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The increasing realism of synthetic speech generated by advanced text-to-speech (TTS) models, coupled with post-processing and laundering techniques, presents a significant challenge for audio forensic detection. In this paper, we introduce…

The performance of deep neural network-based speech enhancement systems typically increases with the training dataset size. However, studies that investigated the effect of training dataset size on speech enhancement performance did not…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-10 Philippe Gonzalez , Zheng-Hua Tan , Jan Østergaard , Jesper Jensen , Tommy Sonne Alstrøm , Tobias May

This work introduces Sample-Efficient Speech Diffusion (SESD), an algorithm for effective speech synthesis in modest data regimes through latent diffusion. It is based on a novel diffusion architecture, that we call U-Audio Transformer…

Sound · Computer Science 2024-09-06 Justin Lovelace , Soham Ray , Kwangyoun Kim , Kilian Q. Weinberger , Felix Wu

Detecting diffusion-generated images has recently grown into an emerging research area. Existing diffusion-based datasets predominantly focus on general image generation. However, facial forgeries, which pose a more severe social risk, have…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Harry Cheng , Yangyang Guo , Tianyi Wang , Liqiang Nie , Mohan Kankanhalli

Whisper generation is constrained by the difficulty of data collection. Because whispered speech has low acoustic amplitude, high-fidelity recording is challenging. In this paper, we introduce WhispSynth, a large-scale multilingual corpus…

Sound · Computer Science 2026-03-17 Tianyi Tan , Jiaxin Ye , Yuanming Zhang , Xiaohuai Le , Xianjun Xia , Chuanzeng Huang , Jing Lu

Online Speech Enhancement was mainly reserved for predictive models. A key advantage of these models is that for an incoming signal frame from a stream of data, the model is called only once for enhancement. In contrast, generative Speech…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-22 Bunlong Lay , Rostislav Makarov , Simon Welker , Maris Hillemann , Timo Gerkmann

Speech-driven 3D facial animation synthesis has been a challenging task both in industry and research. Recent methods mostly focus on deterministic deep learning methods meaning that given a speech input, the output is always the same.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Stefan Stan , Kazi Injamamul Haque , Zerrin Yumak

Scene text detection techniques have garnered significant attention due to their wide-ranging applications. However, existing methods have a high demand for training data, and obtaining accurate human annotations is labor-intensive and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Ling Fu , Zijie Wu , Yingying Zhu , Yuliang Liu , Xiang Bai

AI-synthesized speech, also known as deepfake speech, has recently raised significant concerns due to the rapid advancement of speech synthesis and speech conversion techniques. Previous works often rely on distinguishing synthesizer…

Sound · Computer Science 2024-11-15 Kuiyuan Zhang , Zhongyun Hua , Yushu Zhang , Yifang Guo , Tao Xiang

Recent research has demonstrated impressive results in video-to-speech synthesis which involves reconstructing speech solely from visual input. However, previous works have struggled to accurately synthesize speech due to a lack of…

Sound · Computer Science 2023-08-16 Jeongsoo Choi , Joanna Hong , Yong Man Ro

Diffusion models have attracted a lot of attention in recent years. These models view speech generation as a continuous-time process. For efficient training, this process is typically restricted to additive Gaussian noising, which is…

Machine Learning · Computer Science 2025-10-14 Xiaozhou Tan , Minghui Zhao , Anton Ragni

The rapid advancement of generative models has enabled highly realistic audio deepfakes, yet current detectors suffer from a critical bias problem, leading to poor generalization across unseen datasets. This paper proposes Artifact-Focused…

ASVspoof 5 is the fifth edition in a series of challenges which promote the study of speech spoofing and deepfake attacks as well as the design of detection solutions. We introduce the ASVspoof 5 database which is generated in a…

The remarkable ease of use of diffusion models for image generation has led to a proliferation of synthetic content online. While these models are often employed for legitimate purposes, they are also used to generate fake images that…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Giulia Bertazzini , Daniele Baracchi , Dasara Shullani , Isao Echizen , Alessandro Piva

Current speech language models generate responses directly without explicit reasoning, leading to errors that cannot be corrected once audio is produced. We introduce \textbf{``Silent Thought, Spoken Answer''} -- a paradigm where speech…

Computation and Language · Computer Science 2026-02-02 Yuxuan Lou , Ziming Wu , Yaochen Wang , Yong Liu , Yingxuan Ren , Fuming Lai , Shaobing Lian , Jie Tang , Yang You

With the continuous development of deep learning-based speech conversion and speech synthesis technologies, the cybersecurity problem posed by fake audio has become increasingly serious. Previously proposed models for defending against fake…

Sound · Computer Science 2025-06-04 Chi Ding , Junxiao Xue , Cong Wang , Hao Zhou

With the rapid development of deep learning techniques, the generation and counterfeiting of multimedia material are becoming increasingly straightforward to perform. At the same time, sharing fake content on the web has become so simple…

Multimedia · Computer Science 2022-09-19 Davide Salvi , Brian Hosler , Paolo Bestagini , Matthew C. Stamm , Stefano Tubaro

Automatic speech recognition systems are part of people's daily lives, embedded in personal assistants and mobile phones, helping as a facilitator for human-machine interaction while allowing access to information in a practically intuitive…

Sound · Computer Science 2021-10-05 Julio Cesar Duarte , Sérgio Colcher

The growing sophistication of speech generated by Artificial Intelligence (AI) has introduced new challenges in audio deepfake detection. Text-to-speech (TTS) and voice conversion (VC) technologies can create highly convincing synthetic…

Sound · Computer Science 2026-03-17 Vamshi Nallaguntla , Aishwarya Fursule , Shruti Kshirsagar , Anderson R. Avila

Denoising diffusion probabilistic models (DDPMs) have recently achieved leading performances in many generative tasks. However, the inherited iterative sampling process costs hindered their applications to speech synthesis. This paper…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-22 Rongjie Huang , Max W. Y. Lam , Jun Wang , Dan Su , Dong Yu , Yi Ren , Zhou Zhao