EP 1303856 B1 20041006 - METHOD FOR CONCEALING TRANSMISSION ERRORS IN DIGITAL AUDIO DATA
Title (en)
METHOD FOR CONCEALING TRANSMISSION ERRORS IN DIGITAL AUDIO DATA
Title (de)
VERFAHREN ZUR FEHLERVERSCHLEIERUNG VON ÜBERTRAGUNGSFEHLERN IN DIGITALEN AUDIODATEN
Title (fr)
PROCEDE POUR LE MASQUAGE D'ERREURS DANS DES CHAMPS DE TRANSMISSION DE DONNEES AUDIO NUMERIQUES
Publication
Application
Priority
- DE 0102557 W 20010713
- DE 10034783 A 20000718
Abstract (en)
[origin: WO0207149A1] The invention relates to a method for concealing transmission errors in digital audio data. The inventive method is used to initialise an error concealment with starting values, said error concealment being then adapted by receiver quality which is determined on the basis of the currently received digital audio data. The error concealment is carried out according to channel decoding, by equalising the audio spectrum. The starting values are calculated either on the basis of the currently calculated receiver quality or receiver quality from a pre-set audio channel. In addition, the channel error protection level of both audio channels is compared. The receiver quality is determined by the bit error rate, and/or the number of scale factor errors, and/or the number of check sum errors. The pre-set audio channel can also be an FM audio channel. The storage time for the amount of transmission errors in the pre-set audio channel is taken into account during the initialisation of the error concealment.
IPC 1-7
IPC 8 full level
G10L 19/00 (2006.01); G10L 19/005 (2013.01); H04B 1/10 (2006.01); H04B 1/16 (2006.01)
CPC (source: EP)
G10L 19/005 (2013.01)
Designated contracting state (EPC)
DE ES GB SE
DOCDB simple family (publication)
WO 0207149 A1 20020124; CA 2415424 A1 20030108; CA 2415424 C 20071002; DE 10034783 A1 20020207; DE 50104018 D1 20041111; EP 1303856 A1 20030423; EP 1303856 B1 20041006; ES 2228914 T3 20050416; JP 2004504744 A 20040212; JP 4813747 B2 20111109
DOCDB simple family (application)
DE 0102557 W 20010713; CA 2415424 A 20010713; DE 10034783 A 20000718; DE 50104018 T 20010713; EP 01953895 A 20010713; ES 01953895 T 20010713; JP 2002512969 A 20010713