HK1126567A1 - Coding of an information signal - Google Patents

Coding of an information signal

Info

Publication number
HK1126567A1
HK1126567A1 HK09104990.3A HK09104990A HK1126567A1 HK 1126567 A1 HK1126567 A1 HK 1126567A1 HK 09104990 A HK09104990 A HK 09104990A HK 1126567 A1 HK1126567 A1 HK 1126567A1
Authority
HK
Hong Kong
Prior art keywords
limits
frame
coding
information signal
frames
Prior art date
Application number
HK09104990.3A
Inventor
Markus Schnell
Michael Schuldt
Manfred Lutzky
Manuel Jander
Original Assignee
Fraunhofer Ges Forschung
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38657988&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1126567(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of HK1126567A1 publication Critical patent/HK1126567A1/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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The problem of transients can be addressed satisfactorily and a further decoding delay can be reduced for this if use is made of a new SBR frame class in which the frame limits (902a, 902b) are not shifted, that is to say the grid limits are still synchronized with the frame limits (902a, 902b), but in which a statement of the transient position (T) is also used as a syntax element in order to be used, within the frames of this new frame class, to determine the grid limits within these frames at the coder and/or decoder end.
HK09104990.3A 2006-10-18 2009-06-03 Coding of an information signal HK1126567A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006049154A DE102006049154B4 (en) 2006-10-18 2006-10-18 Coding of an information signal
PCT/EP2007/008527 WO2008046505A1 (en) 2006-10-18 2007-10-01 Coding of an information signal

Publications (1)

Publication Number Publication Date
HK1126567A1 true HK1126567A1 (en) 2009-09-04

Family

ID=38657988

Family Applications (1)

Application Number Title Priority Date Filing Date
HK09104990.3A HK1126567A1 (en) 2006-10-18 2009-06-03 Coding of an information signal

Country Status (20)

Country Link
EP (1) EP2057625B1 (en)
JP (1) JP5266234B2 (en)
KR (1) KR101183962B1 (en)
CN (1) CN101529503B (en)
AT (1) ATE507554T1 (en)
AU (1) AU2007312667B2 (en)
BR (1) BRPI0715555B1 (en)
CA (1) CA2664466C (en)
DE (2) DE102006049154B4 (en)
ES (1) ES2365433T3 (en)
HK (1) HK1126567A1 (en)
IL (1) IL197561A (en)
MX (1) MX2009004045A (en)
MY (1) MY147067A (en)
NO (1) NO341258B1 (en)
PL (1) PL2057625T3 (en)
RU (1) RU2413312C2 (en)
TW (1) TWI355648B (en)
WO (1) WO2008046505A1 (en)
ZA (1) ZA200810394B (en)

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JP5997592B2 (en) * 2012-04-27 2016-09-28 株式会社Ｎｔｔドコモ Speech decoder
BR122021009022B1 (en) 2013-04-05 2022-08-16 Dolby International Ab DECODING METHOD TO DECODE TWO AUDIO SIGNALS, COMPUTER READY MEDIA, AND DECODER TO DECODE TWO AUDIO SIGNALS
KR101789083B1 (en) 2013-06-10 2017-10-23 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. Apparatus and method for audio signal envelope encoding, processing and decoding by modelling a cumulative sum representation employing distribution quantization and coding
SG11201510164RA (en) * 2013-06-10 2016-01-28 Fraunhofer Ges Forschung Apparatus and method for audio signal envelope encoding, processing and decoding by splitting the audio signal envelope employing distribution quantization and coding
WO2017050398A1 (en) * 2015-09-25 2017-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding
ES2727462T3 (en) 2016-01-22 2019-10-16 Fraunhofer Ges Forschung Apparatus and procedures for encoding or decoding a multichannel audio signal by using repeated spectral domain sampling
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
EP3483880A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
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Also Published As

Publication number Publication date
MX2009004045A (en) 2009-05-28
CA2664466A1 (en) 2008-04-24
TWI355648B (en) 2012-01-01
ZA200810394B (en) 2009-08-26
BRPI0715555A8 (en) 2019-01-15
MY147067A (en) 2012-10-15
CN101529503B (en) 2012-05-09
DE102006049154A1 (en) 2008-04-24
BRPI0715555B1 (en) 2020-09-15
PL2057625T3 (en) 2011-09-30
BRPI0715555A2 (en) 2014-03-18
CA2664466C (en) 2015-03-17
NO20083755L (en) 2008-09-01
AU2007312667A1 (en) 2008-04-24
JP2010507113A (en) 2010-03-04
IL197561A (en) 2013-02-28
ATE507554T1 (en) 2011-05-15
CN101529503A (en) 2009-09-09
TW200830277A (en) 2008-07-16
WO2008046505A1 (en) 2008-04-24
RU2009118384A (en) 2010-11-27
EP2057625B1 (en) 2011-04-27
NO341258B1 (en) 2017-09-25
JP5266234B2 (en) 2013-08-21
IL197561A0 (en) 2009-12-24
DE102006049154B4 (en) 2009-07-09
KR101183962B1 (en) 2012-09-18
AU2007312667B2 (en) 2010-09-09
ES2365433T3 (en) 2011-10-05
KR20090073172A (en) 2009-07-02
DE502007007077D1 (en) 2011-06-09
EP2057625A1 (en) 2009-05-13
RU2413312C2 (en) 2011-02-27

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