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Several recent studies have attempted to autoregressively generate continuous speech representations without discrete speech tokens by combining diffusion and autoregressive models, yet they often face challenges with excessive…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-09 Dongya Jia , Zhuo Chen , Jiawei Chen , Chenpeng Du , Jian Wu , Jian Cong , Xiaobin Zhuang , Chumin Li , Zhen Wei , Yuping Wang , Yuxuan Wang

This paper introduces a discrete diffusion model (DDM) framework for text-aligned speech tokenization and reconstruction. By replacing the auto-regressive speech decoder with a discrete diffusion counterpart, our model achieves…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-25 Pin-Jui Ku , He Huang , Jean-Marie Lemercier , Subham Sekhar Sahoo , Zhehuai Chen , Ante Jukić

This paper presents Diffusion via Autoregressive models (D-AR), a new paradigm recasting the image diffusion process as a vanilla autoregressive procedure in the standard next-token-prediction fashion. We start by designing the tokenizer…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Ziteng Gao , Mike Zheng Shou

Diffusion language models hold the promise of fast parallel generation, while autoregressive (AR) models typically excel in quality due to their causal structure aligning naturally with language modeling. This raises a fundamental question:…

Computation and Language · Computer Science 2025-11-13 Jingyu Liu , Xin Dong , Zhifan Ye , Rishabh Mehta , Yonggan Fu , Vartika Singh , Jan Kautz , Ce Zhang , Pavlo Molchanov

Autoregressive (AR) models with diffusion heads have recently achieved strong text-to-audio performance, yet their iterative decoding and multi-step sampling process introduce high-latency issues. To address this bottleneck, we propose a…

While Diffusion Generative Models have achieved great success on image generation tasks, how to efficiently and effectively incorporate them into speech generation especially translation tasks remains a non-trivial problem. Specifically,…

Computation and Language · Computer Science 2023-10-27 Yongxin Zhu , Zhujin Gao , Xinyuan Zhou , Zhongyi Ye , Linli Xu

Diffusion models have significantly advanced the field of talking head generation (THG). However, slow inference speeds and prevalent non-autoregressive paradigms severely constrain the application of diffusion-based THG models. In this…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Haotian Wang , Yuzhe Weng , Jun Du , Haoran Xu , Xiaoyan Wu , Shan He , Bing Yin , Cong Liu , Qingfeng Liu

We introduce DiffuseST, a low-latency, direct speech-to-speech translation system capable of preserving the input speaker's voice zero-shot while translating from multiple source languages into English. We experiment with the synthesizer…

Animating virtual avatars to make co-speech gestures facilitates various applications in human-machine interaction. The existing methods mainly rely on generative adversarial networks (GANs), which typically suffer from notorious mode…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Lingting Zhu , Xian Liu , Xuanyu Liu , Rui Qian , Ziwei Liu , Lequan Yu

While diffusion and autoregressive (AR) models have significantly advanced generative modeling, they each present distinct limitations. AR models, which rely on causal attention, cannot exploit future context and suffer from slow generation…

Sound · Computer Science 2025-08-04 Yanqing Liu , Ruiqing Xue , Chong Zhang , Yufei Liu , Gang Wang , Bohan Li , Yao Qian , Lei He , Shujie Liu , Sheng Zhao

Diffusion models have gained significant attention in the realm of image generation due to their exceptional performance. Their success has been recently expanded to text generation via generating all tokens within a sequence concurrently.…

Computation and Language · Computer Science 2023-12-14 Tong Wu , Zhihao Fan , Xiao Liu , Yeyun Gong , Yelong Shen , Jian Jiao , Hai-Tao Zheng , Juntao Li , Zhongyu Wei , Jian Guo , Nan Duan , Weizhu Chen

Autoregressive models (ARMs) are hindered by slow sequential inference. While masked diffusion models (MDMs) offer a parallel alternative, they suffer from critical drawbacks: high computational overhead from precluding Key-Value (KV)…

Computation and Language · Computer Science 2026-03-06 Jia-Nan Li , Jian Guan , Wei Wu , Chongxuan Li

Autoregressive (AR) models have long dominated the landscape of large language models, driving progress across a wide range of tasks. Recently, diffusion-based language models have emerged as a promising alternative, though their advantages…

Machine Learning · Computer Science 2025-10-28 Mihir Prabhudesai , Mengning Wu , Amir Zadeh , Katerina Fragkiadaki , Deepak Pathak

Prior masked modeling motion generation methods predominantly study text-to-motion. We present DiMo, a discrete diffusion-style framework, which extends masked modeling to bidirectional text--motion understanding and generation. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Ning Zhang , Zhengyu Li , Kwong Weng Loh , Mingxi Xu , Qi Wang , Zhengyu Wen , Xiaoyu He , Wei Zhao , Kehong Gong , Mingyuan Zhang

The recent wave of large-scale text-to-image diffusion models has dramatically increased our text-based image generation abilities. These models can generate realistic images for a staggering variety of prompts and exhibit impressive…

Machine Learning · Computer Science 2023-09-14 Alexander C. Li , Mihir Prabhudesai , Shivam Duggal , Ellis Brown , Deepak Pathak

In image processing, one of the most challenging tasks is to render an image's semantic meaning using a variety of artistic approaches. Existing techniques for arbitrary style transfer (AST) frequently experience mode-collapse,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Onkar Susladkar , Gayatri Deshmukh , Sparsh Mittal , Parth Shastri

Diffusion models have recently been shown to be relevant for high-quality speech generation. Most work has been focused on generating spectrograms, and as such, they further require a subsequent model to convert the spectrogram to a…

Sound · Computer Science 2024-03-12 Roi Benita , Michael Elad , Joseph Keshet

Diffusion models, such as Stable Diffusion, have shown incredible performance on text-to-image generation. Since text-to-image generation often requires models to generate visual concepts with fine-grained details and attributes specified…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Xuehai He , Weixi Feng , Tsu-Jui Fu , Varun Jampani , Arjun Akula , Pradyumna Narayana , Sugato Basu , William Yang Wang , Xin Eric Wang

Diffusion models have achieved remarkable success in text-to-speech (TTS), even in zero-shot scenarios. Recent efforts aim to address the trade-off between inference speed and sound quality, often considered the primary drawback of…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-14 Changjin Han , Seokgi Lee , Gyuhyeon Nam , Gyeongsu Chae

Although voice conversion (VC) systems have shown a remarkable ability to transfer voice style, existing methods still have an inaccurate pitch and low speaker adaptation quality. To address these challenges, we introduce Diff-HierVC, a…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-09 Ha-Yeong Choi , Sang-Hoon Lee , Seong-Whan Lee
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