine translation.Yet, they still struggle to adequately handle discourse phenomena, such as pronoun resolution and lexical cohesion at the document level. In this study,…

Computation and Language · Computer Science 2025-10-09 Wafaa Mohammed , Vlad Niculae , Chrysoula Zerva

Latent representation learning has been an active field of study for decades in numerous applications. Inspired among others by the tokenization from Natural Language Processing and motivated by the research of a simple data representation,…

Signal Processing · Electrical Eng. & Systems 2024-09-26 Benoît Giniès , Xiaoyu Bie , Olivier Fercoq , Gaël Richard

The objective speech quality assessment is usually conducted by comparing received speech signal with its clean reference, while human beings are capable of evaluating the speech quality without any reference, such as in the mean opinion…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-06 Meng Yu , Chunlei Zhang , Yong Xu , Shixiong Zhang , Dong Yu

Neural audio codecs are widely used as tokenizers for spoken language models, but they are optimized for waveform reconstruction rather than autoregressive prediction. This mismatch injects acoustically driven uncertainty into the discrete…

Sound · Computer Science 2026-04-21 Ho-Lam Chung , Yiming Chen , Hung-yi Lee

Non-intrusive speech intelligibility (SI) prediction from binaural signals is useful in many applications. However, most existing signal-based measures are designed to be applied to single-channel signals. Measures specifically designed to…

Sound · Computer Science 2022-03-23 Alex F. McKinney , Benjamin Cauchi

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

Conventional audio coding technologies commonly leverage human perception of sound, or psychoacoustics, to reduce the bitrate while preserving the perceptual quality of the decoded audio signals. For neural audio codecs, however, the…

Sound · Computer Science 2021-01-05 Kai Zhen , Mi Suk Lee , Jongmo Sung , Seungkwon Beack , Minje Kim

This paper explores the integration of model-based and data-driven approaches within the realm of neural speech and audio coding systems. It highlights the challenges posed by the subjective evaluation processes of speech and audio codecs…

Sound · Computer Science 2025-01-08 Minje Kim , Jan Skoglund

Neural audio codecs, used as speech tokenizers, have demonstrated remarkable potential in the field of speech generation. However, to ensure high-fidelity audio reconstruction, neural audio codecs typically encode audio into long sequences…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-02 Wenrui Liu , Qian Chen , Wen Wang , Yafeng Chen , Jin Xu , Zhifang Guo , Guanrou Yang , Weiqin Li , Xiaoda Yang , Tao Jin , Minghui Fang , Jialong Zuo , Bai Jionghao , Zemin Liu

Audio quality assessment is critical for assessing the perceptual realism of sounds. However, the time and expense of obtaining ''gold standard'' human judgments limit the availability of such data. For AR&VR, good perceived sound quality…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-27 Pranay Manocha , Anurag Kumar , Buye Xu , Anjali Menon , Israel D. Gebru , Vamsi K. Ithapu , Paul Calamia

Recent advancements in audio generation have been significantly propelled by the capabilities of Large Language Models (LLMs). The existing research on audio LLM has primarily focused on enhancing the architecture and scale of audio…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-28 Zhen Ye , Peiwen Sun , Jiahe Lei , Hongzhan Lin , Xu Tan , Zheqi Dai , Qiuqiang Kong , Jianyi Chen , Jiahao Pan , Qifeng Liu , Yike Guo , Wei Xue

With the emergence of neural audio codecs, which encode multiple streams of discrete tokens from audio, large language models have recently gained attention as a promising approach for zero-shot Text-to-Speech (TTS) synthesis. Despite the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-04-04 Jaehyeon Kim , Keon Lee , Seungjun Chung , Jaewoong Cho

Efficient audio quality assessment is vital for streamlining audio codec development. Objective assessment tools have been developed over time to algorithmically predict quality ratings from subjective assessments, the gold standard for…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-28 Pablo M. Delgado , Jürgen Herre