EP 1251493 A3 20031119 - Method for noise reduction with self-adjusting spurious frequency
Title (en)
Method for noise reduction with self-adjusting spurious frequency
Title (de)
Verfahren zur Geräuschreduktion mit selbststeuernder Störfrequenz
Title (fr)
Procédé pour la réduction du bruit avec fréquence parasite auto-adaptative
Publication
Application
Priority
DE 10118653 A 20010414
Abstract (en)
[origin: EP1251493A2] The signals are processed together in pairs. Only one of the processed signals is subjected to a spectral subtraction, and combined with the other signal to form a difference signal. The primary signal may be connected as a differential array of two channels (1,2), or as a sum and difference signal of two channels.
IPC 1-7
IPC 8 full level
H04R 3/00 (2006.01); G10L 21/0208 (2013.01); G10L 21/0216 (2013.01)
CPC (source: EP US)
G10L 21/0208 (2013.01 - EP US); G10L 2021/02165 (2013.01 - EP US)
Citation (search report)
- [DA] EP 0615226 A2 19940914 - DAIMLER BENZ AG [DE]
- [A] US 5479517 A 19951226 - LINHARD KLAUS [DE]
- [A] BOLL S F: "SUPPRESSION OF ACOUSTIC NOISE IN SPEECH USING SPECTRAL SUBTRACTION", IEEE TRANSACTIONS ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, IEEE INC. NEW YORK, US, vol. 27, no. 2, 1 April 1979 (1979-04-01), pages 113 - 120, XP000560467, ISSN: 0096-3518
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 1251493 A2 20021023; EP 1251493 A3 20031119; EP 1251493 B1 20060816; AT E336782 T1 20060915; DE 10118653 A1 20021024; DE 10118653 C2 20030327; DE 50207832 D1 20060928; JP 2002374589 A 20021226; JP 4588966 B2 20101201; US 2002176589 A1 20021128; US 7020291 B2 20060328
DOCDB simple family (application)
EP 02008011 A 20020410; AT 02008011 T 20020410; DE 10118653 A 20010414; DE 50207832 T 20020410; JP 2002108951 A 20020411; US 12118002 A 20020412