EP 0555787 B1 19970514 - Combined active deresonator and ambience generator
Title (en)
Combined active deresonator and ambience generator
Title (de)
Kombinierte aktive Raumresonanzunterdrückung und Raumhallerzeugung
Title (fr)
Dérésonateur actif et générateur d'ambiance en combinaison
Publication
Application
Priority
FI 920608 A 19920213
Abstract (en)
[origin: EP0555787A2] The invention relates to a device to be used for changing the acoustic properties of a room, comprising a pressure transducer (1), a loudspeaker (2) and an electronic control circuit (3) adapted to generate, in response to pressure changes in the room, an electrical signal that serves to cancel the pressure change detected by the pressure transducer (1) when it is reproduced through the loudspeaker. For improving the properties of the room also with respect to reverberation, the device of the invention further includes an ambience generator (4) adapted to receive an electrical signal proportional to the sound present in the room and to generate, in response to said signal, a signal which produces an acoustic field containing early reflections and reverberation in the room when reproduced through the loudspeaker (2). <IMAGE>
IPC 1-7
IPC 8 full level
G10K 11/178 (2006.01); G10K 15/00 (2006.01); G10K 15/08 (2006.01)
CPC (source: EP)
G10K 15/08 (2013.01)
Citation (examination)
US 4899387 A 19900206 - PASS NELSON S [US]
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0555787 A2 19930818; EP 0555787 A3 19931124; EP 0555787 B1 19970514; DE 69310561 D1 19970619; DE 69310561 T2 19971113; FI 920608 A0 19920213; FI 920608 A 19930814; FI 94565 B 19950615; FI 94565 C 19950925; JP 3364260 B2 20030108; JP H05346792 A 19931227
DOCDB simple family (application)
EP 93101873 A 19930206; DE 69310561 T 19930206; FI 920608 A 19920213; JP 2441593 A 19930212