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Generating audio captions is a new research area that combines audio and natural language processing to create meaningful textual descriptions for audio clips. To address this problem, previous studies mostly use the encoder-decoder based…

Sound · Computer Science 2021-05-14 Ayşegül Özkaya Eren , Mustafa Sert

Neural audio codecs have made significant strides in efficiently mapping raw audio waveforms into discrete token representations, which are foundational for contemporary audio generative models. However, most existing codecs are optimized…

Audio super-resolution is the task of constructing a high-resolution (HR) audio from a low-resolution (LR) audio by adding the missing band. Previous methods based on convolutional neural networks and mean squared error training objective…

Sound · Computer Science 2021-06-17 Kexun Zhang , Yi Ren , Changliang Xu , Zhou Zhao

Neural audio codecs have recently enabled high-fidelity reconstruction at high compression rates, especially for speech. However, speech and non-speech audio exhibit fundamentally different spectral characteristics: speech energy…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-11 Haoran Wang , Jiatong Shi , Jinchuan Tian , Bohan Li , Kai Yu , Shinji Watanabe

While existing speech audio codecs designed for compression exploit limited forms of temporal redundancy and allow for multi-scale representations, they tend to represent all features of audio in the same way. In contrast, generative voice…

Sound · Computer Science 2025-09-22 Ryan Collette , Ross Greenwood , Serena Nicoll

Neural autoencoders underpin generative models. Practical, large-scale use of neural autoencoders for generative modeling necessitates fast encoding, low latent rates, and a single model across representations. Existing approaches are…

Sound · Computer Science 2026-02-23 Jonah Casebeer , Ge Zhu , Zhepei Wang , Nicholas J. Bryan

Neural audio codecs are initially introduced to compress audio data into compact codes to reduce transmission latency. Researchers recently discovered the potential of codecs as suitable tokenizers for converting continuous audio into…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-21 Haibin Wu , Xuanjun Chen , Yi-Cheng Lin , Kai-wei Chang , Ho-Lam Chung , Alexander H. Liu , Hung-yi Lee

Large language models (LLMs) have significantly advanced audio processing through audio codecs that convert audio into discrete tokens, enabling the application of language modelling techniques to audio data. However, traditional codecs…

Sound · Computer Science 2024-12-02 Haohe Liu , Xuenan Xu , Yi Yuan , Mengyue Wu , Wenwu Wang , Mark D. Plumbley

In recent works, a flow-based neural vocoder has shown significant improvement in real-time speech generation task. The sequence of invertible flow operations allows the model to convert samples from simple distribution to audio samples.…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-18 Hyun-Wook Yoon , Sang-Hoon Lee , Hyeong-Rae Noh , Seong-Whan Lee

Audio codec models are widely used in audio communication as a crucial technique for compressing audio into discrete representations. Nowadays, audio codec models are increasingly utilized in generation fields as intermediate…

Sound · Computer Science 2023-05-09 Dongchao Yang , Songxiang Liu , Rongjie Huang , Jinchuan Tian , Chao Weng , Yuexian Zou

We propose WHISPER-GPT: A generative large language model (LLM) for speech and music that allows us to work with continuous audio representations and discrete tokens simultaneously as part of a single architecture. There has been a huge…

Sound · Computer Science 2024-12-20 Prateek Verma

Recently, generative speech enhancement has garnered considerable interest; however, existing approaches are hindered by excessive complexity, limited efficiency, and suboptimal speech quality. To overcome these challenges, this paper…

Sound · Computer Science 2026-02-03 Fei Liu , Yang Ai

Neural audio coding has been shown to outperform classical audio coding at extremely low bitrates. However, the practical application of neural audio codecs is still limited by their elevated complexity. To address this challenge, we have…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-20 Jiawei Jiang , Linping Xu , Dejun Zhang , Qingbo Huang , Xianjun Xia , Yijian Xiao

Video-to-audio (V2A) generation leverages visual-only video features to render plausible sounds that match the scene. Importantly, the generated sound onsets should match the visual actions that are aligned with them, otherwise unnatural…

Sound · Computer Science 2024-07-16 Santiago Pascual , Chunghsin Yeh , Ioannis Tsiamas , Joan Serrà

Neural audio codec (NAC) is essential for reconstructing high-quality speech signals and generating discrete representations for downstream speech language models. However, ensuring accurate semantic modeling while maintaining high-fidelity…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-03 Yanzhou Ren , Noboru Harada , Daiki Takeuchi , Siyu Chen , Wei Liu , Xiao Zhang , Liyuan Zhang , Takehiro Moriya , Shoji Makino

A good audio codec for live applications such as telecommunication is characterized by three key properties: (1) compression, i.e.\ the bitrate that is required to transmit the signal should be as low as possible; (2) latency, i.e.\…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-29 Yi-Chiao Wu , Israel D. Gebru , Dejan Marković , Alexander Richard

Language models have been successfully used to model natural signals, such as images, speech, and music. A key component of these models is a high quality neural compression model that can compress high-dimensional natural signals into…

Sound · Computer Science 2023-10-30 Rithesh Kumar , Prem Seetharaman , Alejandro Luebs , Ishaan Kumar , Kundan Kumar

Ultra-low-bitrate speech coding is pivotal for bandwidth-constrained communication and deep compression, yet maintaining naturalness and speaker identity at such extreme bit budgets remains challenging due to pronounced information loss and…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-26 Hui-Peng Du , Yang Ai , Xiao-Hang Jiang , Yuan Tian , Zhen-Hua Ling

Audio restoration has become increasingly significant in modern society, not only due to the demand for high-quality auditory experiences enabled by advanced playback devices, but also because the growing capabilities of generative audio…

Sound · Computer Science 2025-01-08 Kai Li , Yi Luo

Cinematic audio source separation is a relatively new subtask of audio source separation, with the aim of extracting the dialogue, music, and effects stems from their mixture. In this work, we developed a model generalizing the Bandsplit…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-27 Karn N. Watcharasupat , Chih-Wei Wu , Yiwei Ding , Iroro Orife , Aaron J. Hipple , Phillip A. Williams , Scott Kramer , Alexander Lerch , William Wolcott