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Related papers: HH-Codec: High Compression High-fidelity Discrete …

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Recent neural audio compression models often rely on residual vector quantization for high-fidelity coding, but using a fixed number of per-frame codebooks is suboptimal for the wide variability of audio content-especially for signals that…

Sound · Computer Science 2026-05-08 Xiangbo Wang , Wenbin Jiang , Jin Wang , Yubo You , Sheng Fang , Fei Wen

The emergence of audio language models is empowered by neural audio codecs, which establish critical mappings between continuous waveforms and discrete tokens compatible with language model paradigms. The evolutionary trends from…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-28 Yidi Jiang , Qian Chen , Shengpeng Ji , Yu Xi , Wen Wang , Chong Zhang , Xianghu Yue , ShiLiang Zhang , Haizhou Li

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

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

Efficient compression of language model weights is increasingly critical as model scale and deployment grow. Yet, most existing methods rely on handcrafted transforms and heuristics, reflecting the limited understanding of weights as a data…

Machine Learning · Computer Science 2026-05-28 Jegwang Ryu , Minkyu Kim , Seungjun Shin , Hee Min Choi , Dokwan Oh , Jaeho Lee

Large Language Models (LLMs) have demonstrated remarkable success across diverse fields, establishing a powerful paradigm for complex information processing. This has inspired the integration of speech into LLM frameworks, often by…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-30 Xiangyu Zhang , Fuming Fang , Peng Gao , Bin Qin , Beena Ahmed , Julien Epps

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

Inspired by the success of deep neural networks (DNNs) in speech processing, this paper presents Deep Vocoder, a direct end-to-end low bit rate speech compression method with deep autoencoder (DAE). In Deep Vocoder, DAE is used for…

Multimedia · Computer Science 2019-05-15 Gang Min , Changqing Zhang , Xiongwei Zhang , Wei Tan

Recently, denoising diffusion models have demonstrated remarkable performance among generative models in various domains. However, in the speech domain, the application of diffusion models for synthesizing time-varying audio faces…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-13 Ji-Sang Hwang , Sang-Hoon Lee , Seong-Whan Lee

Speech tokenizers are foundational to speech language models, yet existing approaches face two major challenges: (1) balancing trade-offs between encoding semantics for understanding and acoustics for reconstruction, and (2) achieving low…

This paper presents a novel mixed-precision quantization approach for speech foundation models that tightly integrates mixed-precision learning and quantized model parameter estimation into one single model compression stage. Experiments…

Recent advancements in Neural Audio Codec (NAC) models have inspired their use in various speech processing tasks, including speech enhancement (SE). In this work, we propose a novel, efficient SE approach by leveraging the pre-quantization…

Audio and Speech Processing · Electrical Eng. & Systems 2025-03-18 Haoyang Li , Jia Qi Yip , Tianyu Fan , Eng Siong Chng

WaveNet is a state-of-the-art text-to-speech vocoder that remains challenging to deploy due to its autoregressive loop. In this work we focus on ways to accelerate the original WaveNet architecture directly, as opposed to modifying the…

Machine Learning · Computer Science 2020-11-23 Sam Davis , Giuseppe Coccia , Sam Gooch , Julian Mack

With increasing quality requirements for multimedia communications, audio codecs must maintain both high quality and low delay. Typically, audio codecs offer either low delay or high quality, but rarely both. We propose a codec that…

Model compression has become an emerging need as the sizes of modern speech systems rapidly increase. In this paper, we study model weight quantization, which directly reduces the memory footprint to accommodate computationally…

We propose a novel neural waveform compression method to catalyze emerging speech semantic communications. By introducing nonlinear transform and variational modeling, we effectively capture the dependencies within speech frames and…

Sound · Computer Science 2022-12-14 Shengshi Yao , Zixuan Xiao , Sixian Wang , Jincheng Dai , Kai Niu , Ping Zhang

Neural audio codecs optimized for mel-spectrogram reconstruction often fail to preserve intelligibility. While semantic encoder distillation improves encoded representations, it does not guarantee content preservation in reconstructed…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-09 Junhyeok Lee , Xiluo He , Jihwan Lee , Helin Wang , Shrikanth Narayanan , Thomas Thebaud , Laureano Moro-Velazquez , Jesús Villalba , Najim Dehak

The fusion of speech and language in the era of large language models has garnered significant attention. Discrete speech token is often utilized in text-to-speech tasks for speech compression and portability, which is convenient for joint…

Sound · Computer Science 2025-04-01 Yixing Li , Ruobing Xie , Xingwu Sun , Yu Cheng , Zhanhui Kang

One viable solution for continuous reduction in energy-per-operation is to rethink functionality to cope with uncertainty by adopting computational approaches that are inherently robust to uncertainty. It requires a novel look at data…

Emerging Technologies · Computer Science 2018-11-26 Abbas Rahimi , Tony F. Wu , Haitong Li , Jan M. Rabaey , H. -S. Philip Wong , Max M. Shulaker , Subhasish Mitra

Neural Audio Codecs (NACs) have gained growing attention in recent years as technologies for audio compression and audio representation in speech language models. While mainstream NACs typically require G-level computation and M-level…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-27 Zixiang Wan , Guochang Zhang , Yifeng He , Jianqiang Wei