EP 2717599 B1 20150916 - Method for processing an audio signal with modelling of the overall response of the electro-dynamic loudspeaker
Title (en)
Method for processing an audio signal with modelling of the overall response of the electro-dynamic loudspeaker
Title (de)
Verfahren zur Audiosignalverarbeitung mit Modellierung der globalen Antwort des elektrodynamischen Lautsprechers
Title (fr)
Procédé de traitement d'un signal audio avec modélisation de la réponse globale du haut-parleur électrodynamique
Publication
Application
Priority
FR 1258116 A 20120830
Abstract (en)
[origin: EP2717599A1] The method involves determining a state vector by application of voltage and current measurements to a predictive filter estimator incorporating a representation of a dynamic model of an electrodynamic loudspeaker, where a predictive filter is an extended Kalman filter (16). The filter is adapted to operate a prediction of the vector and readjust the prediction by calculation of an estimate of a voltage (Uestn) based on the state vector, current measurement and comparison of the estimate to the voltage measurement. A processing function of the vector is applied to an audio signal.
IPC 8 full level
H04R 29/00 (2006.01); H04R 9/02 (2006.01); H04R 3/04 (2006.01)
CPC (source: EP US)
H04R 3/04 (2013.01 - EP US); H04R 29/003 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2717599 A1 20140409; EP 2717599 B1 20150916; CN 103686530 A 20140326; FR 2995167 A1 20140307; FR 2995167 B1 20141114; JP 2014050106 A 20140317; US 2014064502 A1 20140306; US 9232311 B2 20160105
DOCDB simple family (application)
EP 13174690 A 20130702; CN 201310315155 A 20130724; FR 1258116 A 20120830; JP 2013172797 A 20130823; US 201313927980 A 20130626