(19)
(11) EP 2 880 655 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
14.12.2016 Bulletin 2016/50

(45) Mention of the grant of the patent:
12.10.2016 Bulletin 2016/41

(21) Application number: 12746227.3

(22) Date of filing: 01.08.2012
(51) International Patent Classification (IPC): 
G10L 21/0232(2013.01)
G10L 25/18(2013.01)
 G10L 25/78(2013.01)
(86) International application number:
PCT/US2012/049229
(87) International publication number:
WO 2014/021890 (06.02.2014 Gazette 2014/06)

(54)

PERCENTILE FILTERING OF NOISE REDUCTION GAINS

PERZENTILFILTERUNG EINER RAUSCHUNTERDRÜCKUNGSVERSTÄRKUNG

FILTRAGE CENTILE DE GAINS DE RÉDUCTION DE BRUIT

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(43) Date of publication of application:
10.06.2015 Bulletin 2015/24

(73) Proprietor: Dolby Laboratories Licensing Corporation
San Francisco, CA 94103 (US)

(72) Inventors:
  • SUN, Xuejing
    Chaoyang District Beijing 100020 (CN)
  • DICKINS, Glenn N.
    New South Wales 2060 (AU)

(74) Representative: Dolby International AB Patent Group Europe 
Apollo Building, 3E Herikerbergweg 1-35
1101 CN Amsterdam Zuidoost
1101 CN Amsterdam Zuidoost (NL)


(56) References cited: : 
EP-A1- 2 463 856
 US-A1- 2005 240 401
   
  • LINHARD ET AL.: "Noise Reduction with Spectral Subtraction and Median Filtering for Suppression of Musical Tones", ROBUST SPEECH RECOGNITION FOR UNKNOWN COMMUNICATION CHANNELS, PROCEEDINGS RSR-1997, 17 April 1997 (1997-04-17), pages 159-162, XP002695155, Pont-à-Mousson, France
  • THOMAS ESCH ET AL: "Efficient musical noise suppression for speech enhancement system", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2009. ICASSP 2009. IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 19 April 2009 (2009-04-19), pages 4409-4412, XP031460253, ISBN: 978-1-4244-2353-8
  • CHING-TA LU ET AL: "Reduction of residual noise using directional median filter", COMPUTER SCIENCE AND AUTOMATION ENGINEERING (CSAE), 2011 IEEE INTERNATIONAL CONFERENCE ON, IEEE, 10 June 2011 (2011-06-10), pages 475-479, XP031894306, DOI: 10.1109/CSAE.2011.5952722 ISBN: 978-1-4244-8727-1
   
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