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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) Application No.: 00905/KOLNP/2005 A
(22) Date of filing of Application: 17/05/2005 (43) Publication Date: 09/06/2006
(54) Title of the invention: METHOD FOR PROCESSING AUDIO DATA AND SOUND ACQUISITION DEVICE THEREFOR
(51) International classification : G01H 1/00
(31) Priority Document No : 02/14444
(32) Priority Date : 19/11/2002
(33) Name of priority country : FRANCE
(86) International Application No and : PCT/FR03/003367
Filing Date
: & 13/11/2003
(87) International Publication No : WO 04/049299
(61) Patent of addition to Application No : NA
Filed on : NA
(62) Divisional to Application No : NA
Filed on : NA
(57) Abstract:
The invention concerns the processing of audio data., characterized
in that is consists in ; (a) encoding signals representing a sound
propagated in three-dimensional space and derived from a source
located at first distance(P) from a reference point, to obtain a
representation of the sound through components expressed in a
spherical harmonic base, of origin corresponding to said reference
point, (b) and applying to said components compensation of a nearfield
effect through filtering based on a second distance defining, for
sound reproduction, a distance between a reproduction point (HPi)
and a point (P) of auditory perception where a listener is usually
located.
(FIG). 7
(71) Name of Applicant:
FRANCE TELECOM.,
Address of the Applicant:
6, PLACE D’ALLERAY, 75015 PARIS, FRANCE.
(72) Name of the Inventor:
DANIEL JEROME
Filed U/S 5(2) before The Patents (Amendment)
Act, 2005: NO
The Patent Office Journal 09/06/2006 11047