EP 1120775 A1 20010801 - NOISE SIGNAL ENCODER AND VOICE SIGNAL ENCODER
Title (en)
NOISE SIGNAL ENCODER AND VOICE SIGNAL ENCODER
Title (de)
GERÄUSCHSIGNALKODIERER UND STIMMENSIGNALKODIERER
Title (fr)
CODEUR DE SIGNAUX DE BRUIT ET CODEUR DE SIGNAUX VOCAUX
Publication
Application
Priority
- JP 0003526 W 20000601
- JP 16854599 A 19990615
Abstract (en)
Using noise model storage section 302 for storing information on a noise model capable of expressing statistical characteristic quantities regarding an input noise signal with respect to statistical characteristic quantities for an input noise signal calculated by noise signal analysis section 301, noise model variation detection section 303 detects whether a noise model parameter indicating the input noise signal has changed or not, noise model updating section 304 updates the noise model and outputs the updated model information. Coding is performed on a non-speech segment speech segment (segment with only noise) of an input signal or on a noise signal separated from a speech signal using the noise signal coder in the above configuration, while coding is performed on a speech segment using a speech coder. <IMAGE>
IPC 1-7
IPC 8 full level
G10L 11/02 (2006.01); G10L 19/00 (2006.01); G10L 19/012 (2013.01); G10L 19/12 (2013.01); G10L 19/20 (2013.01); G10L 19/22 (2013.01); G10L 25/78 (2013.01); H03M 7/50 (2006.01); G10L 21/02 (2006.01)
CPC (source: EP)
G10L 19/012 (2013.01); G10L 2021/02168 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1120775 A1 20010801; EP 1120775 A4 20010926; AU 5103700 A 20010102; CN 1313983 A 20010919; JP 2000357000 A 20001226; JP 4464484 B2 20100519; WO 0077774 A1 20001221
DOCDB simple family (application)
EP 00935511 A 20000601; AU 5103700 A 20000601; CN 00801092 A 20000601; JP 0003526 W 20000601; JP 16854599 A 19990615