Analyse de la valeur ajoutée d’un système de communication dans un environnement radio acoustique virtuelle (RAVE)

Abstract

The purpose of this thesis is to evaluate the added value of a communication system integrating the emerging technology of Radio Acoustical Virtual Environment (RAVE). This technology, still at the conceptual stage and without any existing implementation or prototype, aims to improve communications in industrial environments. RAVE identifies the users targeted by a speaker and electronically transmits the voice to them with a directional sound impression. “In order to compensate for the absence of any implementation, a testbed emulating the principles of RAVE was developed to explore its potential.” In order to compensate for the absence of any implementation, a test bench emulating the principles of RAVE was developed to explore its potential. It includes three modules : an Own Voice Detection (OVD) algorithm, an Intended Listener Detection (ILD) algorithm based on a Communication Radius Estimator (CRE), and a spatialization module using Head-Related Transfer Function (HRTF). The system was evaluated with 18 participants divided into groups of three. Analysis of questionnaires completed by the participants and algorithm performance allowed the assessment of RAVE’s potential. The OVD effectively detected the voice while freeing the hands. The ILD, although functional, was not very intuitive but can be easily improved with a feedback system. The HRTF were slightly positively received, but their full potential was not revealed due to the small group size. Thus, the RAVE emulation proposed in this work has made a first evaluation possible : RAVE proves to be a technology that is still in need of improvement, but rich in potential.

Date	29 Aug 2025
Original language	French
Awarding Institution	École de technologie supérieure
Supervisor	Pascal Giard (Supervisor) & Rachel Bouserhal (Co-supervisor)