Search Results for author: Denis Jouvet

Found 17 papers, 1 papers with code

Adapting Language Models When Training on Privacy-Transformed Data

no code implementations LREC 2022 Tugtekin Turan, Dietrich Klakow, Emmanuel Vincent, Denis Jouvet

In recent years, voice-controlled personal assistants have revolutionized the interaction with smart devices and mobile applications.

Evaluation of Speaker Anonymization on Emotional Speech

no code implementations15 Apr 2023 Hubert Nourtel, Pierre Champion, Denis Jouvet, Anthony Larcher, Marie Tahon

This paper studies the impact of the speaker anonymization baseline system of the VPC on emotional information present in speech utterances.

Automatic Speech Recognition Emotion Recognition +3

Privacy-Preserving Speech Representation Learning using Vector Quantization

no code implementations15 Mar 2022 Pierre Champion, Denis Jouvet, Anthony Larcher

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 raises privacy concerns. The presented experiments show that the representations extracted by the deep layers of speech recognition networks contain speaker information. This paper aims to produce an anonymous representation while preserving speech recognition performance. To this end, we propose to use vector quantization to constrain the representation space and induce the network to suppress the speaker identity. The choice of the quantization dictionary size allows to configure the trade-off between utility (speech recognition) and privacy (speaker identity concealment).

Privacy Preserving Quantization +3

On the invertibility of a voice privacy system using embedding alignement

1 code implementation8 Oct 2021 Pierre Champion, Thomas Thebaud, Gaël Le Lan, Anthony Larcher, Denis Jouvet

This paper explores various attack scenarios on a voice anonymization system using embeddings alignment techniques.

Translation

Evaluating X-vector-based Speaker Anonymization under White-box Assessment

no code implementations24 Sep 2021 Pierre Champion, Denis Jouvet, Anthony Larcher

In the scenario of the Voice Privacy challenge, anonymization is achieved by converting all utterances from a source speaker to match the same target identity; this identity being randomly selected.

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

no code implementations21 Jan 2021 Pierre Champion, Denis Jouvet, Anthony Larcher

Speech pseudonymization aims at altering a speech signal to map the identifiable personal characteristics of a given speaker to another identity.

Adaptation de domaine non supervis\'ee pour la reconnaissance de la langue par r\'egularisation d'un r\'eseau de neurones (Unsupervised domain adaptation for language identification by regularization of a neural network)

no code implementations JEPTALNRECITAL 2020 Rapha{\"e}l Duroselle, Denis Jouvet, Irina Illina

Sur le corpus RATS, pour sept des huit canaux radio {\'e}tudi{\'e}s, l{'}approche permet, sans utiliser de donn{\'e}es annot{\'e}es du domaine cible, de surpasser la performance d{'}un syst{\`e}me entra{\^\i}n{\'e} de fa{\c{c}}on supervis{\'e}e avec des donn{\'e}es annot{\'e}es de ce domaine.

Language Identification Unsupervised Domain Adaptation

An enhanced automatic speech recognition system for Arabic

no code implementations WS 2017 Mohamed Amine Menacer, Odile Mella, Dominique Fohr, Denis Jouvet, David Langlois, Kamel Smaili

Despite all the classical techniques for Automatic Speech Recognition (ASR), which can be efficiently applied to Arabic speech recognition, it is essential to take into consideration the language specificities to improve the system performance.

Arabic Speech Recognition Automatic Speech Recognition +2

The IFCASL Corpus of French and German Non-native and Native Read Speech

no code implementations LREC 2016 Juergen Trouvain, Anne Bonneau, Vincent Colotte, Camille Fauth, Dominique Fohr, Denis Jouvet, Jeanin J{\"u}gler, Yves Laprie, Odile Mella, Bernd M{\"o}bius, Frank Zimmerer

The IFCASL corpus is a French-German bilingual phonetic learner corpus designed, recorded and annotated in a project on individualized feedback in computer-assisted spoken language learning.

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