EP 1652406 B1 20210623 - 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'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 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 (examination)
- WO 0182651 A1 20011101 - SONIC SOLUTIONS [US]
- US 6072878 A 20000606 - MOORER JAMES A [US]
- US 5594800 A 19970114 - GERZON MICHAEL A [GB]
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