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Voice privacy approaches that preserve the anonymity of speakers modify speech in an attempt to break the link with the true identity of the speaker. Current benchmarks measure speaker protection based on signal-to-signal comparisons. In…

Sound · Computer Science 2026-03-25 Mehtab Ur Rahman , Martha Larson , Cristian Tejedor-Garcia

Collecting speech data is an important step in training speech recognition systems and other speech-based machine learning models. However, the issue of privacy protection is an increasing concern that must be addressed. The current study…

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 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

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

Privacy-preserving voice conversion aims to remove only the attributes of speech audio that convey identity information, keeping other speech characteristics intact. This paper presents a mechanism for privacy-preserving voice conversion…

Sound · Computer Science 2024-09-24 Jacob J Webber , Oliver Watts , Gustav Eje Henter , Jennifer Williams , Simon King

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

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

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

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

Disentanglement-based speaker anonymization involves decomposing speech into a semantically meaningful representation, altering the speaker embedding, and resynthesizing a waveform using a neural vocoder. State-of-the-art systems of this…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-23 Ünal Ege Gaznepoglu , Nils Peters

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

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

Speaker embeddings are ubiquitous, with applications ranging from speaker recognition and diarization to speech synthesis and voice anonymisation. The amount of information held by these embeddings lends them versatility, but also raises…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-12 Francisco Teixeira , Alberto Abad , Bhiksha Raj , Isabel Trancoso

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

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

Adolescent suicide is a critical global health issue, and speech provides a cost-effective modality for automatic suicide risk detection. Given the vulnerable population, protecting speaker identity is particularly important, as speech…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-26 Ziyun Cui , Sike Jia , Yang Lin , Yinan Duan , Diyang Qu , Runsen Chen , Chao Zhang , Chang Lei , Wen Wu

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

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…

State-of-the-art approaches to speaker anonymization typically employ some form of perturbation function to conceal speaker information contained within an x-vector embedding, then resynthesize utterances in the voice of a new…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-06 Michele Panariello , Massimiliano Todisco , Nicholas Evans