EP 2912660 B1 20170111 - METHOD FOR DETERMINING A DICTIONARY OF BASE COMPONENTS FROM AN AUDIO SIGNAL
Title (en)
METHOD FOR DETERMINING A DICTIONARY OF BASE COMPONENTS FROM AN AUDIO SIGNAL
Title (de)
VERFAHREN ZUM BESTIMMEN EIN WÖRTERBUCH VON BASISKOMPONENTEN AUS EINEM AUDIOSIGNAL
Title (fr)
PROCEDE POUR DETERMINER UNE DICTIONNAIRE DE COMPOSANTS DE BASE D'UN SIGNAL AUDIO
Publication
Application
Priority
EP 2012073149 W 20121121
Abstract (en)
[origin: WO2014079484A1] The invention relates to a method (440) for determining a dictionary of base components (431) from an audio signal (401), the audio signal (401) being represented by an input matrix (V) which columns comprise features of the audio signal (401) at different instances in time, the method (440) comprising: decomposing (430) the input matrix (V) into a product of a non-negative base matrix (W) and a non-negative weight matrix (H), the decomposing (430) being constrained by a Wiener entropy measure with respect to elements of the non-negative weight matrix (H), wherein components of the non-negative base matrix (W) represent the dictionary of base components (431) of the audio signal (401).
IPC 8 full level
G10L 21/0232 (2013.01)
CPC (source: EP)
G10L 21/0232 (2013.01)
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)
WO 2014079484 A1 20140530; EP 2912660 A1 20150902; EP 2912660 B1 20170111
DOCDB simple family (application)
EP 2012073149 W 20121121; EP 12794680 A 20121121