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Related papers: UniCodec: Unified Audio Codec with Single Domain-A…

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Speech codecs serve as bridges between speech signals and large language models. An ideal codec for speech language models should not only preserve acoustic information but also capture rich semantic information. However, existing speech…

This paper proposes StreamCodec, a streamable neural audio codec designed for real-time communication. StreamCodec adopts a fully causal, symmetric encoder-decoder structure and operates in the modified discrete cosine transform (MDCT)…

Sound · Computer Science 2025-04-10 Xiao-Hang Jiang , Yang Ai , Rui-Chen Zheng , Zhen-Hua Ling

In recent years, there has been a growing focus on fairness and inclusivity within speech technology, particularly in areas such as automatic speech recognition and speech sentiment analysis. When audio is transcoded prior to processing, as…

Sound · Computer Science 2025-09-26 Kemal Altwlkany , Amar Kuric , Emanuel Lacic

Randomly masking and predicting word tokens has been a successful approach in pre-training language models for a variety of downstream tasks. In this work, we observe that the same idea also applies naturally to sequential decision-making,…

Large Language Models (LLMs) have significantly advanced audio processing by leveraging audio codecs to discretize audio into tokens, enabling the application of language modeling techniques to speech data. However, existing audio codecs…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-11 Edresson Casanova , Paarth Neekhara , Ryan Langman , Shehzeen Hussain , Subhankar Ghosh , Xuesong Yang , Ante Jukić , Jason Li , Boris Ginsburg

With the rise of diffusion models, audio-video generation has been revolutionized. However, most existing methods rely on separate modules for each modality, with limited exploration of unified generative architectures. In addition, many…

Multimedia · Computer Science 2025-07-08 Lei Zhao , Linfeng Feng , Dongxu Ge , Rujin Chen , Fangqiu Yi , Chi Zhang , Xiao-Lei Zhang , Xuelong Li

In this paper, we propose a unified pre-training approach called UniSpeech to learn speech representations with both unlabeled and labeled data, in which supervised phonetic CTC learning and phonetically-aware contrastive self-supervised…

Computation and Language · Computer Science 2021-06-11 Chengyi Wang , Yu Wu , Yao Qian , Kenichi Kumatani , Shujie Liu , Furu Wei , Michael Zeng , Xuedong Huang

This paper introduces a novel neural network-based speech coding system that can process noisy speech effectively. The proposed source-aware neural audio coding (SANAC) system harmonizes a deep autoencoder-based source separation model and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-11 Haici Yang , Kai Zhen , Seungkwon Beack , Minje Kim

Neural audio coding has shown very promising results recently in the literature to largely outperform traditional codecs but limited attention has been paid on its error resilience. Neural codecs trained considering only source coding tend…

Sound · Computer Science 2022-07-05 Huaying Xue , Xiulian Peng , Xue Jiang , Yan Lu

Current neural audio codecs typically use residual vector quantization (RVQ) to discretize speech signals. However, they often experience codebook collapse, which reduces the effective codebook size and leads to suboptimal performance. To…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-12 Rui-Chen Zheng , Hui-Peng Du , Xiao-Hang Jiang , Yang Ai , Zhen-Hua Ling

Over the past decade, audio coding technology has seen standardization and the development of many frameworks incorporated with linear predictive coding (LPC). As LPC reduces information in the frequency domain, LP-based frequency-domain…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-18 Byeongho Jo , Seungkwon Beack , Taejin Lee

Neural audio autoencoders create compact latent representations that preserve perceptually important information, serving as the foundation for both modern audio compression systems and generation approaches like next-token prediction and…

Sound · Computer Science 2025-09-10 Dimitrios Bralios , Paris Smaragdis , Jonah Casebeer

Recent advances in speech spoofing necessitate stronger verification mechanisms in neural speech codecs to ensure authenticity. Current methods embed numerical watermarks before compression and extract them from reconstructed speech for…

Sound · Computer Science 2024-12-30 Junzuo Zhou , Jiangyan Yi , Yong Ren , Jianhua Tao , Tao Wang , Chu Yuan Zhang

LLM-powered code generation has the potential to revolutionize creative coding endeavors, such as live-coding, by enabling users to focus on structural motifs over syntactic details. In such domains, when prompting an LLM, users may benefit…

Multimedia · Computer Science 2025-09-25 Sam Kouteili , Hiren Madhu , George Typaldos , Mark Santolucito

Neural codec language models achieve impressive zero-shot Text-to-Speech (TTS) by fully imitating the acoustic characteristics of a short speech prompt, including timbre, prosody, and paralinguistic information. However, such holistic…

Sound · Computer Science 2026-01-21 Hanchen Pei , Shujie Liu , Yanqing Liu , Jianwei Yu , Yuanhang Qian , Gongping Huang , Sheng Zhao , Yan Lu

Various applications of voice synthesis have been developed independently despite the fact that they generate "voice" as output in common. In addition, the majority of voice synthesis models currently rely on annotated audio data, but it is…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-31 Rongjie Huang , Chunlei Zhang , Yongqi Wang , Dongchao Yang , Luping Liu , Zhenhui Ye , Ziyue Jiang , Chao Weng , Zhou Zhao , Dong Yu

Speech codecs serve as bridges between continuous speech signals and large language models, yet face an inherent conflict between acoustic fidelity and semantic preservation. To mitigate this conflict, prevailing methods augment acoustic…

Sound · Computer Science 2026-01-28 Xin Zhang , Lin Li , Xiangni Lu , Jianquan Liu , Kong Aik Lee

Data-driven approaches hold promise for audio captioning. However, the development of audio captioning methods can be biased due to the limited availability and quality of text-audio data. This paper proposes a SynthAC framework, which…

Sound · Computer Science 2023-09-19 Feiyang Xiao , Qiaoxi Zhu , Jian Guan , Xubo Liu , Haohe Liu , Kejia Zhang , Wenwu Wang

In the area of multi-domain speech recognition, research in the past focused on hybrid acoustic models to build cross-domain and domain-invariant speech recognition systems. In this paper, we empirically examine the difference in behavior…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-10 Thai-Son Nguyen , Sebastian Stüker , Alex Waibel

EEG and audio are inherently distinct modalities, differing in sampling rate, channel structure, and scale. Yet, we show that pretrained neural audio codecs can serve as effective starting points for EEG compression, provided that the data…

Machine Learning · Computer Science 2025-12-01 Ard Kastrati , Luca Lanzendörfer , Riccardo Rigoni , John Staib Matilla , Roger Wattenhofer