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The rise of synthetic media has blurred the boundary between reality and fabrication under the evolving power of artificial intelligence, fueling an infodemic that erodes public trust in cyberspace. For digital imagery, a multitude of…

Cryptography and Security · Computer Science 2026-05-01 Ching-Chun Chang , Isao Echizen

Untrustworthy users can misuse image generators to synthesize high-quality deepfakes and engage in unethical activities. Watermarking deters misuse by marking generated content with a hidden message, enabling its detection using a secret…

Cryptography and Security · Computer Science 2024-01-23 Nils Lukas , Abdulrahman Diaa , Lucas Fenaux , Florian Kerschbaum

Speech deepfake detection has achieved remarkable success in clean environments but faces significant challenges in complex, real-world scenarios where speech is often mixed with background music or noise. Current state-of-the-art methods…

Sound · Computer Science 2026-05-25 Qingcao Li , Yipeng Lin , Weichen Lian , Zhongjie Ba , Peng Cheng , Zhichao Lian

Neural Speech Codecs face a fundamental trade-off at low bitrates: preserving acoustic fidelity often compromises semantic richness. To address this, we introduce SACodec, a novel codec built upon an asymmetric dual-quantizer that employs…

Sound · Computer Science 2025-12-25 Zhongren Dong , Bin Wang , Jing Han , Haotian Guo , Xiaojun Mo , Yimin Cao , Zixing Zhang

Advances in AI technology have made voice cloning increasingly accessible, leading to a rise in fraud involving AI-generated audio forgeries. This highlights the need to covertly embed information and verify the authenticity and integrity…

Cryptography and Security · Computer Science 2024-08-28 Guang Yang

Noise robustness remains a critical challenge for deploying neural speech codecs in real-world acoustic scenarios where background noise is often inevitable. A key observation we make is that even slight input noise perturbations can cause…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-14 Rui-Chen Zheng , Yang Ai , Hui-Peng Du , Li-Rong Dai

Diffusion-based speech generation has achieved remarkable fidelity, increasing the risk of misuse and unauthorized redistribution. However, most existing generative speech watermarking methods are developed for GAN-based pipelines, and…

Multimedia · Computer Science 2026-02-17 Yue Li , Weizhi Liu , Kaiqing Lin , Dongdong Lin , Kassem Kallas

The optimization of a wavelet-based algorithm to improve speech intelligibility along with the full data set and results are reported. The discrete-time speech signal is split into frequency sub-bands via a multi-level discrete wavelet…

Sound · Computer Science 2022-07-25 Tianqu Kang , Anh-Dung Dinh , Binghong Wang , Tianyuan Du , Yijia Chen , Kevin Chau

We revisit watermarking techniques based on pre-trained deep networks, in the light of self-supervised approaches. We present a way to embed both marks and binary messages into their latent spaces, leveraging data augmentation at marking…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Pierre Fernandez , Alexandre Sablayrolles , Teddy Furon , Hervé Jégou , Matthijs Douze

Generative code models (GCMs) significantly enhance development efficiency through automated code generation and code summarization. However, building and training these models require computational resources and time, necessitating…

Cryptography and Security · Computer Science 2025-07-01 Haoxuan Li , Jiale Zhang , Xiaobing Sun , Xiapu Luo

Watermarking has recently emerged as an effective strategy for detecting the generations of large language models (LLMs). The strength of a watermark typically depends strongly on the entropy afforded by the language model and the set of…

Computation and Language · Computer Science 2026-02-05 Dara Bahri , John Wieting

We present the first in depth study on the robustness of existing watermarking techniques applied to code generated by large language models (LLMs). As LLMs increasingly contribute to software development, watermarking has emerged as a…

Cryptography and Security · Computer Science 2025-08-21 Tarun Suresh , Shubham Ugare , Gagandeep Singh , Sasa Misailovic

Watermarking has emerged as a pivotal solution for content traceability and intellectual property protection in Large Vision-Language Models (LVLMs). However, vision-agnostic watermarks may introduce visually irrelevant tokens and disrupt…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Yue Li , Xin Yi , Dongsheng Shi , Yongyi Cui , Gerard de Melo , Linlin Wang

With recent advances in speech synthesis including text-to-speech (TTS) and voice conversion (VC) systems enabling the generation of ultra-realistic audio deepfakes, there is growing concern about their potential misuse. However, most…

Sound · Computer Science 2024-04-24 Zuheng Kang , Yayun He , Botao Zhao , Xiaoyang Qu , Junqing Peng , Jing Xiao , Jianzong Wang

Invisible watermarking for autoregressive (AR) image generation has recently gained attention as a means of protecting image ownership and tracing AI-generated content. However, existing approaches suffer from three key limitations: (1)…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Yigit Yilmaz , Elena Petrova , Mehmet Kaya , Lucia Rossi , Amir Rahman

As generative AI models produce increasingly realistic output, both academia and industry are focusing on the ability to detect whether an output was generated by an AI model or not. Many of the research efforts and policy discourse are…

Cryptography and Security · Computer Science 2025-04-21 Houssam Kherraz

The rapid spread of text generated by large language models (LLMs) makes it increasingly difficult to distinguish authentic human writing from machine output. Watermarking offers a promising solution: model owners can embed an imperceptible…

Cryptography and Security · Computer Science 2025-11-04 Shingo Kodama , Haya Diwan , Lucas Rosenblatt , R. Teal Witter , Niv Cohen

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

Speech coding facilitates the transmission of speech over low-bandwidth networks with minimal distortion. Neural-network based speech codecs have recently demonstrated significant improvements in quality over traditional approaches. While…

Sound · Computer Science 2022-07-07 Ali Siahkoohi , Michael Chinen , Tom Denton , W. Bastiaan Kleijn , Jan Skoglund

Replay attacks remain a critical vulnerability for automatic speaker verification systems, particularly in real-time voice assistant applications. In this work, we propose acoustic maps as a novel spatial feature representation for replay…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-21 Michael Neri , Tuomas Virtanen