Patent ID: 7706543
Filing Date: 2010-04-27
Classification: G10H,H04S

Abstract:
1. A method of processing sound data for playback by an ambisonic playback device, the method comprising: a) encoding signals representative of at least one sound so as to obtain a representation of the at least one sound propagating in a three-dimensional space and arising from a source situated at a first distance from a reference point, the reference point corresponding to a point of auditory perception of the at least one sound, the encoded representation of the sound being by components expressed in a base of spherical harmonics, of origin corresponding to said reference point; and b) applying a compensation of a near field effect to said components by a filtering which is dependent on a second distance representing a distance between a playback point and a point of auditory perception of the encoded representation of the at least one sound, for a playback of the at least one sound by a playback device.