EP 1386307 B1 20050209 - METHOD AND DEVICE FOR DETERMINING A QUALITY MEASURE FOR AN AUDIO SIGNAL
Title (en)
METHOD AND DEVICE FOR DETERMINING A QUALITY MEASURE FOR AN AUDIO SIGNAL
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG EINES QUALITÄTSMASSES EINES AUDIOSIGNALS
Title (fr)
PROCEDE ET DISPOSITIF POUR DETERMINER UN NIVEAU DE QUALITE D'UN SIGNAL AUDIO
Publication
Application
Priority
- EP 02703438 A 20020319
- CH 0200164 W 20020319
- EP 01810285 A 20010320
Abstract (en)
[origin: EP1244094A1] The invention relates to a method for determining a quality measure (2) for an audio signal (1), whereby the speech signal component (4) is first extracted from the audio signal (1). A reference signal (6) is then generated using said signal, by means of noise suppression (7) and interrupt interpolation (8). The above is compared with the speech signal (4) and an intrusive quality value (10) thus determined. A further quality value (15) is determined, by determining and evaluating Codec-related signal distortions in the speech signal (4). A further quality value (17) is generated from information on the detected signal interruptions (8). The quality measure (2) is finally determined as a linear combination (16) of the various quality values (10, 15, 17, 18).
IPC 1-7
IPC 8 full level
G10L 25/69 (2013.01)
CPC (source: EP US)
G10L 25/69 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1244094 A1 20020925; AT E289109 T1 20050215; DE 50202226 D1 20050317; EP 1386307 A1 20040204; EP 1386307 B1 20050209; EP 1386307 B2 20130417; US 2002191798 A1 20021219; US 6804651 B2 20041012; WO 02075725 A1 20020926
DOCDB simple family (application)
EP 01810285 A 20010320; AT 02703438 T 20020319; CH 0200164 W 20020319; DE 50202226 T 20020319; EP 02703438 A 20020319; US 10153302 A 20020319