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A Study of F0 Modification for X-Vector Based Speech Pseudo-Anonymization Across Gender

Pierre Champion 1 Denis Jouvet 1 Anthony Larcher 2 
1 MULTISPEECH - Speech Modeling for Facilitating Oral-Based Communication
Inria Nancy - Grand Est, LORIA - NLPKD - Department of Natural Language Processing & Knowledge Discovery
Abstract : Speech pseudo-anonymization aims at altering a speech signal to map the identifiable personal characteristics of a given speaker to another identity. In other words, it aims to hide the source speaker identity while preserving the intelligibility of the spoken content. This study takes place in the VoicePrivacy 2020 challenge framework, where the baseline system performs pseudo-anonymization by modifying x-vector information to match a target speaker while keeping the fundamental frequency (F0) unchanged. We propose to alter other paralin-guistic features, here F0, and analyze the impact of this modification across gender. We found that the proposed F0 modification always improves pseudo-anonymization. We observed that both source and target speaker genders affect the performance gain when modifying the F0.
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https://hal.archives-ouvertes.fr/hal-02995862
Contributor : Pierre CHAMPION Connect in order to contact the contributor
Submitted on : Thursday, January 21, 2021 - 12:14:48 AM
Last modification on : Tuesday, March 15, 2022 - 1:54:32 PM

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  • HAL Id : hal-02995862, version 2

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Pierre Champion, Denis Jouvet, Anthony Larcher. A Study of F0 Modification for X-Vector Based Speech Pseudo-Anonymization Across Gender. The Second AAAI Workshop on Privacy-Preserving Artificial Intelligence (PPAI)., Nov 2020, online, United States. ⟨hal-02995862v2⟩

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