ClassID:

232258

H04S2400/09 - CPC Classification

Classification description:

Details of stereophonic systems covered by but not provided for in its groups Electronic reduction of distortion of stereophonic sound systems

Recent Application in this class:
#1
20260122440
2026-04-30

Audio Capability Discovery

#2
20260046578
2026-02-12

REMOVAL OF SPATIAL ARTIFACTS FROM AUDIO

#3
20260025629
2026-01-22

SPATIAL ALIASING REDUCTION FOR MULTI-SPEAKER CHANNELS

#4
20250220345
2025-07-03

ACOUSTIC CROSSTALK CANCELLATION BASED UPON USER POSITION AND ORIENTATION WITHIN AN ENVIRONMENT

#5
20250168583
2025-05-22

AUDIO PROCESSING

#6
20250114702
2025-04-10

Method For Decorrelating A Set Of Simulated Audio Signals In A Virtual Environment

#7
20250031001
2025-01-23

ACOUSTIC REPRODUCTION METHOD, RECORDING MEDIUM, AND ACOUSTIC REPRODUCTION DEVICE

#8
20240414496
2024-12-12

APPARATUS AND METHOD FOR HEAD-RELATED TRANSFER FUNCTION COMPRESSION

#9
20240388868
2024-11-21

Method For Decorrelating A Set Of Simulated Audio Signals

#10
20240276171
2024-08-15

METHOD FOR PROCESSING AUDIO INPUT DATA AND A DEVICE THEREOF

#11
20240171926
2024-05-23

ARTIFACT REDUCTION ON TRANSITIONS BETWEEN AUDIO TRACKS

#12
20240163627
2024-05-16

SYSTEM AND METHOD TO USE DEEP NEURAL NETWORK TO GENERATE HIGH-INTELLIGIBILITY BINAURAL SPEECH SIGNALS FROM SINGLE INPUT

#13
20240089684
2024-03-14

SPATIAL ALIASING REDUCTION FOR MULTI-SPEAKER CHANNELS

#14
20230413000
2023-12-21

METHOD FOR GENERATING A CONVERSION FILTER FOR CONVERTING A MULTIDIMENSIONAL OUTPUT AUDIO SIGNAL INTO A TWO-DIMENSIONAL AUDIO SIGNAL FOR LISTENING

#15
20230129214
2023-04-27

Method for Bi-phasic separation and re-integration on mobile media devices

#16
20220295212
2022-09-15

Audio processing

#17
20220272474
2022-08-25

Metadata-preserved audio object clustering

#18
20220210555
2022-06-30

Deep learning speaker compensation

#19
20220141610
2022-05-05

Audio signal processing method and device

#20
20210337336
2021-10-28

Acoustic crosstalk cancellation and virtual speakers techniques

#21
20200389731
2020-12-10

Low-latency audio output with variable group delay

#22
20200366990
2020-11-19

MULTI-CHANNEL SOUND IMPLEMENTATION DEVICE USING OPEN-EAR HEADPHONES AND METHOD THEREFOR

#23
20200196089
2020-06-18

Method and apparatus for acoustic crosstalk cancellation

#24
20190320279
2019-10-17

Audio device

#25
20190182447
2019-06-13

Signal processing device and signal processing method

#26
20190098407
2019-03-28

Audio signal processing stage, audio signal processing apparatus, audio signal processing method, and computer-readable storage medium

#27
20190074805
2019-03-07

Transient Detection for Speaker Distortion Reduction

#28
20180317034
2018-11-01

Head related transfer function equalization and transducer aiming of stereo dimensional array (SDA) loudspeakers

#29
20180255391
2018-09-06

Apparatus for managing distortion in a signal path and method

#30
20180206052
2018-07-19

Rendering system

#31
20180192221
2018-07-05

Asymmetric stereophonic bass compensation

#32
20170339506
2017-11-23

Metadata-preserved audio object clustering

#33
20170272863
2017-09-21

Method and apparatus for providing 3D sound for surround sound configurations

#34
20170257725
2017-09-07

Method and apparatus for acoustic crosstalk cancellation

#35
20170230772
2017-08-10

Method for creating a virtual acoustic stereo system with an undistorted acoustic center

#36
20170194009
2017-07-06

Audio signal processing device and method, encoding device and method, and program

#37
20170142534
2017-05-18

Music enhancing device for sound systems

#38
20170127207
2017-05-04

Sound recording method and device

#39
20170064481
2017-03-02

Apparatus and method for sound stage enhancement

#40
20170061982
2017-03-02

Device and method for tuning a frequency-dependent attenuation stage

#41
20170048642
2017-02-16

Effect giving device

#42
20160373861
2016-12-22

PASSIVE AUDIO HEADSET COMPATIBLE WITH BINAURAL RECORDING AND OFF-HEADSET NOISE CANCELLATION

#43
20160329063
2016-11-10

Ambient sound rendering for online meetings

#44
20160323666
2016-11-03

System and method for cognitive filtering of audio in noisy environments

#45
20160309275
2016-10-20

Calibration of acoustic echo cancelation for multi-channel sound in dynamic acoustic environments

#46
20160241985
2016-08-18

Sound field measuring device, method, and program

#47
20160240181
2016-08-18

Audio system and method for reduction and/or elimination of distortion

#48
20160234621
2016-08-11

Method for determining a stereo signal

#49
20160227329
2016-08-04

Modulation systems and methods for parametric loudspeaker systems

#50
20160203811
2016-07-14

System and method for transitioning between audio system modes

#51
20160174010
2016-06-16

Enhanced auditory experience in shared acoustic space

#52
20160174009
2016-06-16

Signal processor and signal processing method

#53
20160171968
2016-06-16

System and method for artifact masking

#54
20160155453
2016-06-02

Wind noise reduction

#55
20160142852
2016-05-19

Sound system for establishing a sound zone

#56
20160128891
2016-05-12

METHOD AND APPARATUS FOR PROVIDING SPACE INFORMATION

#57
20160100269
2016-04-07

Audio system and method for predicting acoustic feature

#58
20160071527
2016-03-10

Method and system for scaling ducking of speech-relevant channels in multi-channel audio

#59
20160037279
2016-02-04

Audio device

#60
20160020798
2016-01-21

SYSTEMS AND METHODS FOR ENHANCING AUDIO QUALITY OF FM RECEIVERS

#61
20150382129
2015-12-31

DRIVING PARAMETRIC SPEAKERS AS A FUNCTION OF TRACKED USER LOCATION

#62
20150280648
2015-10-01

Multichannel transducer devices and methods of operation thereof

#63
20150264507
2015-09-17

System and a method of providing sound to two sound zones

#64
20140362996
2014-12-11

STEREO SOUNDFIELD EXPANDER

#65
20140348353
2014-11-27

Sound system for establishing a sound zone

#66
20140294211
2014-10-02

Apparatus and method for listening room equalization using a scalable filtering structure in the wave domain

#67
20140219478
2014-08-07

Mixing device, mixing signal processing device, mixing program and mixing method

#68
20140177848
2014-06-26

Method and an apparatus for processing an audio signal

#69
20140064501
2014-03-06

Method and a system of providing information to a user

#70
20130195164
2013-08-01

Systems and methods for enhancing audio quality of FM receivers

#71
20130148824
2013-06-13

AUTO VOLUME CONTROL METHOD FOR MIXING OF SOUND SOURCES

#72
20130010970
2013-01-10

Multichannel sound reproduction method and device

#73
20130006619
2013-01-03

Method and system for scaling ducking of speech-relevant channels in multi-channel audio

#74
20130003980
2013-01-03

Audio encoder, audio encoding method and program

#75
20120237063
2012-09-20

Apparatus and method for calculating driving coefficients for loudspeakers of a loudspeaker arrangement and apparatus and method for providing drive signals for loudspeakers of a loudspeaker arrangement based on an audio signal associated with a virtual source

#76
20120237062
2012-09-20

Apparatus and method for calculating driving coefficients for loudspeakers of a loudspeaker arrangement for an audio signal associated with a virtual source

#77
20120114153
2012-05-10

Apparatus and method of reproducing surround wave field using wave field synthesis based on speaker array

#78
20120016632
2012-01-19

Method for estimating inter-channel delay and apparatus and encoder thereof

#79
20110135115
2011-06-09

Sound enhancement apparatus and method

#80
20100232617
2010-09-16

Multi-element electroacoustical transducing

#81
20100142731
2010-06-10

Method and an apparatus for processing an audio signal

#82
20100142727
2010-06-10

SOUND PROCESSING METHODS AND APPARATUS

#83
20090220111
2009-09-03

Device and method for simulation of WFS systems and compensation of sound-influencing properties

#84
20090214058
2009-08-27

Mixing system

#85
20090202082
2009-08-13

System and method for automatic multiple listener room acoustic correction with low filter orders

#86
20090177738
2009-07-09

Wireless communication system for communication of audio data

#87
20090167433
2009-07-02

Audio apparatus

#88
20090154725
2009-06-18

Acoustic correction apparatus and method for vehicle audio system

#89
20090097666
2009-04-16

Method and apparatus for compensating for near-field effect in speaker array system

#90
20080285777
2008-11-20

Parametric audio system

#91
20080159571
2008-07-03

Miniature Surround-Sound Loudspeaker

#92
20080085017
2008-04-10

Loudspeaker and microphone based on the principle of "The Center of Percussion"

#93
20070217624
2007-09-20

Audio System

#94
20060147056
2006-07-06

Phase compensation techniques to adjust for speaker deficiencies

#95
20060104452
2006-05-18

Method and apparatus to automatically set speaker modes in a multi-channel speaker system

#96
20050094821
2005-05-05

System and method for automatic multiple listener room acoustic correction with low filter orders

#97
20050018856
2005-01-27

System and method for controlling audio signals for playback

#98
16522474
2020-09-01

Low-latency audio output with variable group delay

#99
15183554
2018-11-20

Capturing and reproducing spatial sound apparatuses, methods, and systems