ClassID:

197484

G10L2021/02163 - CPC Classification

Classification description:

Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility; Speech enhancement, e.g. noise reduction or echo cancellation; Noise filtering characterised by the method used for estimating noise; Number of inputs available containing the signal or the noise to be suppressed Only one microphone

Recent Application in this class:
#1
20260073932
2026-03-12

SYSTEM AND METHOD FOR DATA AUGMENTATION AND AUDIO PROCESSING USING TINY DNN MODELS

#2
20260057897
2026-02-26

METHOD FOR PROCESSING AUDIO SIGNAL, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

#3
20260024540
2026-01-22

NEURAL NETWORK-BASED METHOD FOR PLAYBACK VOCAL AND MUSIC CANCELLATION IN HANDS-FREE KARAOKE SYSTEMS

#4
20260018184
2026-01-15

ACTIVE SOUND MANAGEMENT SYSTEM IN A WORK MACHINE

#5
20260004794
2026-01-01

DUAL-FILTER KALMAN METHOD FOR ACOUSTIC FEEDBACK CANCELLATION IN HANDS-FREE KARAOKE ENVIRONMENTS

#6
20250364004
2025-11-27

AUDIO PROCESSING METHOD AND APPARATUS, STORAGE MEDIUM, AND ELECTRONIC DEVICE

#7
20250356871
2025-11-20

KALMANNET: A LEARNABLE KALMAN FILTER FOR ACOUSTIC ECHO CANCELLATION

#8
20250322840
2025-10-16

METHOD AND SYSTEM FOR ACOUSTIC COMMUNICATION OF DATA

#9
20250285635
2025-09-11

SWITCHING AI-BASED AUDIO PROCESSING BETWEEN TX AND RX CHANNELS

#10
20250225996
2025-07-10

METHOD FOR AUDIO PROCESSING OF AN AUDIO SIGNAL CAPTURED BY A MICROPHONE

#11
20250193593
2025-06-12

MANAGING SPEAKER-INDUCED VIBRATION OF AN INFORMATION HANDLING SYSTEM

#12
20250157479
2025-05-15

EAR-WORN ELECTRONIC DEVICE INCORPORATING ANNOYANCE MODEL DRIVEN SELECTIVE ACTIVE NOISE CONTROL

#13
20250095687
2025-03-20

VIDEO PROCESSING METHOD FOR APPLICATION AND ELECTRONIC DEVICE

#14
20250029625
2025-01-23

SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM

#15
20250006184
2025-01-02

MULTIMODAL INTENT UNDERSTANDING FOR AUTOMATED ASSISTANT

#16
20240404541
2024-12-05

KALMANNET: A LEARNABLE KALMAN FILTER FOR ACOUSTIC ECHO CANCELLATION

#17
20240331717
2024-10-03

Method and system for acoustic communication of data

#18
20240221769
2024-07-04

VOICE OPTIMIZATION IN NOISY ENVIRONMENTS

#19
20240205614
2024-06-20

INTEGRATED CAMERA AND HEARING INTERFACE DEVICE

#20
20240203438
2024-06-20

NOISE SUPPRESSION FOR SPEECH DATA WITH REDUCED POWER CONSUMPTION

#21
20240135951
2024-04-25

MAPPING SOUND SOURCES IN A USER INTERFACE

#22
20240127850
2024-04-18

PRESERVING SOUNDS-OF-INTEREST IN AUDIO SIGNALS

#23
20240127840
2024-04-18

Ear-worn electronic device incorporating annoyance model driven selective active noise control

#24
20240112670
2024-04-04

EVENT SENSING SYSTEM

#25
20240105200
2024-03-28

METHOD FOR SELECTIVE NOISE SUPPRESSION IN AUDIO PLAYBACK

#26
20230395091
2023-12-07

Neural-echo: an unified deep neural network model for acoustic echo cancellation and residual echo suppression

#27
20230245673
2023-08-03

System and method for processing an audio input signal

#28
20230215422
2023-07-06

Multimodal intent understanding for automated assistant

#29
20230178092
2023-06-08

Data communication system

#30
20230178091
2023-06-08

WPE-based dereverberation apparatus using virtual acoustic channel expansion based on deep neural network

#31
20230136822
2023-05-04

Method and system to modify speech impaired messages utilizing neural network audio filters

#32
20230096876
2023-03-30

Unified deep neural network model for acoustic echo cancellation and residual echo suppression

#33
20230048798
2023-02-16

Video communications apparatus and method

#34
20230044336
2023-02-09

Audible howling control systems and methods

#35
20230005494
2023-01-05

Method and apparatus for removing noise from sound signal from microphone

#36
20220392483
2022-12-08

Action identification method, action identification device, and non-transitory computer-readable recording medium recording action identification program

#37
20220392477
2022-12-08

Operation device

#38
20220392476
2022-12-08

Systems and methods for preparing reference signals for an acoustic echo canceler

#39
20220392474
2022-12-08

Operation device

#40
20220392473
2022-12-08

Ear-worn electronic device incorporating annoyance model driven selective active noise control

#41
20220387747
2022-12-08

Sound control system and method for dental treatment

#42
20220351743
2022-11-03

Systems and methods for active noise cancellation for interior of autonomous vehicle

#43
20220323041
2022-10-13

Method, system and program product for evaluating intestinal function using bowel sounds

#44
20220322005
2022-10-06

AUDIO FEEDBACK DETECTION APPARATUS AND AUDIO FEEDBACK DETECTION METHOD

#45
20220319548
2022-10-06

Video processing method for application and electronic device

#46
20220254365
2022-08-11

Method and device for audio repair and readable storage medium

#47
20220238129
2022-07-28

Smart mask and smart mask system

#48
20220232321
2022-07-21

SYSTEMS AND METHODS FOR RETROACTIVE PROCESSING AND TRANSMISSION OF WORDS

#49
20220223165
2022-07-14

Selective suppression of noises in a sound signal

#50
20220199105
2022-06-23

Signal component estimation using coherence

#51
20220165287
2022-05-26

CONTEXT-AWARE VOICE INTELLIGIBILITY ENHANCEMENT

#52
20220103938
2022-03-31

Autoregressive based residual echo suppression

#53
20220093117
2022-03-24

Systems and methods for intelligent voice activation for auto-mixing

#54
20220078551
2022-03-10

Audio processing using distributed machine learning model

#55
20220059112
2022-02-24

Selecting audio noise reduction models for non-stationary noise suppression in an information handling system

#56
20220058378
2022-02-24

Vehicle and control method thereof

#57
20220046364
2022-02-10

METHOD FOR OPERATING A HEARING AID AND HEARING AID

#58
20220028405
2022-01-27

Background noise estimation using gap confidence

#59
20210400384
2021-12-23

Method for operating a device having a speaker so as to prevent unexpected audio output

#60
20210375298
2021-12-02

Voice processing method, apparatus, electronic device, and storage medium

#61
20210366465
2021-11-25

Event sensing system

#62
20210349549
2021-11-11

NOISE-CANCELLING KEYBOARD

#63
20210335378
2021-10-28

Encoding parameter adjustment method and apparatus, device, and storage medium

#64
20210304752
2021-09-30

In-vehicle speech processing apparatus

#65
20210289296
2021-09-16

Audio processing using distributed machine learning model

#66
20210272579
2021-09-02

Audio signal processing device

#67
20210272560
2021-09-02

Subaudible tones to validate audio signals

#68
20210264934
2021-08-26

Signal processing apparatus and signal processing method

#69
20210264933
2021-08-26

Sound signal processing system apparatus for avoiding adverse effects on speech recognition

#70
20210250691
2021-08-12

Audio feedback detection and suppression

#71
20210249029
2021-08-12

Background noise estimation using gap confidence

#72
20210249028
2021-08-12

Method and an audio processing unit for detecting a tone

#73
20210243525
2021-08-05

Method and apparatus for attenuation of audio howling

#74
20210174820
2021-06-10

SIGNAL PROCESSING APPARATUS, VOICE SPEECH COMMUNICATION TERMINAL, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM

#75
20210174818
2021-06-10

Ear-worn electronic device incorporating annoyance model driven selective active noise control

#76
20210144474
2021-05-13

Echo suppression device, echo suppression method and echo suppression program

#77
20210125629
2021-04-29

Voice recordings using acoustic quality measurement models and actionable acoustic improvement suggestions

#78
20210118461
2021-04-22

User voice control system

#79
20210110840
2021-04-15

Hybrid noise suppression

#80
20210051404
2021-02-18

Echo cancellation method and apparatus based on time delay estimation

#81
20210012789
2021-01-14

System and method for reducing distortion and echo leakage in hands-free communication

#82
20210012788
2021-01-14

Audio alert audibility estimation method and system

#83
20200411029
2020-12-31

Method and device for updating coefficient vector of finite impulse response filter

#84
20200389729
2020-12-10

Root mean square adaptive filtering for ambient noise compensation systems

#85
20200389728
2020-12-10

Voice denoising method and apparatus, server and storage medium

#86
20200389718
2020-12-10

Annoyance noise suppression

#87
20200349916
2020-11-05

Parallel noise cancellation filters

#88
20200337657
2020-10-29

Communication apparatus, and medical apparatus

#89
20200322725
2020-10-08

Dynamic device speaker tuning for echo control

#90
20200296510
2020-09-17

INTELLIGENT INFORMATION CAPTURING IN SOUND DEVICES

#91
20200273479
2020-08-27

Systems and methods for active noise cancellation for interior of autonomous vehicle

#92
20200258536
2020-08-13

In-vehicle intelligent WiFi microphone and audio delay processing method therefor

#93
20200251122
2020-08-06

Information handling system microphone noise reduction

#94
20200194023
2020-06-18

Systems and methods for active noise cancellation for interior of autonomous vehicle

#95
20200160877
2020-05-21

METHOD AND SYSTEM FOR PROCESSING AUDIO SIGNALS FOR A MICROPHONE OF AN AIRCRAFT OXYGEN MASK

#96
20200160875
2020-05-21

Ear-worn electronic device incorporating annoyance model driven selective active noise control

#97
20200066257
2020-02-27

Event sensing system

#98
20200035255
2020-01-30

Method, system and storage medium for solving echo cancellation failure

#99
20190392853
2019-12-26

Multi-channel echo cancellation with scenario memory

#100
20190371354
2019-12-05

Systems and methods for intelligent voice activation for auto-mixing

#101
20190335291
2019-10-31

Processing in sub-bands of an actual ambisonic content for improved decoding

#102
20190304482
2019-10-03

Infinite impulse response acoustic echo cancellation in the frequency domain

#103
20190237091
2019-08-01

Method and system for acoustic communication of data

#104
20190198037
2019-06-27

Method of managing adaptive feedback cancellation in hearing devices and hearing devices configured to carry out such method

#105
20190132679
2019-05-02

Low delay decimator and interpolator filters

#106
20190130926
2019-05-02

Ear-worn electronic device incorporating annoyance model driven selective active noise control

#107
20190130925
2019-05-02

Real time device customization apparatus and methods of performing the same

#108
20190124440
2019-04-25

Microphone assembly with pulse density modulated signal

#109
20190096420
2019-03-28

METHOD AND APPARATUS FOR AUDIO FILTER TO BLOCK NOISE FROM COMMUNICATION DEVICES

#110
20190074025
2019-03-07

Acoustic echo cancellation (AEC) rate adaptation

#111
20190066711
2019-02-28

VOICE FILTERING SYSTEM AND METHOD

#112
20190037301
2019-01-31

Annoyance noise suppression

#113
20180366146
2018-12-20

Signal processor for speech enhancement and recognition by using two output terminals designated for noise reduction

#114
20180350383
2018-12-06

Dynamic spectral filtering

#115
20180330743
2018-11-15

Annoyance noise suppression

#116
20180322896
2018-11-08

Sound collection apparatus, sound collection method, recording medium recording sound collection program, and dictation method

#117
20180286424
2018-10-04

Voice-based realtime audio attenuation

#118
20180167727
2018-06-14

Microphone assembly with pulse density modulated signal

#119
20180075833
2018-03-15

Audio signal processing apparatus, audio signal processing method, and audio signal processing program

#120
20180053518
2018-02-22

Method and apparatus to improve speech recognition in a high audio noise environment

#121
20180018984
2018-01-18

Assessment and adjustment of audio installation

#122
20170230750
2017-08-10

Microphone assembly with pulse density modulated signal

#123
20170213567
2017-07-27

NOISE SUPPRESSION SYSTEM AND METHOD

#124
20170178663
2017-06-22

Echo canceller device

#125
20170142512
2017-05-18

Annoyance noise suppression

#126
20160343385
2016-11-24

Method and apparatus for suppressing wind noise

#127
20160180862
2016-06-23

Signal processing method, signal processing device, and signal processing program

#128
20160163327
2016-06-09

Automatic timbre control

#129
20160064010
2016-03-03

Method and apparatus for eliminating music noise via a nonlinear attenuation/gain function

#130
20160019909
2016-01-21

Acoustic echo mitigation apparatus and method, audio processing apparatus and voice communication terminal

#131
20150318000
2015-11-05

Single MIC detection in beamformer and noise canceller for speech enhancement

#132
20150071036
2015-03-12

Dynamic threshold systems, computer readable medium, and program code for filtering noise and restoring attenuated high-frequency components of acoustic signals

#133
20150071035
2015-03-12

Dynamic threshold methods for filtering noise and restoring attenuated high-frequency components of acoustic signals

#134
20150025880
2015-01-22

Method for processing speech signals using an ensemble of speech enhancement procedures

#135
20140350927
2014-11-27

Device and method for suppressing noise signal, device and method for detecting special signal, and device and method for detecting notification sound

#136
20140249809
2014-09-04

Audio signal noise attenuation

#137
20140114650
2014-04-24

Method for Transforming Non-Stationary Signals Using a Dynamic Model

#138
20130035933
2013-02-07

Audio signal processing apparatus and audio signal processing method

#139
20130003987
2013-01-03

Noise suppression device

#140
20120213395
2012-08-23

Method and device for estimating interference noise, hearing device and hearing aid

#141
20120197636
2012-08-02

System and method for single-channel speech noise reduction

#142
20120191447
2012-07-26

Method and apparatus for masking wind noise

#143
20120134508
2012-05-31

Audio Processing Apparatus

#144
20120008802
2012-01-12

Voice detection for automatic volume controls and voice sensors

#145
20110246193
2011-10-06

SIGNAL SEPARATION METHOD, AND COMMUNICATION SYSTEM SPEECH RECOGNITION SYSTEM USING THE SIGNAL SEPARATION METHOD

#146
20110224979
2011-09-15

Enhancing speech recognition using visual information

#147
20110166856
2011-07-07

Noise profile determination for voice-related feature

#148
20110123044
2011-05-26

Method and apparatus for suppressing wind noise

#149
20110099007
2011-04-28

NOISE ESTIMATION USING AN ADAPTIVE SMOOTHING FACTOR BASED ON A TEAGER ENERGY RATIO IN A MULTI-CHANNEL NOISE SUPPRESSION SYSTEM

#150
20110096942
2011-04-28

NOISE SUPPRESSION SYSTEM AND METHOD

#151
20100262425
2010-10-14

Noise suppression device and noise suppression method

#152
20100239104
2010-09-23

System for attenuating noise in an input signal

#153
20100111329
2010-05-06

Sound processing apparatus, sound processing method and program

#154
20090254340
2009-10-08

Noise reduction

#155
20080101622
2008-05-01

Signal processing method, signal processing device, and signal processing program

#156
20080059180
2008-03-06

Multi-channel codebook dependent compensation

#157
20080037811
2008-02-14

Electronic devices, methods, and computer program products for detecting noise in a signal based on autocorrelation coefficient gradients

#158
20050038838
2005-02-17

Electronic devices, methods, and computer program products for detecting noise in a signal based on autocorrelation coefficient gradients

#159
17503668
2023-02-07

Method of suppressing wind noise of microphone and electronic device

#160
17108718
2022-12-06

Systems and methods for noise cancellation

#161
16375794
2020-05-12

Dynamic device speaker tuning for echo control

#162
16032494
2020-05-12

Echo latency estimation

#163
15627174
2018-02-13

System and method for selective volume adjustment in a vehicle

#164
15044495
2017-11-07

Synchronization of inbound and outbound audio in a heterogeneous echo cancellation system

#165
14992766
2018-07-03

Voice-based realtime audio attenuation

#166
14941458
2017-03-07

Annoyance noise suppression

#167
14629864
2018-05-22

Noise suppressor