SG11201907670UA - Inter-channel bandwidth extension - Google Patents

Inter-channel bandwidth extension

Info

Publication number
SG11201907670UA
SG11201907670UA SG11201907670UA SG11201907670UA SG 11201907670U A SG11201907670U A SG 11201907670UA SG 11201907670U A SG11201907670U A SG 11201907670UA SG 11201907670U A SG11201907670U A SG 11201907670UA
Authority
SG
Singapore
Prior art keywords
channel
bitstream
band
band mid
international
Prior art date
Application number
Other languages
English (en)
Inventor
Venkata Subrahmanyam Chandra Sekhar Chebiyyam
Venkatraman Atti
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of SG11201907670UA publication Critical patent/SG11201907670UA/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—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
    • G10L19/04—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/13—Aspects of volume control, not necessarily automatic, in stereophonic sound systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Stereophonic System (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
SG11201907670U 2017-04-05 2018-03-27 Inter-channel bandwidth extension SG11201907670UA (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762482150P 2017-04-05 2017-04-05
US15/935,952 US10573326B2 (en) 2017-04-05 2018-03-26 Inter-channel bandwidth extension
PCT/US2018/024500 WO2018187082A1 (en) 2017-04-05 2018-03-27 Inter-channel bandwidth extension

Publications (1)

Publication Number Publication Date
SG11201907670UA true SG11201907670UA (en) 2019-10-30

Family

ID=63711139

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201907670U SG11201907670UA (en) 2017-04-05 2018-03-27 Inter-channel bandwidth extension

Country Status (8)

Country Link
US (1) US10573326B2 (ko)
EP (1) EP3607549B1 (ko)
KR (1) KR102208602B1 (ko)
CN (1) CN110447072B (ko)
BR (1) BR112019020643A2 (ko)
SG (1) SG11201907670UA (ko)
TW (1) TWI724290B (ko)
WO (1) WO2018187082A1 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10535357B2 (en) 2017-10-05 2020-01-14 Qualcomm Incorporated Encoding or decoding of audio signals
WO2020216459A1 (en) * 2019-04-23 2020-10-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method or computer program for generating an output downmix representation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
CA2327041A1 (en) * 2000-11-22 2002-05-22 Voiceage Corporation A method for indexing pulse positions and signs in algebraic codebooks for efficient coding of wideband signals
US8605911B2 (en) * 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US8260609B2 (en) * 2006-07-31 2012-09-04 Qualcomm Incorporated Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
US8015368B2 (en) * 2007-04-20 2011-09-06 Siport, Inc. Processor extensions for accelerating spectral band replication
EP2077551B1 (en) * 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
US8060042B2 (en) * 2008-05-23 2011-11-15 Lg Electronics Inc. Method and an apparatus for processing an audio signal
US8355921B2 (en) * 2008-06-13 2013-01-15 Nokia Corporation Method, apparatus and computer program product for providing improved audio processing
PT2146344T (pt) * 2008-07-17 2016-10-13 Fraunhofer Ges Forschung Esquema de codificação/descodificação de áudio com uma derivação comutável
BR122019023704B1 (pt) * 2009-01-16 2020-05-05 Dolby Int Ab sistema para gerar um componente de frequência alta de um sinal de áudio e método para realizar reconstrução de frequência alta de um componente de frequência alta
RU2493618C2 (ru) 2009-01-28 2013-09-20 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование
US9070361B2 (en) * 2011-06-10 2015-06-30 Google Technology Holdings LLC Method and apparatus for encoding a wideband speech signal utilizing downmixing of a highband component
WO2014005327A1 (zh) * 2012-07-06 2014-01-09 深圳广晟信源技术有限公司 对多声道数字音频编码的方法
EP2830052A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension
US9984699B2 (en) * 2014-06-26 2018-05-29 Qualcomm Incorporated High-band signal coding using mismatched frequency ranges
EP3067887A1 (en) * 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal
TW202242853A (zh) * 2015-03-13 2022-11-01 瑞典商杜比國際公司 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流
US10109284B2 (en) * 2016-02-12 2018-10-23 Qualcomm Incorporated Inter-channel encoding and decoding of multiple high-band audio signals
US10157621B2 (en) 2016-03-18 2018-12-18 Qualcomm Incorporated Audio signal decoding
US10249307B2 (en) 2016-06-27 2019-04-02 Qualcomm Incorporated Audio decoding using intermediate sampling rate
US10431231B2 (en) * 2017-06-29 2019-10-01 Qualcomm Incorporated High-band residual prediction with time-domain inter-channel bandwidth extension

Also Published As

Publication number Publication date
BR112019020643A2 (pt) 2020-04-28
EP3607549B1 (en) 2022-09-28
KR20190134641A (ko) 2019-12-04
CN110447072A (zh) 2019-11-12
US20180293992A1 (en) 2018-10-11
KR102208602B1 (ko) 2021-01-27
WO2018187082A1 (en) 2018-10-11
EP3607549A1 (en) 2020-02-12
TW201903754A (zh) 2019-01-16
US10573326B2 (en) 2020-02-25
CN110447072B (zh) 2020-11-06
TWI724290B (zh) 2021-04-11

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