• Patent Title: Method for the spatialized sound reproduction of a sound field that is audible in a position of a moving listener and system implementing such a method
  • Application No.: US17270528
    Application Date: 2019-08-22
  • Publication No.: US11432100B2
    Publication Date: 2022-08-30
  • Inventor: Georges RousselRozenn Nicol
  • Applicant: ORANGE
  • Applicant Address: FR Issy-les-Moulineaux
  • Assignee: ORANGE
  • Current Assignee: ORANGE
  • Current Assignee Address: FR Issy-les-Moulineaux
  • Agency: Westman, Champlin & Koehler, P.A.
  • Agent David D. Brush
  • Priority: FR1857774 20180829
  • International Application: PCT/FR2019/051952 WO 20190822
  • International Announcement: WO2020/043979 WO 20200305
  • Main IPC: H04S7/00
  • IPC: H04S7/00 H04R1/40 H04R3/00
Method for the spatialized sound reproduction of a sound field that is audible in a position of a moving listener and system implementing such a method
Abstract:
A computer-assisted method for spatialized sound reproduction based on an array of loudspeakers, for the purpose of producing a selected sound field at a position of a listener. The method includes iteratively and continuously: obtaining a current position of a listener; determining respective acoustic transfer functions of the loudspeakers at a virtual microphone of which the position is defined dynamically as a function of the current position of the listener, estimating a sound pressure at the virtual microphone; calculating an error between the estimated sound pressure and a target sound pressure; calculating and applying respective weights to the control signals of the loudspeakers as a function of the error and of a weight forgetting factor, the forgetting factor being calculated as a function of a movement of the listener, and calculating the sound pressure at the current position of the listener.
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