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Voice anonymization has been developed as a technique for preserving privacy by replacing the speaker's voice in a speech signal with that of a pseudo-speaker, thereby obscuring the original voice attributes from machine recognition and…

Sound · Computer Science 2024-11-13 Rui Wang , Liping Chen , Kong AiK Lee , Zhen-Hua Ling

In the era of big data, remarkable advancements have been achieved in personalized speech generation techniques that utilize speaker attributes, including voice and speaking style, to generate deepfake speech. This has also amplified global…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-10 Liping Chen , Kong Aik Lee , Zhen-Hua Ling , Xin Wang , Rohan Kumar Das , Tomoki Toda , Haizhou Li

Speaker anonymization systems hide the identity of speakers while preserving other information such as linguistic content and emotions. To evaluate their privacy benefits, attacks in the form of automatic speaker verification (ASV) systems…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-21 Ünal Ege Gaznepoglu , Anna Leschanowsky , Ahmad Aloradi , Prachi Singh , Daniel Tenbrinck , Emanuël A. P. Habets , Nils Peters

We present results and analyses from the third VoicePrivacy Challenge held in 2024, which focuses on advancing voice anonymization technologies. The task was to develop a voice anonymization system for speech data that conceals a speaker's…

Advances in speech technology now allow unprecedented access to personally identifiable information through speech. To protect such information, the differential privacy field has explored ways to anonymize speech while preserving its…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-06 Zexin Cai , Henry Li Xinyuan , Ashi Garg , Leibny Paola García-Perera , Kevin Duh , Sanjeev Khudanpur , Nicholas Andrews , Matthew Wiesner

Most recent speech privacy efforts have focused on anonymizing acoustic speaker attributes but there has not been as much research into protecting information from speech content. We introduce a toy problem that explores an emerging type of…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-09 Jennifer Williams , Karla Pizzi , Paul-Gauthier Noe , Sneha Das

Speech data conveys sensitive speaker attributes like identity or accent. With a small amount of found data, such attributes can be inferred and exploited for malicious purposes: voice cloning, spoofing, etc. Anonymization aims to make the…

Computation and Language · Computer Science 2020-02-14 Brij Mohan Lal Srivastava , Nathalie Vauquier , Md Sahidullah , Aurélien Bellet , Marc Tommasi , Emmanuel Vincent

Voice anonymisation aims to conceal the voice identity of speakers in speech recordings. Privacy protection is usually estimated from the difficulty of using a speaker verification system to re-identify the speaker post-anonymisation.…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-31 Michele Panariello , Sarina Meyer , Pierre Champion , Xiaoxiao Miao , Massimiliano Todisco , Ngoc Thang Vu , Nicholas Evans

The growing reliance on large-scale speech data has made privacy protection a critical concern. However, existing anonymization approaches often degrade data utility, for example by disrupting acoustic continuity or reducing vocal…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-21 Yunchong Xiao , Yuxiang Zhao , Ziyang Ma , Shuai Wang , Kai Yu , Jiachun Liao , Xie Chen

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

In this paper, we present AltVoice -- a system designed to help user's protect their privacy when using remotely accessed voice services. The system allows a user to conceal their true voice identity information with no cooperation from the…

Cryptography and Security · Computer Science 2022-02-15 Henry Turner , Giulio Lovisotto , Simon Eberz , Ivan Martinovic

Privacy and security are major concerns when communicating speech signals to cloud services such as automatic speech recognition (ASR) and speech emotion recognition (SER). Existing solutions for speech anonymization mainly focus on voice…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-31 Minh Tran , Mohammad Soleymani

Speaker anonymization aims to conceal a speaker's identity while preserving content information in speech. Current mainstream neural-network speaker anonymization systems disentangle speech into prosody-related, content, and speaker…

Sound · Computer Science 2023-09-14 Xiaoxiao Miao , Xin Wang , Erica Cooper , Junichi Yamagishi , Natalia Tomashenko

Speaker anonymization is the task of modifying a speech recording such that the original speaker cannot be identified anymore. Since the first Voice Privacy Challenge in 2020, along with the release of a framework, the popularity of this…

Sound · Computer Science 2023-12-25 Sarina Meyer , Xiaoxiao Miao , Ngoc Thang Vu

The vast majority of approaches to speaker anonymization involve the extraction of fundamental frequency estimates, linguistic features and a speaker embedding which is perturbed to obfuscate the speaker identity before an anonymized speech…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-15 Michele Panariello , Francesco Nespoli , Massimiliano Todisco , Nicholas Evans

In an age of voice-enabled technology, voice anonymization offers a solution to protect people's privacy, provided these systems work equally well across subgroups. This study investigates bias in voice anonymization systems within the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-28 Anna Leschanowsky , Ünal Ege Gaznepoglu , Nils Peters

While audio recordings in real life provide insights into social dynamics and conversational behavior, they also raise concerns about the privacy of personal, sensitive data. This article explores the effectiveness of restricting recordings…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-04 Jule Pohlhausen , Jörg Bitzer

We revisit the privacy-utility tradeoff of x-vector speaker anonymization. Existing approaches quantify privacy through training complex speaker verification or identification models that are later used as attacks. Instead, we propose a…

Cryptography and Security · Computer Science 2025-05-15 Luke Bauer , Wenxuan Bao , Malvika Jadhav , Vincent Bindschaedler

Voice conversion for speaker anonymization is an emerging concept for privacy protection. In a deep learning setting, this is achieved by extracting multiple features from speech, altering the speaker identity, and waveform synthesis.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-30 Ünal Ege Gaznepoglu , Nils Peters

In order to protect the privacy of speech data, speaker anonymization aims for hiding the identity of a speaker by changing the voice in speech recordings. This typically comes with a privacy-utility trade-off between protection of…

Sound · Computer Science 2022-10-21 Sarina Meyer , Pascal Tilli , Pavel Denisov , Florian Lux , Julia Koch , Ngoc Thang Vu