BR112014023577B8 - Método e dispositivo de codificação de sinal de áudio e método e dispositivo de decodificação de sinal de áudio. - Google Patents

Método e dispositivo de codificação de sinal de áudio e método e dispositivo de decodificação de sinal de áudio.

Info

Publication number
BR112014023577B8
BR112014023577B8 BR112014023577A BR112014023577A BR112014023577B8 BR 112014023577 B8 BR112014023577 B8 BR 112014023577B8 BR 112014023577 A BR112014023577 A BR 112014023577A BR 112014023577 A BR112014023577 A BR 112014023577A BR 112014023577 B8 BR112014023577 B8 BR 112014023577B8
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BR
Brazil
Prior art keywords
signal
audio signal
frequency domain
decoding method
encoding
Prior art date
Application number
BR112014023577A
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English (en)
Other versions
BR112014023577B1 (pt
BR112014023577A8 (pt
BR112014023577A2 (pt
Inventor
Fengyan Qi
Lei Miao
Zexin Liu
Original Assignee
Huawei Tech Co Ltd
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Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112014023577A2 publication Critical patent/BR112014023577A2/pt
Publication of BR112014023577A8 publication Critical patent/BR112014023577A8/pt
Publication of BR112014023577B1 publication Critical patent/BR112014023577B1/pt
Publication of BR112014023577B8 publication Critical patent/BR112014023577B8/pt

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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
    • G10L19/002—Dynamic bit allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • 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
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

métodos e dispositivos de codificação e decodificação de sinal. um método e dispositivo de codificação e decodificação de sinal que são fornecidos. o método para codificação de sinal compreende: de acordo com um sinal de entrada, obter (110) um sinal no domínio da frequência; de acordo com uma regra de alocação predefinida, alocar (120) um bit predefinido para o sinal no domínio da frequência; sob a condição de que a frequência máxima do sinal no domínio da frequência de alocação de bits é maior que um valor predefinido, ajustar (130) a alocação de bits do sinal no domínio da frequência; e de acordo com a alocação de bits do sinal no domínio da frequência, codificar (140) o sinal no domínio da frequência.
BR112014023577A 2012-03-29 2012-05-23 Método e dispositivo de codificação de sinal de áudio e método e dispositivo de decodificação de sinal de áudio. BR112014023577B8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201210087702.9A CN103368682B (zh) 2012-03-29 2012-03-29 信号编码和解码的方法和设备
CN201210087702.9 2012-03-29
PCT/CN2012/075924 WO2013143221A1 (zh) 2012-03-29 2012-05-23 信号编码和解码的方法和设备

Publications (4)

Publication Number Publication Date
BR112014023577A2 BR112014023577A2 (pt) 2017-06-20
BR112014023577A8 BR112014023577A8 (pt) 2021-05-25
BR112014023577B1 BR112014023577B1 (pt) 2021-08-24
BR112014023577B8 true BR112014023577B8 (pt) 2021-10-05

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Country Status (15)

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US (4) US9537694B2 (pt)
EP (3) EP2809009B1 (pt)
JP (2) JP6006400B2 (pt)
KR (1) KR101621641B1 (pt)
CN (3) CN106409299B (pt)
BR (1) BR112014023577B8 (pt)
CA (2) CA2866202C (pt)
ES (3) ES2770831T3 (pt)
MX (1) MX339652B (pt)
PL (1) PL3664085T3 (pt)
PT (1) PT3249645T (pt)
RU (1) RU2592412C2 (pt)
SG (2) SG10201701275XA (pt)
WO (1) WO2013143221A1 (pt)
ZA (1) ZA201406424B (pt)

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KR101621641B1 (ko) 2016-05-16
MX339652B (es) 2016-06-02
ES2655832T3 (es) 2018-02-21
CA2866202C (en) 2018-04-03
US9899033B2 (en) 2018-02-20
ZA201406424B (en) 2019-04-24
JP2015517119A (ja) 2015-06-18
BR112014023577B1 (pt) 2021-08-24
US20180130481A1 (en) 2018-05-10
EP3664085B1 (en) 2022-07-06
US20170076733A1 (en) 2017-03-16
EP2809009A1 (en) 2014-12-03
JP6323881B2 (ja) 2018-05-16
CN106409299B (zh) 2019-11-05
EP3249645A1 (en) 2017-11-29
CN110706715A (zh) 2020-01-17
PT3249645T (pt) 2020-02-05
ES2770831T3 (es) 2020-07-03
US10600430B2 (en) 2020-03-24
BR112014023577A8 (pt) 2021-05-25
US9786293B2 (en) 2017-10-10
CN103368682B (zh) 2016-12-07
CN103368682A (zh) 2013-10-23
SG11201405216SA (en) 2014-11-27
EP3664085A1 (en) 2020-06-10
CN110706715B (zh) 2022-05-24
RU2014142255A (ru) 2016-05-20
MX2014011605A (es) 2014-10-17
CA2994705C (en) 2020-06-30
JP6006400B2 (ja) 2016-10-12
CN106409299A (zh) 2017-02-15
SG10201701275XA (en) 2017-03-30
US20170352359A1 (en) 2017-12-07
CA2994705A1 (en) 2013-10-03
BR112014023577A2 (pt) 2017-06-20
JP2017016141A (ja) 2017-01-19
EP2809009A4 (en) 2015-07-15
EP3249645B1 (en) 2019-11-13
US9537694B2 (en) 2017-01-03
RU2592412C2 (ru) 2016-07-20
ES2927563T3 (es) 2022-11-08
US20150010021A1 (en) 2015-01-08
EP2809009B1 (en) 2017-11-29
KR20140130182A (ko) 2014-11-07
CA2866202A1 (en) 2013-10-03
PL3664085T3 (pl) 2022-11-14
WO2013143221A1 (zh) 2013-10-03

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