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Voice assistive technologies have given rise to far-reaching privacy and security concerns. In this paper we investigate whether modular automatic speech recognition (ASR) can improve privacy in voice assistive systems by combining…

Computation and Language · Computer Science 2021-04-05 Ranya Aloufi , Hamed Haddadi , David Boyle

Voice anonymization systems aim to protect speaker privacy by obscuring vocal traits while preserving the linguistic content relevant for downstream applications. However, because these linguistic cues remain intact, they can be exploited…

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

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

In this work, we describe our submissions for the Voice Privacy Challenge 2024. Rather than proposing a novel speech anonymization system, we enhance the provided baselines to meet all required conditions and improve evaluated metrics.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-11 Nikita Kuzmin , Hieu-Thi Luong , Jixun Yao , Lei Xie , Kong Aik Lee , Eng Siong Chng

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

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

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

Qualitative research often contains personal, contextual, and organizational details that pose privacy risks if not handled appropriately. Manual anonymization is time-consuming, inconsistent, and frequently omits critical identifiers.…

Artificial Intelligence · Computer Science 2026-01-22 Aisvarya Adeseye , Jouni Isoaho , Seppo Virtanen , Mohammad Tahir

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

The social media revolution has produced a plethora of web services to which users can easily upload and share multimedia documents. Despite the popularity and convenience of such services, the sharing of such inherently personal data,…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-03 Fuming Fang , Xin Wang , Junichi Yamagishi , Isao Echizen , Massimiliano Todisco , Nicholas Evans , Jean-Francois Bonastre

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…

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

With the popularity of virtual assistants (e.g., Siri, Alexa), the use of speech recognition is now becoming more and more widespread.However, speech signals contain a lot of sensitive information, such as the speaker's identity, which…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-21 Pierre Champion , Denis Jouvet , Anthony Larcher

The current privacy evaluation for speaker anonymization often overestimates privacy when a same-gender target selection algorithm (TSA) is used, although this TSA leaks the speaker's gender and should hence be more vulnerable. We…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-21 Carlos Franzreb , Arnab Das , Tim Polzehl , Sebastian Möller

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

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

Voice-enabled interactions provide more human-like experiences in many popular IoT systems. Cloud-based speech analysis services extract useful information from voice input using speech recognition techniques. The voice signal is a rich…

Cryptography and Security · Computer Science 2019-08-13 Ranya Aloufi , Hamed Haddadi , David Boyle

In speaker anonymization, speech recordings are modified in a way that the identity of the speaker remains hidden. While this technology could help to protect the privacy of individuals around the globe, current research restricts this by…

Computation and Language · Computer Science 2024-10-08 Sarina Meyer , Florian Lux , Ngoc Thang Vu

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

Sharing real-world speech utterances is key to the training and deployment of voice-based services. However, it also raises privacy risks as speech contains a wealth of personal data. Speaker anonymization aims to remove speaker information…