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The widespread application of automatic speech recognition (ASR) supports large-scale voice surveillance, raising concerns about privacy among users. In this paper, we concentrate on using adversarial examples to mitigate unauthorized…

Cryptography and Security · Computer Science 2025-04-02 Weifei Jin , Yuxin Cao , Junjie Su , Derui Wang , Yedi Zhang , Minhui Xue , Jie Hao , Jin Song Dong , Yixian Yang

This paper presents the results and analyses stemming from the first VoicePrivacy 2020 Challenge which focuses on developing anonymization solutions for speech technology. We provide a systematic overview of the challenge design with an…

The VoicePrivacy Challenge aims to promote the development of privacy preservation tools for speech technology by gathering a new community to define the tasks of interest and the evaluation methodology, and benchmarking solutions through a…

This study focuses on the First VoicePrivacy Attacker Challenge within the ICASSP 2025 Signal Processing Grand Challenge, which aims to develop speaker verification systems capable of determining whether two anonymized speech signals are…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-14 Yanzhe Zhang , Zhonghao Bi , Feiyang Xiao , Xuefeng Yang , Qiaoxi Zhu , Jian Guan

Voice anonymization aims to conceal speaker identity and attributes while preserving intelligibility, but current evaluations rely almost exclusively on Equal Error Rate (EER) that obscures whether adversaries can mount high-precision…

Cryptography and Security · Computer Science 2026-01-27 Efthymios Tsaprazlis , Thanathai Lertpetchpun , Tiantian Feng , Sai Praneeth Karimireddy , Shrikanth Narayanan

While persona-driven large language models (LLMs) and prompt-based text-to-speech (TTS) systems have advanced significantly, a usability gap arises when users attempt to generate voices matching their desired personas from implicit…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-22 Yejin Lee , Jaehoon Kang , Kyuhong Shim

Human speech conveys prosody, linguistic content, and speaker identity. This article investigates a novel speaker anonymization approach using an end-to-end network based on a Vector-Quantized Variational Auto-Encoder (VQ-VAE) to deal with…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Sotheara Leang , Anderson Augusma , Eric Castelli , Frédérique Letué , Sethserey Sam , Dominique Vaufreydaz

This paper investigates methods to effectively retrieve speaker information from the personalized speaker adapted neural network acoustic models (AMs) in automatic speech recognition (ASR). This problem is especially important in the…

Computation and Language · Computer Science 2022-05-02 Natalia Tomashenko , Salima Mdhaffar , Marc Tommasi , Yannick Estève , Jean-François Bonastre

The goal of voice anonymization is to modify an audio such that the true identity of its speaker is hidden. Research on this task is typically limited to the same English read speech datasets, thus the efficacy of current methods for other…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-03 Sarina Meyer , Ekaterina Kolos , Ngoc Thang Vu

Anonymity is a powerful component of many participatory media platforms that can afford people greater freedom of expression and protection from external coercion and interference. However, it can be difficult to effectively implement on…

Human-Computer Interaction · Computer Science 2024-08-27 Wonjune Kang , Margaret A. Hughes , Deb Roy

We address the challenge of preserving emotional content in streaming speaker anonymization (SA). Neural audio codec language models trained for audio continuation tend to degrade source emotion: content tokens discard emotional…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-09 Nikita Kuzmin , Kong Aik Lee , Eng Siong Chng

In this work, we propose a speaker anonymization pipeline that leverages high quality automatic speech recognition and synthesis systems to generate speech conditioned on phonetic transcriptions and anonymized speaker embeddings. Using…

Sound · Computer Science 2022-07-12 Sarina Meyer , Florian Lux , Pavel Denisov , Julia Koch , Pascal Tilli , Ngoc Thang Vu

Speaker anonymization seeks to conceal a speaker's identity while preserving the utility of their speech. The achieved privacy is commonly evaluated with a speaker recognition model trained on anonymized speech. Although this represents a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-26 Carlos Franzreb , Arnab Das , Tim Polzehl , Sebastian Möller

For many decades, research in speech technologies has focused upon improving reliability. With this now meeting user expectations for a range of diverse applications, speech technology is today omni-present. As result, a focus on security…

Responsible use of AI demands that we protect sensitive information without undermining the usefulness of data, an imperative that has become acute in the age of large language models. We address this challenge with an on-premise,…

Computation and Language · Computer Science 2026-03-19 Federico Albanese , Pablo Ronco , Nicolás D'Ippolito

Privacy-preserving voice protection approaches primarily suppress privacy-related information derived from paralinguistic attributes while preserving the linguistic content. Existing solutions focus particularly on single-speaker scenarios.…

Sound · Computer Science 2025-03-28 Xiaoxiao Miao , Ruijie Tao , Chang Zeng , Xin Wang

Anonymizing text that contains sensitive information is crucial for a wide range of applications. Existing techniques face the emerging challenges of the re-identification ability of large language models (LLMs), which have shown advanced…

Computation and Language · Computer Science 2025-06-19 Tianyu Yang , Xiaodan Zhu , Iryna Gurevych

The increasing use of cloud-based speech assistants has heightened the need for effective speech anonymization, which aims to obscure a speaker's identity while retaining critical information for subsequent tasks. One approach to achieving…

Artificial Intelligence · Computer Science 2024-10-22 Suhita Ghosh , Tim Thiele , Frederic Lorbeer , Frank Dreyer , Sebastian Stober

Most of the existing speaker anonymization research has focused on single-speaker audio, leading to the development of techniques and evaluation metrics optimized for such condition. This study addresses the significant challenge of speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-13 Natalia Tomashenko , Junichi Yamagishi , Xin Wang , Yun Liu , Emmanuel Vincent

Anonymization of voice seeks to conceal the identity of the speaker while maintaining the utility of speech data. However, residual speaker cues often persist, which pose privacy risks. We propose SegReConcat, a data augmentation method for…

Sound · Computer Science 2025-08-27 Ridwan Arefeen , Xiaoxiao Miao , Rong Tong , Aik Beng Ng , Simon See