Bibliografische Daten

Dokument KR102008113412A (Seiten: 42)

Bibliografische Daten Dokument KR102008113412A (Seiten: 42)
INID Kriterium Feld Inhalt
54 Titel TI [EN] AUDIO SIGNAL DECORRELATOR
71/73 Anmelder/Inhaber PA FRAUNHOFER GES FORSCHUNG, DE
72 Erfinder IN BUCHNER HERBERT, DE ; HERRE JURGEN, DE
22/96 Anmeldedatum AD 28.03.2007
21 Anmeldenummer AN 20087025014
Anmeldeland AC KR
Veröffentlichungsdatum PUB 30.12.2008
33
31
32
Priorität PRC
PRN
PRD
EP
06007833
20060413
33
31
32
PRC
PRN
PRD
EP
06012271
20060614
51 IPC-Hauptklasse ICM G10L 19/00 (2006.01)
51 IPC-Nebenklasse ICS
IPC-Zusatzklasse ICA
IPC-Indexklasse ICI
Gemeinsame Patentklassifikation CPC Neues Fenster: Externer Link Gemeinsame Patentklassifikation G10L 2021/02082 G10L 2021/02082
Neues Fenster: Externer Link Gemeinsame Patentklassifikation G10L 19/008 G10L 19/008
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04M 9/082 H04M 9/082
Neues Fenster: Externer Link Gemeinsame Patentklassifikation H04M 9/08 H04M 9/08
Neues Fenster: Externer Link Gemeinsame Patentklassifikation G10L 21/0208 G10L 21/0208
MCD-Hauptklasse MCM H04M 9/08 (2006.01)
MCD-Nebenklasse MCS G10L 19/00 (2006.01)
G10L 19/008 (2013.01)
G10L 21/02 (2006.01)
MCD-Zusatzklasse MCA G10L 21/0208 (2013.01)
57 Zusammenfassung AB [EN] An audio signal decorrelator (100) for deriving an output audio signal (170) from an input audio signal (112) comprises a frequency analyzer (110) for extracting a first partial signal (120) and a second partial signal (122) from the input audio signal, the first partial signal being descriptive of an audio content in a first audio frequency range, the second partial signal being descriptive of an audio content in a second audio frequency range, the first audio frequency range having higher frequencies compared to the second audio frequency range. The audio signal decorrelator further comprises a partial signal modifier (140) for modifying the first partial signal, to obtain a first processed partial signal (150), and the second partial signal, to obtain a second processed partial signal (152), so that a modulation amplitude of a time variant phase shift or time variant delay applied to the first partial signal is higher than a modulation amplitude of a time variant phase shift or a time variant delay applied to the second partial signal, or for modifying only the first partial signal, so that a time variant phase shift or a time variant delay is applied to the first partial signal. The audio signal decorrelator further comprises a signal combiner (160) for combining the first processed partial signal and the second processed partial signal, or for combining the first processed partial signal and the second partial signal, to obtain an output audio signal (170). The audio signal decorrelator allows for an efficient decorrelation of audio signals, which is adapted to the human auditory perception. KIPO & WIPO 2009
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