EP 4134954 A1 20230215 - METHOD AND DEVICE FOR IMPROVING AN AUDIO SIGNAL
Title (en)
METHOD AND DEVICE FOR IMPROVING AN AUDIO SIGNAL
Title (de)
VERFAHREN UND VORRICHTUNG ZUR AUDIOSIGNALVERBESSERUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF D'AMÉLIORATION DU SIGNAL AUDIO
Publication
Application
Priority
EP 21190351 A 20210809
Abstract (de)
Ein Verfahren zur Verbesserung eines Audiosignals, insbesondere in Echtzeit, umfasst zumindest folgende Schritte: Empfangen eines Audiosignals mit mehreren Amplitudenwerten, wobei das Audiosignal zumindest abschnittsweise Sprache aufweist; Detektieren von Sprachabschnitten des Audiosignals; Filtern des Audiosignals mit wenigstens einem Pegelfilter, um Signalpegelvariationen des Audiosignals in den detektierten Sprachabschnitten zu reduzieren; und Filtern des Audiosignals mit wenigstens einem Entzerrfilter, um spektrale Variationen des Audiosignals in den detektierten Sprachabschnitten zu reduzieren.
IPC 8 full level
G10L 21/0316 (2013.01); G10L 21/0364 (2013.01); H04R 27/00 (2006.01)
CPC (source: EP)
G10L 21/0364 (2013.01); H04R 27/00 (2013.01); G10L 25/78 (2013.01); H04R 2225/43 (2013.01); H04R 2227/007 (2013.01); H04R 2227/009 (2013.01); H04R 2430/01 (2013.01)
Citation (applicant)
T.V. WATERSCHOOTM. MOONEN: "Comparative Evaluation of Howeling Detection Criteria in Notch-Filter-Based Howling Supression", JOURNAL OFTHE AUDIO ENGINEERING SOCIETY, vol. 58, 2010, pages 923 - 940
Citation (search report)
- [X] US 2016019905 A1 20160121 - STYLIANOU IOANNIS [GB]
- [X] US 2017047080 A1 20170216 - SHIGA YOSHINORI [JP]
- [X] US 6295364 B1 20010925 - FINN BRIAN M [US], et al
- [X] US 2010121634 A1 20100513 - MUESCH HANNES [US]
- [X] US 2006247922 A1 20061102 - HETHERINGTON PHILLIP [CA], et al
- [X] EP 1777988 A2 20070425 - PROTEC FIRE DETECTION PLC [GB]
- [X] SCHEPKER H ET AL: "Improving speech intelligibility in noise by SII-dependent preprocessing using frequency-dependent amplification and dynamic range compression", SPEECH IN LIFE SCIENCES AND HUMAN SOCIETIES : 14TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION (INTERSPEECH 2013) ; LYON, FRANCE, 25 - 29 AUGUST 2013, CURRAN, RED HOOK, NY, 25 August 2013 (2013-08-25), pages 3577 - 3581, XP002734731, ISBN: 978-1-62993-443-3
Designated contracting state (EPC)
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4134954 A1 20230215; EP 4134954 B1 20230802; EP 4134954 C0 20230802
DOCDB simple family (application)
EP 21190351 A 20210809