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Zero-shot voice conversion (VC) aims to transfer the timbre from the source speaker to an arbitrary unseen speaker while preserving the original linguistic content. Despite recent advancements in zero-shot VC using language model-based or…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-11 Jixun Yao , Yuguang Yang , Yu Pan , Ziqian Ning , Jiaohao Ye , Hongbin Zhou , Lei Xie

Expressive text-to-speech systems have undergone significant advancements owing to prosody modeling, but conventional methods can still be improved. Traditional approaches have relied on the autoregressive method to predict the quantized…

Sound · Computer Science 2025-01-22 Hyung-Seok Oh , Sang-Hoon Lee , Seong-Whan Lee

Flow matching offers a robust and stable approach to training diffusion models. However, directly applying flow matching to neural vocoders can result in subpar audio quality. In this work, we present WaveFM, a reparameterized flow matching…

Sound · Computer Science 2025-03-24 Tianze Luo , Xingchen Miao , Wenbo Duan

One-shot voice conversion (VC) aims to convert speech from any source speaker to an arbitrary target speaker with only a few seconds of reference speech from the target speaker. This relies heavily on disentangling the speaker's identity…

Audio and Speech Processing · Electrical Eng. & Systems 2023-01-02 Yinghao Aaron Li , Cong Han , Nima Mesgarani

Recent progress in accelerating text-to-image diffusion models enables high-fidelity synthesis within a single denoising step. However, customizing the fast one-step models remains challenging, as existing methods consistently fail to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Yixiong Yang , Tao Wu , Senmao Li , Shiqi Yang , Yaxing Wang , Joost van de Weijer , Kai Wang

Video diffusion generation suffers from critical sampling efficiency bottlenecks, particularly for large-scale models and long contexts. Existing video acceleration methods, adapted from image-based techniques, lack a single-step…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Jiaxiang Cheng , Bing Ma , Xuhua Ren , Hongyi Henry Jin , Kai Yu , Peng Zhang , Wenyue Li , Yuan Zhou , Tianxiang Zheng , Qinglin Lu

Diffusion models have recently advanced photorealistic human synthesis, although practical talking-head generation (THG) remains constrained by high inference latency, temporal instability such as flicker and identity drift, and imperfect…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Soumya Mazumdar , Vineet Kumar Rakesh

Voice conversion (VC) is a task that transforms the source speaker's timbre, accent, and tones in audio into another one's while preserving the linguistic content. It is still a challenging work, especially in a one-shot setting.…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-09 Da-Yi Wu , Yen-Hao Chen , Hung-Yi Lee

Diffusion models can synthesize realistic co-speech video from audio for various applications, such as video creation and virtual agents. However, existing diffusion-based methods are slow due to numerous denoising steps and costly…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Beijia Lu , Ziyi Chen , Jing Xiao , Jun-Yan Zhu

Voice Conversion (VC) for unseen speakers, also known as zero-shot VC, is an attractive research topic as it enables a range of applications like voice customizing, animation production, and others. Recent work in this area made progress…

Sound · Computer Science 2022-06-01 Shijun Wang , Dimche Kostadinov , Damian Borth

Diffusion models have demonstrated excellent performance for real-world image super-resolution (Real-ISR), albeit at high computational costs. Most existing methods are trying to derive one-step diffusion models from multi-step counterparts…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Jianze Li , Jiezhang Cao , Zichen Zou , Xiongfei Su , Xin Yuan , Yulun Zhang , Yong Guo , Xiaokang Yang

Diffusion distillation represents a highly promising direction for achieving faithful text-to-image generation in a few sampling steps. However, despite recent successes, existing distilled models still do not provide the full spectrum of…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Nikita Starodubcev , Mikhail Khoroshikh , Artem Babenko , Dmitry Baranchuk

Diffusion models achieve high-quality sample generation at the cost of a lengthy multistep inference procedure. To overcome this, diffusion distillation techniques produce student generators capable of matching or surpassing the teacher in…

Machine Learning · Computer Science 2024-12-04 Yanke Song , Jonathan Lorraine , Weili Nie , Karsten Kreis , James Lucas

One of the main drawback of diffusion models is the slow inference time for image generation. Among the most successful approaches to addressing this problem are distillation methods. However, these methods require considerable…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Senmao Li , Taihang Hu , Joost van de Weijer , Fahad Shahbaz Khan , Tao Liu , Linxuan Li , Shiqi Yang , Yaxing Wang , Ming-Ming Cheng , Jian Yang

Diffusion speech enhancement on discrete audio codec features gain immense attention due to their improved speech component reconstruction capability. However, they usually suffer from high inference computational complexity due to multiple…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-30 Yihui Fu , Tim Fingscheidt

Diffusion-based image compression methods have achieved notable progress, delivering high perceptual quality at low bitrates. However, their practical deployment is hindered by significant inference latency and heavy computational overhead,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Yiwen Jia , Hao Wei , Yanhui Zhou , Chenyang Ge

Diffusion models have revolutionized text-to-image generation, but their real-world applications are hampered by the extensive time needed for hundreds of diffusion steps. Although progressive distillation has been proposed to speed up…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Yifan Zhang , Bryan Hooi

Recent hybrid video generation models combine autoregressive temporal dynamics with diffusion-based spatial denoising, but their sequential, iterative nature leads to error accumulation and long inference times. In this work, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Yongqi Yang , Huayang Huang , Xu Peng , Xiaobin Hu , Donghao Luo , Jiangning Zhang , Chengjie Wang , Yu Wu

Better disentanglement of speech representation is essential to improve the quality of voice conversion. Recently contrastive learning is applied to voice conversion successfully based on speaker labels. However, the performance of model…

Sound · Computer Science 2023-11-16 Yimin Deng , Xulong Zhang , Jianzong Wang , Ning Cheng , Jing Xiao

While many diffusion models have achieved impressive results in real-world video super-resolution (Real-VSR) by generating rich and realistic details, their reliance on multi-step sampling leads to slow inference. One-step networks like…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Bin Chen , Weiqi Li , Shijie Zhao , Xuanyu Zhang , Junlin Li , Li Zhang , Jian Zhang