EP 1576847 B1 20060419 - AUDIO PLAYBACK SYSTEM AND METHOD FOR PLAYING BACK AN AUDIO SIGNAL
Title (en)
AUDIO PLAYBACK SYSTEM AND METHOD FOR PLAYING BACK AN AUDIO SIGNAL
Title (de)
AUDIOWIEDERGABESYSTEM UND VERFAHREN ZUM WIEDERGEBEN EINES AUDIOSIGNALS
Title (fr)
SYSTEME DE RESTITUTION AUDIO ET PROCEDE DE RESTITUTION D'UN SIGNAL AUDIO
Publication
Application
Priority
- DE 10254404 A 20021121
- EP 0313110 W 20031121
Abstract (en)
[origin: WO2004047485A1] An audio playback system is divided into a central wavefield synthesis module (10) and a multitude of decentrally arranged loudspeaker modules (12a-12e). Synthesis signals for the individual loudspeakers and corresponding items of channel information, which are assigned to the synthesis signals, are calculated in the central wavefield synthesis module. The synthesis signals for a loudspeaker together with associated items of channel information are then transmitted to corresponding loudspeaker modules via a transmission link (16a-16e). Each loudspeaker module receives the synthesis signals and associated items of channel information that are intended for the loudspeaker assigned to the loudspeaker module. A decentralized audio rendering and digital-to-analog conversion takes place inside the loudspeaker modules in order to decentrally generate the actual analog loudspeaker signals in spatial proximity to each loudspeaker. The division into a central wavefield synthesis module and a multitude of decentralized loudspeaker modules enables the production of audio playback systems that can be scaled with regard to price in order to offer different size systems, which can be scaled in terms of price, for, in particular, cinema playback spaces that vary greatly in size.
IPC 8 full level
H04R 5/02 (2006.01); H04R 3/12 (2006.01); H04S 3/00 (2006.01); H04R 1/40 (2006.01)
CPC (source: EP)
H04R 3/12 (2013.01); H04R 5/02 (2013.01); H04R 1/403 (2013.01); H04S 2420/13 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB LI
DOCDB simple family (publication)
WO 2004047485 A1 20040603; AT E324021 T1 20060515; DE 10254404 A1 20040617; DE 10254404 B4 20041118; DE 50303069 D1 20060524; EP 1576847 A1 20050921; EP 1576847 B1 20060419; JP 2006507727 A 20060302; JP 4620468 B2 20110126
DOCDB simple family (application)
EP 0313110 W 20031121; AT 03782222 T 20031121; DE 10254404 A 20021121; DE 50303069 T 20031121; EP 03782222 A 20031121; JP 2004552700 A 20031121