Transaural stereo device

H - Electricity – 04 – R

Patent

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Details

H04R 5/00 (2006.01) H04S 3/02 (2006.01)

Patent

CA 2265961

A method of creating an impression of sound from an imaginary source to a listener. The method includes the step of determining an acoustic matrix for an actual set of speakers (S1-Sm) at an actual location relative to the listener (G1) and the step of determining an acoustic matrix for transmission of an acoustic signal from an apparent speaker (S1-Sm) location different from the actual location to the listener. The method further includes the step of solving for a transfer function matrix to present the listener with an audio signal creating an audio image of sound emanating from the apparent speaker location.

On décrit un procédé, destiné à créer une impression sonore entre une source imaginaire et un auditeur, et comprenant les étapes consistant à établir une matrice acoustique d'un ensemble réel de haut-parleurs (S1-Sm), au niveau d'un emplacement réel par rapport à l'auditeur (G1), et à établir une matrice acoustique destinée à émettre un signal acoustique à partir d'un emplacement apparent de haut-parleurs (S1-Sm), différent de l'emplacement réel par rapport à l'auditeur. Ce procédé comprend encore l'étape consistant résoudre une matrice de fonctions de transfert, afin de présenter à l'auditeur un signal audio créant une image audio du son émanant de l'emplacement apparent des haut-parleurs.

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