EP 2795618 A1 20141029 - METHOD OF DETECTING A PREDETERMINED FREQUENCY BAND IN AN AUDIO DATA SIGNAL, DETECTION DEVICE AND COMPUTER PROGRAM CORRESPONDING THERETO
Title (en)
METHOD OF DETECTING A PREDETERMINED FREQUENCY BAND IN AN AUDIO DATA SIGNAL, DETECTION DEVICE AND COMPUTER PROGRAM CORRESPONDING THERETO
Title (de)
VERFAHREN ZUR ERKENNUNG EINES VORGEGEBENEN FREQUENZBANDES IN EINEM AUDIODATENSIGNAL, ERKENNUNGSVORRICHTUNG UND COMPUTERPROGRAMM DAFÜR
Title (fr)
PROCÉDÉ DE DÉTECTION D'UNE BANDE DE FRÉQUENCE PRÉDÉTERMINÉE DANS UN SIGNAL DE DONNÉES AUDIO, DISPOSITIF DE DÉTECTION ET PROGRAMME D'ORDINATEUR CORRESPONDANT
Publication
Application
Priority
- FR 1161992 A 20111220
- FR 2012052882 W 20121211
Abstract (en)
[origin: WO2013093291A1] The invention relates to a method of detecting a predetermined frequency band in an audio data signal which has previously been coded according to a succession of data blocks (B1; B2, ...,BZ), among which at least certain blocks contain respectively at least one set of spectral parameters representing a linear prediction filter. Such a method of detection implements, for a current block among said at least certain blocks and for which at least a plurality of spectral parameters of said set have been previously decoded, the steps consisting in: - determining (S1), among said plurality of previously decoded spectral parameters, the index of the first spectral parameter closest to a threshold frequency, - calculating (S2) at least one criterion on the basis of said determined index, - deciding (S3) whether said predetermined frequency band is detected in said current block, as a function of the criterion calculated.
IPC 8 full level
G10L 25/78 (2013.01)
CPC (source: EP US)
G10L 19/06 (2013.01 - EP US); G10L 19/08 (2013.01 - US); G10L 19/26 (2013.01 - US); G10L 25/78 (2013.01 - EP US); G10L 19/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2013093291A1
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)
FR 2984580 A1 20130621; CN 104137179 A 20141105; CN 104137179 B 20180828; EP 2795618 A1 20141029; EP 2795618 B1 20171101; US 2015179190 A1 20150625; US 2016171986 A1 20160616; US 9431030 B2 20160830; US 9928852 B2 20180327; WO 2013093291 A1 20130627
DOCDB simple family (application)
FR 1161992 A 20111220; CN 201280070157 A 20121211; EP 12816709 A 20121211; FR 2012052882 W 20121211; US 201214367435 A 20121211; US 201514965528 A 20151210