EP4239635A3 - Audio encoding device and method - Google Patents

Audio encoding device and method Download PDF

Info

Publication number
EP4239635A3
EP4239635A3 EP23187229.2A EP23187229A EP4239635A3 EP 4239635 A3 EP4239635 A3 EP 4239635A3 EP 23187229 A EP23187229 A EP 23187229A EP 4239635 A3 EP4239635 A3 EP 4239635A3
Authority
EP
European Patent Office
Prior art keywords
encoding
auxiliary information
audio
audio signal
encoding device
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23187229.2A
Other languages
German (de)
French (fr)
Other versions
EP4239635A2 (en
Inventor
Kimitaka Tsutsumi
Kei Kikuiri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo 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
Priority claimed from JP2011033195A external-priority patent/JP5662827B2/en
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority claimed from EP15184203.6A external-priority patent/EP2975610B1/en
Publication of EP4239635A2 publication Critical patent/EP4239635A2/en
Publication of EP4239635A3 publication Critical patent/EP4239635A3/en
Pending legal-status Critical Current

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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

An audio encoding device for encoding an audio signal consisting of a plurality of frames, the audio encoding device comprising: an audio encoding unit for encoding the audio signal; and an auxiliary information encoding unit for estimating and encoding auxiliary information about a temporal change of power of the audio signal, the auxiliary information being used in packet loss concealment in decoding of the audio signal, wherein the auxiliary information encoding unit estimates and encodes quantized transient power and a flag of sudden change of power, as the auxiliary information.
EP23187229.2A 2010-11-22 2011-11-04 Audio encoding device and method Pending EP4239635A3 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2010260447 2010-11-22
JP2011033195A JP5662827B2 (en) 2011-02-18 2011-02-18 Seasoning and method for producing the same
JP2011033915 2011-02-18
EP15184203.6A EP2975610B1 (en) 2010-11-22 2011-11-04 Audio encoding device and method
EP19161209.2A EP3518234B1 (en) 2010-11-22 2011-11-04 Audio encoding device and method
EP11842953.9A EP2645366A4 (en) 2010-11-22 2011-11-04 Audio encoding device, method and program, and audio decoding device, method and program
PCT/JP2011/075489 WO2012070370A1 (en) 2010-11-22 2011-11-04 Audio encoding device, method and program, and audio decoding device, method and program

Related Parent Applications (4)

Application Number Title Priority Date Filing Date
EP15184203.6A Division EP2975610B1 (en) 2010-11-22 2011-11-04 Audio encoding device and method
EP11842953.9A Division EP2645366A4 (en) 2010-11-22 2011-11-04 Audio encoding device, method and program, and audio decoding device, method and program
EP19161209.2A Division EP3518234B1 (en) 2010-11-22 2011-11-04 Audio encoding device and method
EP19161209.2A Division-Into EP3518234B1 (en) 2010-11-22 2011-11-04 Audio encoding device and method

Publications (2)

Publication Number Publication Date
EP4239635A2 EP4239635A2 (en) 2023-09-06
EP4239635A3 true EP4239635A3 (en) 2023-11-15

Family

ID=87517085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23187229.2A Pending EP4239635A3 (en) 2010-11-22 2011-11-04 Audio encoding device and method

Country Status (2)

Country Link
EP (1) EP4239635A3 (en)
DK (1) DK3518234T3 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050154584A1 (en) * 2002-05-31 2005-07-14 Milan Jelinek Method and device for efficient frame erasure concealment in linear predictive based speech codecs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4022427B2 (en) 2002-04-19 2007-12-19 独立行政法人科学技術振興機構 Error concealment method, error concealment program, transmission device, reception device, and error concealment device
US8150684B2 (en) 2005-06-29 2012-04-03 Panasonic Corporation Scalable decoder preventing signal degradation and lost data interpolation method
JP5123516B2 (en) 2006-10-30 2013-01-23 株式会社エヌ・ティ・ティ・ドコモ Decoding device, encoding device, decoding method, and encoding method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050154584A1 (en) * 2002-05-31 2005-07-14 Milan Jelinek Method and device for efficient frame erasure concealment in linear predictive based speech codecs

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"G.729-based embedded variable bit-rate coder: An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729; G.729.1 (05/06)", ITU-T STANDARD, INTERNATIONAL TELECOMMUNICATION UNION, GENEVA ; CH, no. G.729.1 (05/06), 29 May 2006 (2006-05-29), pages 1 - 100, XP017466254 *
BERND GEISER ET AL: "Candidate proposal for ITU-T super-wideband speech and audio coding", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2009. ICASSP 2009. IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 19 April 2009 (2009-04-19), pages 4121 - 4124, XP031460181, ISBN: 978-1-4244-2353-8 *
GEISER BERND ET AL: "Joint pre-echo control and frame erasure concealment for VoIP audio codecs", 2009 17TH EUROPEAN SIGNAL PROCESSING CONFERENCE, IEEE, 24 August 2009 (2009-08-24), pages 1259 - 1263, XP032758754, ISBN: 978-1-61738-876-7, [retrieved on 20150401] *
KOMAKI N ET AL: "A PACKET LOSS CONCEALMENT TECHNIQUE FOR VOIP USING STEGANOGRAPHY", IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS,COMMUNICATIONS AND COMPUTER SCIENCES, ENGINEERING SCIENCES SOCIETY, TOKYO, JP, vol. E86-A, no. 8, 1 August 2003 (2003-08-01), pages 2069 - 2072, XP001177867, ISSN: 0916-8508 *
MOHAMED CHIBANI ET AL: "Fast Recovery for a CELP-Like Speech Codec After a Frame Erasure", IEEE TRANSACTIONS ON AUDIO, SPEECH AND LANGUAGE PROCESSING, IEEE SERVICE CENTER, NEW YORK, NY, USA, vol. 15, no. 8, 15 October 2007 (2007-10-15), pages 2485 - 2495, XP011192967, ISSN: 1558-7916, DOI: 10.1109/TASL.2007.907332 *

Also Published As

Publication number Publication date
DK3518234T3 (en) 2024-01-02
EP4239635A2 (en) 2023-09-06

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