EP 1502475 B1 20050727 - METHOD AND SYSTEM OF REPRESENTING A SOUND FIELD
Title (en)
METHOD AND SYSTEM OF REPRESENTING A SOUND FIELD
Title (de)
VERFAHREN UND SYSTEM ZUM REPRÄSENTIEREN EINES SCHALLFELDES
Title (fr)
PROCEDE ET SYSTEME DE REPRESENTATION D UN CHAMP ACOUSTIQUE
Publication
Application
Priority
- FR 0301410 W 20030506
- FR 0205741 A 20020507
Abstract (en)
[origin: WO03096742A1] The invention relates to a method of representing a sound field. The inventive method includes a step involving the acquisition of measurement signals (cn) which are delivered by acquisition means (1) comprising one or more simple sensors (2n) that are exposed to said sound field (P). The invention is characterised in that it comprises: a step involving the determination of encoding filters which are representative of at least the structural characteristics of the aforementioned acquisition means (1); and a step whereby the measurement signals (cn) are processed by applying said encoding filters to the signals (cn), in order to determine a finite number of representative coefficients over time and in the three-dimensional space of the sound field (P), said coefficients being used to produce a representation of the sound field (P) which is essentially independent of the characteristics of the acquisition means (1).
IPC 1-7
IPC 8 full level
G01H 3/00 (2006.01); G10K 15/00 (2006.01); H04R 3/00 (2006.01)
CPC (source: EP KR US)
H04R 3/00 (2013.01 - KR); H04R 3/005 (2013.01 - EP US); H04R 3/04 (2013.01 - KR)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03096742 A1 20031120; AT E300852 T1 20050815; AU 2003255562 A1 20031111; AU 2003255562 B2 20090423; CA 2484588 A1 20031120; CA 2484588 C 20130312; CN 1659926 A 20050824; CN 1659926 B 20100512; DE 60301146 D1 20050901; DE 60301146 T2 20060601; DK 1502475 T3 20051128; EP 1502475 A1 20050202; EP 1502475 B1 20050727; EP 1502475 B8 20050928; FR 2839565 A1 20031114; FR 2839565 B1 20041119; JP 2005531016 A 20051013; JP 4293986 B2 20090708; KR 100972419 B1 20100727; KR 20050010784 A 20050128; US 2005177606 A1 20050811; US 7212956 B2 20070501
DOCDB simple family (application)
FR 0301410 W 20030506; AT 03749929 T 20030506; AU 2003255562 A 20030506; CA 2484588 A 20030506; CN 03813224 A 20030506; DE 60301146 T 20030506; DK 03749929 T 20030506; EP 03749929 A 20030506; FR 0205741 A 20020507; JP 2004504563 A 20030506; KR 20047017867 A 20030506; US 51387105 A 20050421