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MX2017001245A - Metodo y aparato para procesar una senal de audio, decodificador de audio y codificador de audio. - Google Patents

Metodo y aparato para procesar una senal de audio, decodificador de audio y codificador de audio.

Info

Publication number
MX2017001245A
MX2017001245A MX2017001245A MX2017001245A MX2017001245A MX 2017001245 A MX2017001245 A MX 2017001245A MX 2017001245 A MX2017001245 A MX 2017001245A MX 2017001245 A MX2017001245 A MX 2017001245A MX 2017001245 A MX2017001245 A MX 2017001245A
Authority
MX
Mexico
Prior art keywords
audio
precessing
audio signal
encoder
decoder
Prior art date
Application number
MX2017001245A
Other languages
English (en)
Other versions
MX362737B (es
Inventor
Gayer Marc
Dietz Martin
Pietrzyk Grzegorz
Jander Manuel
Ravelli Emmanuel
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 MX2017001245A publication Critical patent/MX2017001245A/es
Publication of MX362737B publication Critical patent/MX362737B/es

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
    • G10L19/04—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
    • G10L19/02—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
    • G10L19/04—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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • 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
    • 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
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L19/04—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/038—Cross-faders therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Se describe un metodo que procesa una senal de audio (100). Una discontinuidad entre un cuadro anterior filtrado y un cuadro actual filtrado de la senal de audio se elimina usando un filtrado predictivo lineal (102, 110, 112).
MX2017001245A 2014-07-28 2015-07-03 Método y aparato para procesar una señal de audio, decodificador de audio y codificador de audio. MX362737B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14178821.6A EP2980796A1 (en) 2014-07-28 2014-07-28 Method and apparatus for processing an audio signal, audio decoder, and audio encoder
PCT/EP2015/065219 WO2016015950A1 (en) 2014-07-28 2015-07-03 Method and apparatus for precessing an audio signal, audio decoder, and audio encoder

Publications (2)

Publication Number Publication Date
MX2017001245A true MX2017001245A (es) 2017-07-07
MX362737B MX362737B (es) 2019-02-06

Family

ID=51224879

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017001245A MX362737B (es) 2014-07-28 2015-07-03 Método y aparato para procesar una señal de audio, decodificador de audio y codificador de audio.

Country Status (17)

Country Link
US (6) US20170133028A1 (es)
EP (7) EP2980796A1 (es)
JP (6) JP6503051B2 (es)
KR (6) KR20250008957A (es)
CN (2) CN106575507B (es)
AR (1) AR101287A1 (es)
AU (1) AU2015295709B2 (es)
CA (6) CA3193302A1 (es)
ES (6) ES2773690T3 (es)
MX (1) MX362737B (es)
MY (1) MY179016A (es)
PL (5) PL4030426T3 (es)
PT (3) PT3175452T (es)
RU (1) RU2665282C1 (es)
SG (1) SG11201700684YA (es)
TW (1) TWI595480B (es)
WO (1) WO2016015950A1 (es)

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US12033648B2 (en) 2024-07-09
CA3193316A1 (en) 2016-02-04
EP4235667C0 (en) 2024-09-04
JP7736866B2 (ja) 2025-09-09
EP2980796A1 (en) 2016-02-03
US20250078850A1 (en) 2025-03-06
CA2955674A1 (en) 2016-02-04
ES2773690T3 (es) 2020-07-14
ES3052673T3 (en) 2026-01-12
ES2994941T3 (en) 2025-02-04
JP2023036651A (ja) 2023-03-14
KR20220150992A (ko) 2022-11-11
US12165665B2 (en) 2024-12-10
ES2914632T3 (es) 2022-06-14
HK1259289A1 (en) 2019-11-29
JP2025186274A (ja) 2025-12-23
JP6503051B2 (ja) 2019-04-17
EP4447048A3 (en) 2024-10-23
CA2955674C (en) 2023-08-15
JP2024138295A (ja) 2024-10-08
JP7202545B2 (ja) 2023-01-12
JP7509859B2 (ja) 2024-07-02
PT3175452T (pt) 2018-10-22
EP3407351B1 (en) 2020-01-01
EP4235667A3 (en) 2023-09-13
US20230335147A1 (en) 2023-10-19
US12014746B2 (en) 2024-06-18
EP4030426C0 (en) 2023-08-16
EP3654333A1 (en) 2020-05-20
ES2685984T3 (es) 2018-10-15
RU2665282C1 (ru) 2018-08-28
US20220148609A1 (en) 2022-05-12
CA3193306A1 (en) 2016-02-04
EP3654333B1 (en) 2022-03-09
JP6864382B2 (ja) 2021-04-28
MX362737B (es) 2019-02-06
KR102304326B1 (ko) 2021-09-23
EP4235667A2 (en) 2023-08-30
PL3654333T3 (pl) 2022-07-04
TWI595480B (zh) 2017-08-11
CA3193302A1 (en) 2016-02-04
ES2960422T3 (es) 2024-03-04
KR102748357B1 (ko) 2024-12-31
AU2015295709B2 (en) 2017-12-21
JP2017522606A (ja) 2017-08-10
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PL3407351T3 (pl) 2020-06-29
PL4030426T3 (pl) 2024-02-12
KR20190080982A (ko) 2019-07-08
KR20170036084A (ko) 2017-03-31
PL3175452T3 (pl) 2019-01-31
TW201606754A (zh) 2016-02-16
WO2016015950A1 (en) 2016-02-04
BR112017001362A2 (pt) 2017-11-21
CA3193319A1 (en) 2016-02-04
CN113012704B (zh) 2024-02-09
EP4447048C0 (en) 2025-10-01
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KR20230173744A (ko) 2023-12-27
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EP4030426B1 (en) 2023-08-16
MY179016A (en) 2020-10-26
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JP2019164348A (ja) 2019-09-26
PT3407351T (pt) 2020-03-31
KR20210118224A (ko) 2021-09-29
JP2021107932A (ja) 2021-07-29
US20220157328A1 (en) 2022-05-19
KR102459857B1 (ko) 2022-10-27
PL4235667T3 (pl) 2025-01-20
KR102615475B1 (ko) 2023-12-19
EP3407351A1 (en) 2018-11-28
US20170133028A1 (en) 2017-05-11
US20240135943A1 (en) 2024-04-25
EP3175452B1 (en) 2018-07-11
AR101287A1 (es) 2016-12-07
SG11201700684YA (en) 2017-02-27
KR101997006B1 (ko) 2019-07-08
US11869525B2 (en) 2024-01-09
AU2015295709A1 (en) 2017-03-16
CN113012704A (zh) 2021-06-22
PT3654333T (pt) 2022-05-19

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