ClassID:

197462

G10L19/173 - CPC Classification

Classification description:

Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques; Vocoder architecture Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding

Recent Application in this class:
#1
20260129400
2026-05-07

Multi-Channel Signal Encoding Method, Multi-Channel Signal Decoding Method, Encoder, and Decoder

#2
20260075282
2026-03-12

Distributing Audio Content in a Media Playback System

#3
20250391414
2025-12-25

AUDIO WIDENING UTILIZING METADATA

#4
20250364003
2025-11-27

TRANSFORMER SEQUENCED ORDER-EXTRACTED ENSEMBLE COMPRESSION

#5
20250363999
2025-11-27

METHODS AND APPARATUSES FOR DTX HANGOVER IN AUDIO CODING

#6
20250356867
2025-11-20

Methods, Encoder And Decoder For Linear Predictive Encoding And Decoding Of Sound Signals Upon Transition Between Frames Having Different Sampling Rates

#7
20250342842
2025-11-06

MULTI-CHANNEL TRANSCODER

#8
20250336405
2025-10-30

Voicing Smoother

#9
20250316283
2025-10-09

Quality Score Predictor for Transcoded Data

#10
20250201257
2025-06-19

Audio Compression With Generative Adversarial Networks

#11
20250140270
2025-05-01

METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO IDENTIFY SOURCES OF NETWORK STREAMING SERVICES

#12
20250087225
2025-03-13

Transcoding Audio Frames and Converting Metadata Frames based on a Target Encoder

#13
20250069608
2025-02-27

LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES

#14
20250061903
2025-02-20

LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES

#15
20250061902
2025-02-20

LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES

#16
20240404533
2024-12-05

APPARATUS AND METHOD FOR PROVIDING ENHANCED GUIDED DOWNMIX CAPABILITIES FOR 3D AUDIO

#17
20240373047
2024-11-07

AUDIO AND VIDEO TRANSCODING APPARATUS AND METHOD, DEVICE, MEDIUM, AND PRODUCT

#18
20240312477
2024-09-19

Multichannel Audio Speech Classification

#19
20240214731
2024-06-27

SOMATOSENSORY VIBRATOR FOR A WEARABLE DEVICE

#20
20240098159
2024-03-21

System and method for external communications to/from radios in a radio network

#21
20240087585
2024-03-14

ENCODING METHOD AND APPARATUS, DECODING METHOD AND APPARATUS, DEVICE, STORAGE MEDIUM, AND COMPUTER PROGRAM

#22
20240056764
2024-02-15

Multi-Channel Signal Encoding Method, Multi-Channel Signal Decoding Method, Encoder, and Decoder

#23
20240007812
2024-01-04

SYSTEMS AND METHODS FOR WIRELESS SURROUND SOUND

#24
20230402045
2023-12-14

LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES

#25
20230386505
2023-11-30

Multichannel audio speech classification

#26
20230326472
2023-10-12

Methods, Encoder And Decoder For Linear Predictive Encoding And Decoding Of Sound Signals Upon Transition Between Frames Having Different Sampling Rates

#27
20230306977
2023-09-28

PROCESSING OF AUDIO DATA USING A PLURALITY OF DISTRIBUTED COMPUTER DEVICES

#28
20230252999
2023-08-10

Methods, apparatus and articles of manufacture to identify sources of network streaming services

#29
20230238005
2023-07-27

Apparatus, Method, or Computer Program for Processing an Encoded Audio Scene using a Parameter Smoothing

#30
20230080183
2023-03-16

METHODS AND APPARATUSES FOR DTX HANGOVER IN AUDIO CODING

#31
20230075562
2023-03-09

Audio Transcoding Method and Apparatus, Audio Transcoder, Device, and Storage Medium

#32
20230022258
2023-01-26

Concept for switching of sampling rates at audio processing devices

#33
20230011987
2023-01-12

LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES

#34
20230011775
2023-01-12

LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES

#35
20230009374
2023-01-12

LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES

#36
20220358943
2022-11-10

Dynamic Transcoding for Enhancing Audio Playback

#37
20220358187
2022-11-10

Audio encryption in a media playback system

#38
20220351739
2022-11-03

Methods and apparatus to perform audio watermarking and watermark detection and extraction

#39
20220230645
2022-07-21

Sound quality detection method and device for homologous audio and storage medium

#40
20220167318
2022-05-26

Systems and methods for reducing transcoding resource allocation during call setup to multiple terminations

#41
20220165281
2022-05-26

Audio codec extension

#42
20220084530
2022-03-17

Multipoint control method, apparatus and program

#43
20220046376
2022-02-10

Multi-channel signal encoding method, multi-channel signal decoding method, encoder, and decoder

#44
20210383818
2021-12-09

Apparatus and method for processing an encoded audio signal by upsampling a core audio signal to upsampled spectra with higher frequencies and spectral width

#45
20210375296
2021-12-02

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#46
20210144505
2021-05-13

Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion

#47
20210134304
2021-05-06

Apparatus and method for providing enhanced guided downmix capabilities for 3D audio

#48
20210118458
2021-04-22

Method and system for parallel audio transcoding

#49
20210089863
2021-03-25

Method and apparatus for recurrent auto-encoding

#50
20210027792
2021-01-28

Methods, apparatus and articles of manufacture to identify sources of network streaming services

#51
20210014632
2021-01-14

Multi-channel signal encoding method, multi-channel signal decoding method, encoder, and decoder

#52
20200381001
2020-12-03

Concept for switching of sampling rates at audio processing devices

#53
20200321015
2020-10-08

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM

#54
20200227054
2020-07-16

Low bitrate audio encoding/decoding scheme having cascaded switches

#55
20200196079
2020-06-18

Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion

#56
20200143817
2020-05-07

Methods, Apparatus and Systems for Determining Reconstructed Audio Signal

#57
20200127846
2020-04-23

Metadata transcoding

#58
20200126569
2020-04-23

Frame coding for spatial audio data

#59
20200045494
2020-02-06

Multi-channel signal encoding method, multi-channel signal decoding method, encoder, and decoder

#60
20200035253
2020-01-30

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#61
20190371345
2019-12-05

Smart coding mode switching in audio rate adaptation

#62
20190311723
2019-10-10

Low-complexity packet loss concealment for transcoded audio signals

#63
20190297419
2019-09-26

Signature tuning filters

#64
20190287540
2019-09-19

Apparatus and method for providing enhanced guided downmix capabilities for 3D audio

#65
20190267014
2019-08-29

Methods and apparatuses for DTX hangover in audio coding

#66
20190259397
2019-08-22

Coding of a soundfield representation

#67
20190259393
2019-08-22

Low bitrate audio encoding/decoding scheme having cascaded switches

#68
20190221223
2019-07-18

Methods and apparatus for supporting encoding, decoding and/or transcoding of content streams in a communication system

#69
20190220949
2019-07-18

Methods and apparatus for supporting communication of content streams using efficient memory organization

#70
20190172472
2019-06-06

Methods, apparatus and systems for determining reconstructed audio signal

#71
20190141464
2019-05-09

Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion

#72
20190122673
2019-04-25

Methods, apparatus and articles of manufacture to identify sources of network streaming services

#73
20190074021
2019-03-07

Methods and apparatus to perform audio watermarking and watermark detection and extraction

#74
20190069120
2019-02-28

Game streaming with spatial audio

#75
20180374493
2018-12-27

SYSTEM, CONTROL METHOD, AND CONTROL TERMINAL

#76
20180350392
2018-12-06

Sound file sound quality identification method and apparatus

#77
20180293994
2018-10-11

Apparatus and method for processing an encoded audio signal by a mapping drived by SBR from QMF onto MCLT

#78
20180233157
2018-08-16

Device and method for processing internal channel for low complexity format conversion

#79
20180218740
2018-08-02

Coding of a soundfield representation

#80
20180204581
2018-07-19

Methods, apparatus and systems for determining reconstructed audio signal

#81
20180137871
2018-05-17

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#82
20180077279
2018-03-15

System and a method for selecting a ring back tone to be provided to a caller

#83
20180075856
2018-03-15

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#84
20180041924
2018-02-08

Communication node, terminal, and communication control method

#85
20180014136
2018-01-11

Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion

#86
20170373857
2017-12-28

Metadata transcoding

#87
20170346954
2017-11-30

Voice signal processing method, related apparatus, and system

#88
20170286053
2017-10-05

SYSTEM AND METHOD FOR REAL-TIME ADJUSTMENT OF VOLUME DURING LIVE BROADCASTING

#89
20170249946
2017-08-31

Apparatus and method for providing enhanced guided downmix capabilities for 3D audio

#90
20170243595
2017-08-24

Encoding and decoding of audio signals

#91
20170235543
2017-08-17

Audio transmitter and receiver

#92
20170154635
2017-06-01

Concept for switching of sampling rates at audio processing devices

#93
20170142178
2017-05-18

SERVER DEVICE, INFORMATION PROCESSING METHOD FOR SERVER DEVICE, AND PROGRAM

#94
20170105082
2017-04-13

Conversion from channel-based audio to HOA

#95
20170061975
2017-03-02

Methods and apparatus to perform audio watermarking and watermark detection and extraction

#96
20170053658
2017-02-23

High-band target signal control

#97
20160373696
2016-12-22

Virtual multipoint control unit for unified communications

#98
20160293173
2016-10-06

Transition from a transform coding/decoding to a predictive coding/decoding

#99
20160286332
2016-09-29

Encoding device and method, decoding device and method, and program

#100
20160286312
2016-09-29

Signature tuning filters

#101
20160232911
2016-08-11

High frequency regeneration of an audio signal by copying in a circular manner

#102
20160088416
2016-03-24

Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion

#103
20160078876
2016-03-17

Speech transcoding in packet networks

#104
20160055858
2016-02-25

System and method for reducing tandeming effects in a communication system

#105
20160019903
2016-01-21

Optimized mixing of audio streams encoded by sub-band encoding

#106
20160019902
2016-01-21

Optimized partial mixing of audio streams encoded by sub-band encoding

#107
20160005409
2016-01-07

Methods and apparatuses for DTX hangover in audio coding

#108
20150372820
2015-12-24

Metadata transcoding

#109
20150371653
2015-12-24

System and method for speech enhancement on compressed speech

#110
20150325234
2015-11-12

Systems and methods for configuring matching rules related to voice input commands

#111
20150302861
2015-10-22

Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates

#112
20150269950
2015-09-24

Reduced complexity converter SNR calculation

#113
20150256789
2015-09-10

Method, apparatus and terminal for playing multimedia content

#114
20150228286
2015-08-13

Processing audio objects in principal and supplementary encoded audio signals

#115
20150154968
2015-06-04

Apparatus and methods for adapting audio information in spatial audio object coding

#116
20150154967
2015-06-04

Low bitrate audio encoding/decoding scheme having cascaded switches

#117
20150051906
2015-02-19

Hierarchical active voice detection

#118
20150043756
2015-02-12

Audio scene mapping apparatus

#119
20140362998
2014-12-11

Directional coding conversion

#120
20140350944
2014-11-27

Encoding and reproduction of three dimensional audio soundtracks

#121
20140297290
2014-10-02

Apparatus and method for decoding audio data

#122
20140188488
2014-07-03

Reduced complexity converter SNR calculation

#123
20140135963
2014-05-15

System and method for high dynamic range audio distribution

#124
20130194507
2013-08-01

Methods and apparatus for mixing compressed digital bit streams

#125
20130132098
2013-05-23

Apparatus and method for coding and decoding multi-object audio signal with various channel including information bitstream conversion

#126
20130117032
2013-05-09

Transcoder with dynamic audio channel changing

#127
20130096930
2013-04-18

Multi-resolution switched audio encoding/decoding scheme

#128
20130085750
2013-04-04

Communication system, method, and apparatus

#129
20130066640
2013-03-14

Audio encoding/decoding scheme having a switchable bypass

#130
20130034247
2013-02-07

Method, device, and system for mixing processing of audio signal

#131
20130016842
2013-01-17

Apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal

#132
20120328121
2012-12-27

Reconstructing an audio signal by spectral component regeneration and noise blending

#133
20120158410
2012-06-21

DIGITAL AUDIO SIGNAL PROCESSING SYSTEM

#134
20120136669
2012-05-31

Transcoding method, apparatus, device and system

#135
20120134442
2012-05-31

Data format conversion for electronic devices

#136
20120128177
2012-05-24

Circular frequency translation with noise blending

#137
20120123787
2012-05-17

AUDIOAUDIO FORMAT CONVERTING APPARATUS AND AUDIOAUDIO FORMAT CONVERTING METHOD

#138
20120109643
2012-05-03

Adaptive audio transcoding

#139
20110264448
2011-10-27

Method for high quality audio transcoding

#140
20110238425
2011-09-29

Multi-resolution switched audio encoding/decoding scheme

#141
20110235632
2011-09-29

Method And Apparatus For Performing High-Quality Speech Communication Across Voice Over Internet Protocol (VoIP) Communications Networks

#142
20110231196
2011-09-22

Dual-mode encoder, system including same, and method for generating infra-red signals

#143
20110208528
2011-08-25

Signal clipping protection using pre-existing audio gain metadata

#144
20110202355
2011-08-18

Audio encoding/decoding scheme having a switchable bypass

#145
20110202354
2011-08-18

Low bitrate audio encoding/decoding scheme having cascaded switches

#146
20110200198
2011-08-18

Low bitrate audio encoding/decoding scheme with common preprocessing

#147
20110189994
2011-08-04

Handoffs between different voice encoder systems

#148
20110172993
2011-07-14

Single channel EVRCx, ISLP and G.711 transcoding in packet networks

#149
20110137662
2011-06-09

Audio signal transformatting

#150
20110060596
2011-03-10

Method for decoding an audio signal that has a base layer and an enhancement layer

#151
20110046761
2011-02-24

Recorded Media Enhancement Method

#152
20110028215
2011-02-03

Video game system with mixing of independent pre-encoded digital audio bitstreams

#153
20110022398
2011-01-27

Method and apparatus for transcoding audio data

#154
20110013790
2011-01-20

Apparatus and method for multi-channel parameter transformation

#155
20110004478
2011-01-06

Method and apparatus for transforming between different filter bank domains

#156
20100254548
2010-10-07

Audio mixing/reproducing device

#157
20100223062
2010-09-02

Methods and apparatus to perform audio watermarking and watermark detection and extraction

#158
20100223053
2010-09-02

Efficient speech stream conversion

#159
20100185440
2010-07-22

Transcoding method, transcoding device and communication apparatus used between discontinuous transmission

#160
20100166191
2010-07-01

Method and apparatus for conversion between multi-channel audio formats

#161
20100153122
2010-06-17

Multi-staging recursive audio frame-based resampling and time mapping

#162
20100114582
2010-05-06

Apparatus and method for coding and decoding multi-object audio signal with various channel including information bitstream conversion

#163
20100094620
2010-04-15

Voice transcoder

#164
20100083344
2010-04-01

Transcoding of audio metadata

#165
20100075606
2010-03-25

Selective transcoding of encoded media files

#166
20090307294
2009-12-10

Conversion Between Sub-Band Field Representations for Time-Varying Filter Banks

#167
20090299737
2009-12-03

Method for adapting for an interoperability between short-term correlation models of digital signals

#168
20090281799
2009-11-12

Tandem-free vocoder operations between non-compatible communication systems

#169
20090259462
2009-10-15

Comfort noise information handling for audio transcoding applications

#170
20090252356
2009-10-08

Spatial audio analysis and synthesis for binaural reproduction and format conversion

#171
20090240507
2009-09-24

Method and device for transcoding audio signals exclduing transformation coefficients below −60 decibels

#172
20090220094
2009-09-03

PROCESSING CIRCUIT CAPABLE OF MODIFYING DIGITAL AUDIO SIGNALS

#173
20090198753
2009-08-06

Data processing method by passage between different sub-band domains

#174
20090192806
2009-07-30

Broadband frequency translation for high frequency regeneration

#175
20090177467
2009-07-09

Detector for use in voice communications systems

#176
20090174582
2009-07-09

Code conversion device, code conversion method used for the same and program thereof

#177
20090170435
2009-07-02

Data format conversion for electronic devices

#178
20090129576
2009-05-21

RELAY DEVICE, COMMUNICATION TERMINAL, SIGNAL DECODER, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM

#179
20090125315
2009-05-14

Audio transcoder using encoder-generated side information to transcode to target bit-rate

#180
20090106031
2009-04-23

Method and apparatus for re-encoding signals

#181
20090046819
2009-02-19

Method of reducing quantization noise

#182
20090037180
2009-02-05

TRANSCODING METHOD AND APPARATUS

#183
20090012784
2009-01-08

Speech transcoding in GSM networks

#184
20080306732
2008-12-11

Method and device for carrying out optimal coding between two long-term prediction models

#185
20080288245
2008-11-20

Tandem-free intersystem voice communication

#186
20080260048
2008-10-23

Transcoder and Method of Transcoding Therefore

#187
20080253440
2008-10-16

Methods and apparatus for mixing compressed digital bit streams

#188
20080243489
2008-10-02

Multiple stream decoder

#189
20080234846
2008-09-25

Transform domain transcoding and decoding of audio data using integer-reversible modulated lapped transforms

#190
20080232617
2008-09-25

Multichannel surround format conversion and generalized upmix

#191
20080232616
2008-09-25

Method and apparatus for conversion between multi-channel audio formats

#192
20080215342
2008-09-04

SYSTEM AND METHOD FOR ENHANCING PERCEPTUAL QUALITY OF LOW BIT RATE COMPRESSED AUDIO DATA

#193
20080195384
2008-08-14

Method for high quality audio transcoding

#194
20080189101
2008-08-07

Method for adaptive codebook pitch-lag computation in audio transcoders

#195
20080165799
2008-07-10

Systems and methods for dimming a first packet associated with a first bit rate to a second packet associated with a second bit rate

#196
20080133224
2008-06-05

METHOD AND SYSTEM FOR UTILIZING RATE CONVERSION FILTERS TO REDUCE MIXING COMPLEXITY DURING MULTIPATH MULTI-RATE AUDIO PROCESSING

#197
20080120114
2008-05-22

Method, Apparatus and Computer Program Product for Performing Stereo Adaptation for Audio Editing

#198
20080086313
2008-04-10

Signal processing apparatus, signal processing method, and computer program

#199
20080077401
2008-03-27

Transcoding method and system between CELP-based speech codes with externally provided status

#200
20080071528
2008-03-20

Method and system for efficient transcoding of audio data

#201
20080058972
2008-03-06

Data selection system, data selection apparatus, data selection method, and data selection program

#202
20080052264
2008-02-28

Content transfer system, information processing apparatus, transfer method, and program

#203
20080043831
2008-02-21

Technique for transcoding MPEG-2/MPEG-4 bitstream to H.264 bitstream

#204
20080015866
2008-01-17

Interchangeable noise feedback coding and code excited linear prediction encoders

#205
20070299659
2007-12-27

Vocoder and associated method that transcodes between mixed excitation linear prediction (MELP) vocoders with different speech frame rates

#206
20070288234
2007-12-13

Method and apparatus for audio transcoding

#207
20070257711
2007-11-08

Sampling rate conversion calculating apparatus

#208
20070250308
2007-10-25

Method and device for transcoding

#209
20070203695
2007-08-30

Method and apparatus for transforming a digital audio signal and for inversely transforming a transformed digital audio signal

#210
20070124138
2007-05-31

Transcoding between the indices of multipulse dictionaries used in compressive coding of digital signals

#211
20070094018
2007-04-26

MELP-to-LPC transcoder

#212
20070094017
2007-04-26

Frequency domain format enhancement

#213
20070088545
2007-04-19

LPC-to-MELP transcoder

#214
20070067165
2007-03-22

Correlation domain formant enhancement

#215
20070055512
2007-03-08

Compressed domain voice activity detector

#216
20070033057
2007-02-08

Time-scale modification of data-compressed audio information

#217
20060265227
2006-11-23

Audio decoding device

#218
20060259168
2006-11-16

Audio file format conversion

#219
20060224389
2006-10-05

Code conversion method and device, program, and recording medium

#220
20060222084
2006-10-05

Apparatus and method of code conversion and recording medium that records program for computer to execute the method

#221
20060217988
2006-09-28

Method and apparatus for adaptive level control

#222
20060217980
2006-09-28

Code conversion method and device

#223
20060217971
2006-09-28

Method and apparatus for modifying an encoded signal

#224
20060217970
2006-09-28

Method and apparatus for noise reduction

#225
20060212289
2006-09-21

Apparatus and method for converting voice packet rate

#226
20060190246
2006-08-24

Transcoding method for switching between selectable mode voice encoder and an enhanced variable rate CODEC

#227
20060173691
2006-08-03

Audio mixing processing apparatus and audio mixing processing method

#228
20060168297
2006-07-27

Real-time multimedia transcoding apparatus and method using personal characteristic information

#229
20060159185
2006-07-20

Method and device for changing an encoding mode of encoded data streams

#230
20060149537
2006-07-06

Code conversion method and device for code conversion

#231
20060095255
2006-05-04

Pitch conversion method for reducing complexity of transcoder

#232
20060069565
2006-03-30

Compressed data processing apparatus and method and compressed data processing program

#233
20060034260
2006-02-16

Interoperability for wireless user devices with different speech processing formats

#234
20050267746
2005-12-01

Method for interoperation between adaptive multi-rate wideband (AMR-WB) and multi-mode variable bit-rate wideband (VMR-WB) codecs

#235
20050258983
2005-11-24

Method and apparatus for voice trans-rating in multi-rate voice coders for telecommunications

#236
20050240400
2005-10-27

Method and apparatus for transcoding between different speech encoding/decoding systems using gain calculations

#237
20050240398
2005-10-27

Techniques for quantization of spectral data in transcoding

#238
20050219073
2005-10-06

Method and device for code conversion between audio encoding/decoding methods and storage medium thereof

#239
20050207502
2005-09-22

Transcoder and code conversion method

#240
20050197108
2005-09-08

Mobile transcoding architecture

#241
20050180586
2005-08-18

Method, medium, and apparatus for converting audio data

#242
20050159943
2005-07-21

Compressed domain universal transcoder

#243
20050137864
2005-06-23

Audio enhancement in coded domain

#244
20050131682
2005-06-16

Method and apparatus for transcoding between different speech encoding/decoding systems

#245
20050102137
2005-05-12

Compressed domain conference bridge

#246
20050091047
2005-04-28

Method and apparatus for network communication

#247
20050086053
2005-04-21

Detector for use in voice communications systems

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