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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

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

Given the speech generation framework that represents the speaker attribute with an embedding vector, asynchronous voice anonymization can be achieved by modifying the speaker embedding derived from the original speech. However, the…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-08 Rui Wang , Liping Chen , Kong Aik Lee , Zhengpeng Zha , Zhenhua Ling

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

Automatic speaker verification (ASV) systems use a playback detector to filter out playback attacks and ensure verification reliability. Since current playback detection models are almost always trained using genuine and played-back speech,…

Sound · Computer Science 2018-09-14 Fuming Fang , Junichi Yamagishi , Isao Echizen , Md Sahidullah , Tomi Kinnunen

Thanks to the growing availability of spoofing databases and rapid advances in using them, systems for detecting voice spoofing attacks are becoming more and more capable, and error rates close to zero are being reached for the ASVspoof2015…

Audio and Speech Processing · Electrical Eng. & Systems 2018-03-05 Jaime Lorenzo-Trueba , Fuming Fang , Xin Wang , Isao Echizen , Junichi Yamagishi , Tomi Kinnunen

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

Speech signals contain a lot of sensitive information, such as the speaker's identity, which raises privacy concerns when speech data get collected. Speaker anonymization aims to transform a speech signal to remove the source speaker's…

Sound · Computer Science 2023-01-16 Pierre Champion , Denis Jouvet , Anthony Larcher

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

In recent years, the need for privacy preservation when manipulating or storing personal data, including speech , has become a major issue. In this paper, we present a system addressing the speaker-level anonymization problem. We propose…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-29 Francesco Nespoli , Daniel Barreda , Joerg Bitzer , Patrick A. Naylor

Speaker anonymization aims to protect the privacy of speakers while preserving spoken linguistic information from speech. Current mainstream neural network speaker anonymization systems are complicated, containing an F0 extractor, speaker…

Sound · Computer Science 2022-04-28 Xiaoxiao Miao , Xin Wang , Erica Cooper , Junichi Yamagishi , Natalia Tomashenko

The fast increase of web services and mobile apps, which collect personal data from users, increases the risk that their privacy may be severely compromised. In particular, the increasing variety of spoken language interfaces and voice…

Speaker embedding based zero-shot Text-to-Speech (TTS) systems enable high-quality speech synthesis for unseen speakers using minimal data. However, these systems are vulnerable to adversarial attacks, where an attacker introduces…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-07 Ze Li , Yao Shi , Yunfei Xu , Ming Li

Voice anonymisation is used to conceal voice identity while preserving linguistic content. Even if anonymisation seems strong, non-timbral cues such as accent that remain post-anonymisation can help re-identification and reveal sensitive…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Rayane Bakari , Olivier Le Blouch , Nicolas Gengembre , Nicholas Evans , Michele Panariello

In this paper, we present SANE-TTS, a stable and natural end-to-end multilingual TTS model. By the difficulty of obtaining multilingual corpus for given speaker, training multilingual TTS model with monolingual corpora is unavoidable. We…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-28 Hyunjae Cho , Wonbin Jung , Junhyeok Lee , Sang Hoon Woo

We present a method for audio denoising that combines processing done in both the time domain and the time-frequency domain. Given a noisy audio clip, the method trains a deep neural network to fit this signal. Since the fitting is only…

Sound · Computer Science 2020-06-11 Michael Michelashvili , Lior Wolf

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

Accent conversion aims to convert the accent of a source speech to a target accent, meanwhile preserving the speaker's identity. This paper introduces a novel non-autoregressive framework for accent conversion that learns accent-agnostic…

Computation and Language · Computer Science 2024-01-09 Xi Chen , Jiakun Pei , Liumeng Xue , Mingyang Zhang

Modern zero-shot text-to-speech (TTS) models offer unprecedented expressivity but also pose serious crime risks, as they can synthesize voices of individuals who never consented. In this context, speaker unlearning aims to prevent the…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-29 Myungjin Lee , Eunji Shin , Jiyoung Lee

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