Sound source spatialization system

H - Electricity – 04 – S

Patent

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H04S 1/00 (2006.01)

Patent

CA 2490501

The invention concerns a sound source spatialization system with enhanced performances in particular for providing a spatilization system compatible with an integrated modular avionics (IMA) data processing equipment. It comprises: a filter database (13) including a head-related transfer function (HRTF) unit for transfer functions particular to the listener, a data display processor (CPU) receiving information derived from each source and including in particular a module for computing (101) positions of the sources relative to the listener and a module (102) for selecting head-related transfer functions with variable resolution adapted to the source position relative to the listener, one unit (CPU2) for computing said monophonic channels by convolution of each sound source with head-related transfer functions of said data estimated at said source position.

La présente invention concerne un système de spatialisation de sources sonores à performances améliorées permettant notamment la réalisation d'un système de spatialisation compatible avec un équipement modulaire avionique de traitement de l'information de type EMTI. Il comprend: une base de données filtres (13) comprenant un ensemble de fonctions de transfert de tête (HRTF) propres à l'auditeur, un processeur (CPU1) de présentation de données recevant l'information issue de chaque source et comprenant notamment un module de calcul (101) des positions relatives des sources par rapport à l'auditeur et un module (102) de sélection des fonctions de transfert de tête avec une résolution variable adaptée à la position relative de la source avec l'auditeur, une unité de calcul (CPU2) desdits canaux monophoniques par convolution de chaque source sonore avec des fonctions de transfert de tête de ladite base de données estimées à ladite position de la source.

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