EP 0790753 A1 19970820 - System for sound spatial effect and method therefor
Title (en)
System for sound spatial effect and method therefor
Title (de)
System für Raumklangeffekt und Verfahren dafür
Title (fr)
Système de spatialisation sonore, et procédé pour sa mise en oeuvre
Publication
Application
Priority
FR 9601740 A 19960213
Abstract (en)
The method involves using a binaural processor (*) with two channels operating for each monophonic sound channel which is to be located. The two channels include filters which are linked to combine signals linearly within the channels. The processor is linked to an orientating device (13) which determines the spatial location of a sound source and is itself connection to a position locating device (3,4,12). Convolution of the signals is performed between the monophonic signal and the user left ear transfer function and the user right ear transfer function. These functions are specific to the particular user. The transfer functions may also include use of a phase interpolation device to determine the appropriate phase for each signal within the two channels.
Abstract (fr)
Le système de spatialisation sonore de l'invention comporte, pour chaque canal monophonique à spatialiser, un processeur binaural (8) à deux voies de filtres de convolution combinés linéairement dans chaque voie, ce (s) processeur (s) étant relié (s) à un dispositif orienteur (13) de calcul de localisation spatiale des sources sonores, lui-même relié à au moins un dispositif de localisation (3, 4, 12). La convolution est effectuée entre le signal monophonique et les fonctions de transfert "oreille gauche" et "oreille droite" de l'utilisateur, ces fonctions de transfert étant propres à cet utilisateur, ce qui améliore ses performances de localisation de la source sonore monophonique. <IMAGE>
IPC 1-7
IPC 8 full level
H04S 3/00 (2006.01); H04S 5/00 (2006.01); H04S 5/02 (2006.01); H04S 7/00 (2006.01)
CPC (source: EP US)
H04S 3/004 (2013.01 - EP US); H04S 7/30 (2013.01 - EP US); H04S 2400/01 (2013.01 - EP US)
Citation (search report)
- [YA] US 5438623 A 19950801 - BEGAULT DURAND R [US]
- [YA] EP 0664660 A2 19950726 - SONY CORP [JP]
- [A] WO 9401933 A1 19940120 - LAKE DSP PTY LTD [AU], et al
- [A] US 4700389 A 19871013 - NAKAYAMA KAZUAKI [JP]
- [A] WO 9007172 A1 19900628 - HONEYWELL INC [US]
- [A] FR 2633125 A1 19891222 - SGS THOMSON MICROELECTRONICS [FR]
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0790753 A1 19970820; EP 0790753 B1 20040128; CA 2197166 A1 19970814; CA 2197166 C 20050816; DE 69727328 D1 20040304; DE 69727328 T2 20041021; FR 2744871 A1 19970814; FR 2744871 B1 19980306; JP H1042399 A 19980213; US 5987142 A 19991116
DOCDB simple family (application)
EP 97400248 A 19970205; CA 2197166 A 19970210; DE 69727328 T 19970205; FR 9601740 A 19960213; JP 2937297 A 19970213; US 79721297 A 19970211