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Current speaker anonymization methods, especially with self-supervised learning (SSL) models, require massive computational resources when hiding speaker identity. This paper proposes an effective and parameter-efficient speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-20 Xiaojiao Chen , Sheng Li , Jiyi Li , Hao Huang , Yang Cao , Liang He

Voice conversion for speaker anonymization is an emerging field in speech processing research. Many state-of-the-art approaches are based on the resynthesis of the phoneme posteriorgrams (PPG), the fundamental frequency (F0) of the input…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-14 Ünal Ege Gaznepoglu , Nils Peters

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

We introduce a novel method to improve the performance of the VoicePrivacy Challenge 2022 baseline B1 variants. Among the known deficiencies of x-vector-based anonymization systems is the insufficient disentangling of the input features. In…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-01 Ünal Ege Gaznepoglu , Anna Leschanowsky , Nils Peters

Anonymisation has the goal of manipulating speech signals in order to degrade the reliability of automatic approaches to speaker recognition, while preserving other aspects of speech, such as those relating to intelligibility and…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-02 Jose Patino , Natalia Tomashenko , Massimiliano Todisco , Andreas Nautsch , Nicholas Evans

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

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

Information on speaker characteristics can be useful as side information in improving speaker recognition accuracy. However, such information is often private. This paper investigates how privacy-preserving learning can improve a speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-07 Filip Granqvist , Matt Seigel , Rogier van Dalen , Áine Cahill , Stephen Shum , Matthias Paulik

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

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

Voice anonymisation can be used to help protect speaker privacy when speech data is shared with untrusted others. In most practical applications, while the voice identity should be sanitised, other attributes such as the spoken content…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-09 Michele Panariello , Massimiliano Todisco , Nicholas Evans

Emotion plays a significant role in speech interaction, conveyed through tone, pitch, and rhythm, enabling the expression of feelings and intentions beyond words to create a more personalized experience. However, most existing speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-02 Jixun Yao , Hexin Liu , Eng Siong Chng , Lei Xie

Voice anonymization protects speaker privacy by concealing identity while preserving linguistic and paralinguistic content. Self-supervised learning (SSL) representations encode linguistic features but preserve speaker traits. We propose a…

Sound · Computer Science 2025-08-19 Beilong Tang , Xiaoxiao Miao , Xin Wang , Ming Li

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…

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

Speech data carries a range of personal information, such as the speaker's identity and emotional state. These attributes can be used for malicious purposes. With the development of virtual assistants, a new generation of privacy threats…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-04 Hubert Nourtel , Pierre Champion , Denis Jouvet , Anthony Larcher , Marie Tahon

Speaker anonymization aims to conceal speaker-specific attributes in speech signals, making the anonymized speech unlinkable to the original speaker identity. Recent approaches achieve this by disentangling speech into content and speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-17 Kong Aik Lee , Zeyan Liu , Liping Chen , Zhenhua Ling

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

The proliferation of speech technologies and rising privacy legislation calls for the development of privacy preservation solutions for speech applications. These are essential since speech signals convey a wealth of rich, personal and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-01 Paul-Gauthier Noé , Jean-François Bonastre , Driss Matrouf , Natalia Tomashenko , Andreas Nautsch , Nicholas Evans

Existing privacy-preserving speech representation learning methods target a single application domain. In this paper, we present a novel framework to anonymize utterance-level speech embeddings generated by pre-trained encoders and show its…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-27 Minh Tran , Mohammad Soleymani