EP 1652406 A1 20060503 - SYSTEM AND METHOD FOR DETERMINING A REPRESENTATION OF AN ACOUSTIC FIELD
Title (en)
SYSTEM AND METHOD FOR DETERMINING A REPRESENTATION OF AN ACOUSTIC FIELD
Title (de)
SYSTEM UND VERFAHREN ZUR BESTIMMUNG EINER REPRÄSENTATION EINES AKUSTISCHEN FELDES
Title (fr)
SYSTEME ET PROCEDE DE DETERMINATION D UNE REPRESENTATION D&a pos;UN CHAMP ACOUSTIQUE
Publication
Application
Priority
- FR 2004002044 W 20040729
- FR 0309471 A 20030731
Abstract (en)
[origin: WO2005013643A1] The system for determining a representation of an acoustic field (P) comprises means (1) for the acquisition of acoustic waves, comprising a plurality of elementary sensors (21 to 2Q ) distributed in space, each delivering a measuring signal (c1 to cQ); and processing means (8) applying filtering combinations representing structural characteristics of said means of acquisition (1) to said measuring signals (c1 - cQ), in order to deliver a plurality of acoustic signals (sc1 to scN) associated with a predetermined general direction of restitution which is defined in relation to a given point in space (14). The set of acoustic signals (sc1 à scN) form a representation of said acoustic field (P). The invention is characterized in that said elementary sensors (21 to 2Q ) are distributed in space in a substantially non-regular manner and in that said filtering combinations are representative of said distribution.
IPC 1-7
IPC 8 full level
CPC (source: EP KR US)
H04S 3/00 (2013.01 - EP KR US); H04S 3/02 (2013.01 - KR); H04S 3/02 (2013.01 - EP US); H04S 2400/15 (2013.01 - EP US)
Citation (search report)
See references of WO 2005013643A1
Designated contracting state (EPC)
DE DK GB
DOCDB simple family (publication)
FR 2858403 A1 20050204; FR 2858403 B1 20051118; CN 1849844 A 20061018; CN 1849844 B 20100721; EP 1652406 A1 20060503; EP 1652406 B1 20210623; JP 2007500962 A 20070118; JP 5000297 B2 20120815; KR 20060121807 A 20061129; US 2006239465 A1 20061026; US 7856106 B2 20101221; WO 2005013643 A1 20050210
DOCDB simple family (application)
FR 0309471 A 20030731; CN 200480025806 A 20040729; EP 04767818 A 20040729; FR 2004002044 W 20040729; JP 2006521628 A 20040729; KR 20067002128 A 20060131; US 56617906 A 20060327