| 54 |
Titel |
TI |
[EN] METHOD AND ACOUSTIC SIGNAL PROCESSING SYSTEM FOR INTERFERENCE AND NOISE SUPPRESSION IN BINAURAL MICROPHONE CONFIGURATIONS |
| 71/73 |
Anmelder/Inhaber |
PA |
KELLERMANN WALTER, DE
;
REINDL KLAUS, DE
;
SIEMENS MEDICAL INSTR PTE LTD, SG
;
ZHENG YUANHANG, DE
|
| 72 |
Erfinder |
IN |
KELLERMANN WALTER, DE
;
REINDL KLAUS, DE
;
ZHENG YUANHANG, DE
|
| 22/96 |
Anmeldedatum |
AD |
07.06.2011 |
| 21 |
Anmeldenummer |
AN |
201113154738 |
|
Anmeldeland |
AC |
US |
|
Veröffentlichungsdatum |
PUB |
15.12.2011 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
EP
10005957
20100609
|
| 51 |
IPC-Hauptklasse |
ICM |
G10L 21/02
(2006.01)
|
| 51 |
IPC-Nebenklasse |
ICS |
H04R 5/00
(2006.01)
|
|
IPC-Zusatzklasse |
ICA |
|
|
IPC-Indexklasse |
ICI |
|
|
Gemeinsame Patentklassifikation |
CPC |
G10L 2021/02165
G10L 2021/02168
G10L 2021/065
G10L 21/0208
H04R 2225/43
H04R 2430/03
H04R 2430/25
H04R 25/407
H04R 25/552
H04R 3/005
|
|
MCD-Hauptklasse |
MCM |
G10L 21/02
(2006.01)
|
|
MCD-Nebenklasse |
MCS |
G10L 21/0208
(2013.01)
H04R 5/00
(2006.01)
|
|
MCD-Zusatzklasse |
MCA |
G10L 21/00
(2006.01)
G10L 21/0216
(2013.01)
G10L 21/06
(2013.01)
|
| 57 |
Zusammenfassung |
AB |
[EN] A method determines a bias reduced noise and interference estimation in a binaural microphone configuration with a right and a left microphone signal at a time-frame with a target speaker active. The method includes a determination of the auto power spectral density estimate of the common noise formed of noise and interference components of the right and left microphone signals and a modification of the auto power spectral density estimate of the common noise by using an estimate of the magnitude squared coherence of the noise and interference components contained in the right and left microphone signals determined at a time frame without a target speaker active. An acoustic signal processing system and a hearing aid implement the method for determining the bias reduced noise and interference estimation. The noise reduction performance of speech enhancement algorithms is improved by the invention. Further, distortions of the target speech signal and residual noise and interference components are reduced. |
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt |
CT |
US000005400409A
US000006473733B1
US000007953596B2
US000008098844B2
US000008116478B2
US000008121311B2
US000008195246B2
US000008238575B2
US000008296136B2
US000008392184B2
US000008620672B2
US000008660281B2
US020030014248A1
US020080159559A1
US020100166199A1
|
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt |
CT |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt |
CTNP |
Carter, G. Clifford, C. Knapp, and Albert H. Nuttall. "Statistics of the estimate of the magnitute-coherence function." Audio and Electroacoustics, IEEE Transactions on 21.4 (1973): 388-389. 9;
Freudenberger, Jürgen, Sebastian Stenzel, and Benjamin Venditti. "A noise PSD and cross-PSD estimation for two-microphone speech enhancement systems." Statistical Signal Processing, 2009. SSP'09. IEEE/SP 15th Workshop on. IEEE, 2009. 9;
Guérin, Alexandre, Régine Le Bouquin-Jeannés, and Gérard Faucon. "A two-sensor noise reduction system: applications for hands-free car kit." EURASIP Journal on Applied Signal Processing 2003 (2003): 1125-1134. 9;
McCowan, Iain A., and Hervé Bourlard. "Microphone array post-filter based on noise field coherence." Speech and Audio Processing, IEEE Transactions on 11.6 (2003): 709-716. 9;
Wittkop, Thomas, and Volker Hohmann. "Strategy-selective noise reduction for binaural digital hearing aids." Speech Communication 39.1 (2003): 111-138. 9
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt |
CTNP |
|
|
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Prüfstoff-IPC |
ICP |
G10L 21/02
H04R 5/00
|
