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A Study of F0 Modification for X-Vector Based Speech Pseudonymization 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 pseudonymization 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 pseudonymization 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 pseudonymization 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 <>
Submitted on : Thursday, January 21, 2021 - 12:14:48 AM
Last modification on : Tuesday, May 18, 2021 - 2:02:58 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 Pseudonymization Across Gender. PPAI 2021 - The Second AAAI Workshop on Privacy-Preserving Artificial Intelligence, Feb 2021, Virtual, China. ⟨hal-02995862v2⟩

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