EP 0255529 A4 19880608 - FRAME COMPARISON METHOD FOR WORD RECOGNITION IN HIGH NOISE ENVIRONMENTS.
Title (en)
FRAME COMPARISON METHOD FOR WORD RECOGNITION IN HIGH NOISE ENVIRONMENTS.
Title (de)
RAHMENVERGLEICHSVERFAHREN ZUR WORTERKENNUNG IN EINER UMGEBUNG MIT VIEL LÄRM.
Title (fr)
PROCEDE DE COMPARAISON DE SEQUENCES POUR LA RECONNAISSANCE DE MOTS DANS DES ENVIRONNEMENTS A BRUIT AMBIANT ELEVE.
Publication
Application
Priority
US 81659886 A 19860106
Abstract (en)
[origin: WO8704294A1] Method and arrangement for a speech recognition system using channel bank information to represent speech. The method considers background noise included with the speech. The method includes determining three energy levels for each channel, the first representative of background noise energy (20), the second representative of the input frame energy (16) and the third representative of the word template frame energy (18). Values representing energy level differentials are assigned at each channel. If the second energy level is less than the first energy level, then a predetermined constant value is assigned at that particular channel. These values are combined to generate a distance measure depicting the similarity between the two frames.
IPC 1-7
IPC 8 full level
G10L 15/00 (2013.01); G10L 15/20 (2006.01)
CPC (source: EP)
G10L 15/00 (2013.01)
Citation (search report)
- [X] GB 2137791 A 19841010 - SECR DEFENCE
- See references of WO 8704294A1
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
WO 8704294 A1 19870716; CA 1301338 C 19920519; EP 0255529 A1 19880210; EP 0255529 A4 19880608; FI 873567 A0 19870818; FI 873567 A 19870818; JP S63502304 A 19880901
DOCDB simple family (application)
US 8602826 W 19861229; CA 526489 A 19861230; EP 87900768 A 19861229; FI 873567 A 19870818; JP 50080687 A 19861229