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Automatic Speaker Diarization (ASD) is an enabling technology with numerous applications, which deals with recordings of multiple speakers, raising special concerns in terms of privacy. In fact, in remote settings, where recordings are…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-19 Francisco Teixeira , Alberto Abad , Bhiksha Raj , Isabel Trancoso

We propose DarkStream, a streaming speech synthesis model for real-time speaker anonymization. To improve content encoding under strict latency constraints, DarkStream combines a causal waveform encoder, a short lookahead buffer, and…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-08 Waris Quamer , Ricardo Gutierrez-Osuna

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

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

The recently proposed x-vector based anonymization scheme converts any input voice into that of a random pseudo-speaker. In this paper, we present a flexible pseudo-speaker selection technique as a baseline for the first VoicePrivacy…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Brij Mohan Lal Srivastava , Natalia Tomashenko , Xin Wang , Emmanuel Vincent , Junichi Yamagishi , Mohamed Maouche , Aurélien Bellet , Marc Tommasi

Speaker anonymization is an effective privacy protection solution that conceals the speaker's identity while preserving the linguistic content and paralinguistic information of the original speech. To establish a fair benchmark and…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-05 Jixun Yao , Nikita Kuzmin , Qing Wang , Pengcheng Guo , Ziqian Ning , Dake Guo , Kong Aik Lee , Eng-Siong Chng , Lei Xie

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

In this paper, we present a Distribution-Preserving Voice Anonymization technique, as our submission to the VoicePrivacy Challenge 2020. We observe that the challenge baseline system generates fake X-vectors which are very similar to each…

Sound · Computer Science 2021-01-06 Henry Turner , Giulio Lovisotto , Ivan Martinovic

This paper presents the NWPU-ASLP speaker anonymization system for VoicePrivacy 2022 Challenge. Our submission does not involve additional Automatic Speaker Verification (ASV) model or x-vector pool. Our system consists of four modules,…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-27 Jixun Yao , Qing Wang , Li Zhang , Pengcheng Guo , Yuhao Liang , Lei Xie

Children are one of the most under-represented groups in speech technologies, as well as one of the most vulnerable in terms of privacy. Despite this, anonymization techniques targeting this population have received little attention. In…

Computers and Society · Computer Science 2025-06-05 Ajinkya Kulkarni , Francisco Teixeira , Enno Hermann , Thomas Rolland , Isabel Trancoso , Mathew Magimai Doss

In this paper, we introduce a streaming keyphrase detection system that can be easily customized to accurately detect any phrase composed of words from a large vocabulary. The system is implemented with an end-to-end trained automatic…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-16 Rajeev Rikhye , Quan Wang , Qiao Liang , Yanzhang He , Ding Zhao , Yiteng , Huang , Arun Narayanan , Ian McGraw

Advances in voice conversion and text-to-speech synthesis have made automatic speaker verification (ASV) systems more susceptible to spoofing attacks. This work explores modest refinements to the AASIST anti-spoofing architecture. It…

Sound · Computer Science 2025-07-17 Ivan Viakhirev , Daniil Sirota , Aleksandr Smirnov , Kirill Borodin

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

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

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

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

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

The trend of scaling up speech generation models poses a threat of biometric information leakage of the identities of the voices in the training data, raising privacy and security concerns. In this paper, we investigate training…

Audio and Speech Processing · Electrical Eng. & Systems 2024-05-21 Wen-Chin Huang , Yi-Chiao Wu , Tomoki Toda

Audio is a rich sensing modality that is useful for a variety of human activity recognition tasks. However, the ubiquitous nature of smartphones and smart speakers with always-on microphones has led to numerous privacy concerns and a lack…

Speaker anonymization is an effective privacy protection solution designed to conceal the speaker's identity while preserving the linguistic content and para-linguistic information of the original speech. While most prior studies focus…

Audio and Speech Processing · Electrical Eng. & Systems 2024-07-17 Jixun Yao , Qing Wang , Pengcheng Guo , Ziqian Ning , Yuguang Yang , Yu Pan , Lei Xie