PT3025339T - Codificação de áudio do domínio da frequência que suporta a comutação do comprimento da transformada - Google Patents

Codificação de áudio do domínio da frequência que suporta a comutação do comprimento da transformada

Info

Publication number
PT3025339T
PT3025339T PT147388656T PT14738865T PT3025339T PT 3025339 T PT3025339 T PT 3025339T PT 147388656 T PT147388656 T PT 147388656T PT 14738865 T PT14738865 T PT 14738865T PT 3025339 T PT3025339 T PT 3025339T
Authority
PT
Portugal
Prior art keywords
frequency
audio coding
domain audio
transform length
length switching
Prior art date
Application number
PT147388656T
Other languages
English (en)
Inventor
Helmrich Christian
Hölzer Andreas
Dick Sascha
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
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of PT3025339T publication Critical patent/PT3025339T/pt

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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • 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
    • G10L19/02—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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mathematical Physics (AREA)
PT147388656T 2013-07-22 2014-07-15 Codificação de áudio do domínio da frequência que suporta a comutação do comprimento da transformada PT3025339T (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13177373 2013-07-22
EP13189334.9A EP2830058A1 (en) 2013-07-22 2013-10-18 Frequency-domain audio coding supporting transform length switching

Publications (1)

Publication Number Publication Date
PT3025339T true PT3025339T (pt) 2017-12-20

Family

ID=48808222

Family Applications (3)

Application Number Title Priority Date Filing Date
PT212032080T PT3961621T (pt) 2013-07-22 2014-07-15 Codificação de áudio do domínio de frequência suportando comutação do comprimento de transformada
PT171894181T PT3312836T (pt) 2013-07-22 2014-07-15 Codificação de áudio do domínio de frequência suportando comutação do comprimento de transformada
PT147388656T PT3025339T (pt) 2013-07-22 2014-07-15 Codificação de áudio do domínio da frequência que suporta a comutação do comprimento da transformada

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PT212032080T PT3961621T (pt) 2013-07-22 2014-07-15 Codificação de áudio do domínio de frequência suportando comutação do comprimento de transformada
PT171894181T PT3312836T (pt) 2013-07-22 2014-07-15 Codificação de áudio do domínio de frequência suportando comutação do comprimento de transformada

Country Status (20)

Country Link
US (4) US10242682B2 (pt)
EP (6) EP2830058A1 (pt)
JP (5) JP6247759B2 (pt)
KR (1) KR101819401B1 (pt)
CN (2) CN105593934B (pt)
AR (1) AR097005A1 (pt)
AU (1) AU2014295313B2 (pt)
CA (1) CA2918849C (pt)
ES (3) ES2940897T3 (pt)
FI (1) FI3961621T3 (pt)
HK (1) HK1254315A1 (pt)
MX (1) MX357694B (pt)
MY (1) MY184665A (pt)
PL (3) PL3312836T3 (pt)
PT (3) PT3961621T (pt)
RU (1) RU2654139C2 (pt)
SG (1) SG11201600369UA (pt)
TW (1) TWI559294B (pt)
WO (1) WO2015010965A1 (pt)
ZA (1) ZA201601115B (pt)

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Also Published As

Publication number Publication date
RU2016105704A (ru) 2017-08-23
HK1254315A1 (zh) 2019-07-19
CA2918849A1 (en) 2015-01-29
AU2014295313B2 (en) 2017-08-03
ZA201601115B (en) 2017-11-29
US20190189138A1 (en) 2019-06-20
JP7311940B2 (ja) 2023-07-20
JP6560320B2 (ja) 2019-08-14
US20210233545A1 (en) 2021-07-29
JP2018055117A (ja) 2018-04-05
MX2016000913A (es) 2016-06-21
AU2014295313A1 (en) 2016-03-10
EP3961621B1 (en) 2023-01-04
EP4191581B1 (en) 2024-03-27
EP3961621A1 (en) 2022-03-02
CN105593934A (zh) 2016-05-18
PT3961621T (pt) 2023-03-31
CN105593934B (zh) 2019-11-12
CN110739001B (zh) 2024-02-27
CN110739001A (zh) 2020-01-31
EP2830058A1 (en) 2015-01-28
US20240127836A1 (en) 2024-04-18
KR101819401B1 (ko) 2018-01-16
KR20160033755A (ko) 2016-03-28
TWI559294B (zh) 2016-11-21
JP2016532894A (ja) 2016-10-20
US10984809B2 (en) 2021-04-20
EP4191581C0 (en) 2024-03-27
JP2021170127A (ja) 2021-10-28
PL3312836T3 (pl) 2022-03-28
EP3025339A1 (en) 2016-06-01
SG11201600369UA (en) 2016-02-26
MY184665A (en) 2021-04-15
MX357694B (es) 2018-07-19
PL3961621T3 (pl) 2023-05-02
JP6247759B2 (ja) 2017-12-13
ES2902949T3 (es) 2022-03-30
RU2654139C2 (ru) 2018-05-16
ES2940897T3 (es) 2023-05-12
ES2650747T3 (es) 2018-01-22
PL3025339T3 (pl) 2018-02-28
AR097005A1 (es) 2016-02-10
EP3312836A1 (en) 2018-04-25
US11862182B2 (en) 2024-01-02
EP4369337A2 (en) 2024-05-15
CA2918849C (en) 2019-05-21
PT3312836T (pt) 2021-12-30
JP6911080B2 (ja) 2021-07-28
TW201519219A (zh) 2015-05-16
EP3025339B1 (en) 2017-09-13
EP4191581A1 (en) 2023-06-07
FI3961621T3 (fi) 2023-03-31
JP2023126886A (ja) 2023-09-12
WO2015010965A1 (en) 2015-01-29
EP3312836B1 (en) 2021-10-27
EP4369337A3 (en) 2024-06-26
US10242682B2 (en) 2019-03-26
US20160140972A1 (en) 2016-05-19
JP2019207419A (ja) 2019-12-05

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