FIELD: acoustics.
SUBSTANCE: invention relates to multichannel interference suppression devices. Device comprises a first adaptive filter configured to generate a first estimate of a first interference signal depending on a reference signal. Device comprises first interference suppression means, configured to generate a first modified audio channel from two or more modified audio channels based on the first received audio channel from the two or more received audio channels depending on the first estimate of the first interference signal. Besides, the device comprises a second adaptive filter configured to generate a second estimate of the second interference signal depending on the first estimate of the first intermix signal. Besides, the device has the second mutual interference suppression device, configured to generate a second modified audio channel from two or more modified audio channels based on the second received audio channel from the two or more received audio channels depending on the second estimate of the second interference signal.
EFFECT: technical result is reduction of mutual interference.
15 cl, 8 dwg
Title | Year | Author | Number |
---|---|---|---|
MULTICHANNEL ACOUSTIC ECHO CANCELLATION | 2010 |
|
RU2546717C2 |
ACOUSTIC ECHO SUPPRESSION UNIT | 2020 |
|
RU2801125C1 |
ACOUSTIC ECHO SUPPRESSING DEVICE AND FRONT-END CONFERENCE CALL DEVICE | 2009 |
|
RU2520359C2 |
ESTIMATING ROOM IMPULSE RESPONSE FOR ACOUSTIC ECHO CANCELLING | 2014 |
|
RU2685053C2 |
APPARATUS AND METHOD FOR COMPUTING FILTER COEFFICIENTS FOR ECHO SUPPRESSION | 2009 |
|
RU2485607C2 |
DEVICE FOR MULTICHANNEL ADAPTIVE ECHO SIGNAL COMPENSATION | 2019 |
|
RU2722220C1 |
METHOD AND APPARATUS FOR AUDIO INTERFERENCE ESTIMATION | 2013 |
|
RU2651616C2 |
APPARATUS AND METHOD FOR CENTRE SIGNAL SCALING AND STEREOPHONIC ENHANCEMENT BASED ON SIGNAL-TO-DOWNMIX RATIO | 2014 |
|
RU2663345C2 |
ECHO SUPPRESSION COMPRISING SIMULATION OF LATE REVERBERATION COMPONENTS | 2011 |
|
RU2569006C2 |
APPARATUS AND METHOD OF CALCULATING CONTROL PARAMETERS OF ECHO SUPPRESSION FILTER AND APPARATUS AND METHOD OF CALCULATING DELAY VALUE | 2009 |
|
RU2495506C2 |
Authors
Dates
2020-10-28—Published
2018-04-19—Filed