UA117395C2 - Спосіб і пристрій для обробки сигналів - Google Patents

Спосіб і пристрій для обробки сигналів

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Publication number
UA117395C2
UA117395C2 UAA201608914A UAA201608914A UA117395C2 UA 117395 C2 UA117395 C2 UA 117395C2 UA A201608914 A UAA201608914 A UA A201608914A UA A201608914 A UAA201608914 A UA A201608914A UA 117395 C2 UA117395 C2 UA 117395C2
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Ukraine
Prior art keywords
sub
bands
envelope values
processing method
signal processing
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UAA201608914A
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English (en)
Inventor
Бінь Ван
Лей Мяо
Цзесінь Лю
Original Assignee
Хуавей Текнолоджиз Ко., Лтд.
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Application filed by Хуавей Текнолоджиз Ко., Лтд. filed Critical Хуавей Текнолоджиз Ко., Лтд.
Publication of UA117395C2 publication Critical patent/UA117395C2/uk

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    • 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
    • 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
    • G10L19/008—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
    • 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
    • G10L19/04—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
    • 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
    • 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
    • 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
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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

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

Abstract

Варіанти здійснення даного винаходу забезпечують спосіб обробки сигналів і пристрій. Спосіб включає в себе: вибір М піддіапазонів з N піддіапазонів, причому N піддіапазонів виходять шляхом розподілу спектрального коефіцієнта поточного кадру сигналу, і діапазон частот М піддіапазонів менший, ніж діапазон частот K піддіапазонів в N піддіапазонах за винятком згаданих М піддіапазонів; визначення, згідно з інформацією про робочі характеристики М піддіапазонів, що потрібно виконувати операцію модифікації над початковими значеннями обвідної М піддіапазонів, причому інформація про робочі характеристики використовується для того, щоб показати енергетичну характеристику і спектральну характеристику, які мають М піддіапазони; виконання модифікації окремо для кожного початкового значення обвідної М піддіапазонів для того, щоб отримати модифіковані значення обвідної М піддіапазонів; і виконання першого виділення бітів в N піддіапазонах згідно з модифікованими значеннями обвідної М піддіапазонів і початковими значеннями обвідної K піддіапазонів. У варіантах здійснення даного винаходу виділення бітів краще задовольняє вимоги, які пред'являються до бітів кожного піддіапазону, і тому можна поліпшити робочі характеристики кодування і декодування сигналів.
UAA201608914A 2014-04-29 2014-12-01 Спосіб і пристрій для обробки сигналів UA117395C2 (uk)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410177234.3A CN105096957B (zh) 2014-04-29 2014-04-29 处理信号的方法及设备
PCT/CN2014/092695 WO2015165264A1 (zh) 2014-04-29 2014-12-01 处理信号的方法及设备

Publications (1)

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US (8) US9837088B2 (uk)
EP (3) EP4372738A3 (uk)
JP (4) JP6231699B2 (uk)
KR (4) KR101890346B1 (uk)
CN (2) CN106409303B (uk)
AU (2) AU2014392351B2 (uk)
BR (1) BR112016015855B1 (uk)
CA (1) CA2935084C (uk)
CL (1) CL2016002106A1 (uk)
ES (1) ES2755152T3 (uk)
HK (1) HK1212501A1 (uk)
IL (2) IL246427B (uk)
MX (2) MX358255B (uk)
NZ (1) NZ721875A (uk)
PL (1) PL3637417T3 (uk)
PT (1) PT3079150T (uk)
RU (3) RU2656812C2 (uk)
SG (2) SG11201605353YA (uk)
UA (1) UA117395C2 (uk)
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CN106409303B (zh) 2019-09-20
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IL248575A0 (en) 2016-12-29
IL246427B (en) 2019-03-31
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US9837088B2 (en) 2017-12-05
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AU2014392351B2 (en) 2017-09-14
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US10546591B2 (en) 2020-01-28
US11580996B2 (en) 2023-02-14
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WO2015165264A1 (zh) 2015-11-05
KR102052487B1 (ko) 2019-12-05
KR20180019761A (ko) 2018-02-26
KR101977383B1 (ko) 2019-05-10
AU2017272204B2 (en) 2019-09-12
US20190267015A1 (en) 2019-08-29
US10186271B2 (en) 2019-01-22
EP4372738A2 (en) 2024-05-22
EP3079150B1 (en) 2019-09-11
JP2018041091A (ja) 2018-03-15
CA2935084C (en) 2019-03-12
AU2017272204A1 (en) 2018-01-04
ZA201604465B (en) 2017-09-27
JP6517300B2 (ja) 2019-05-22
KR101890346B1 (ko) 2018-08-21
AU2014392351A1 (en) 2016-07-21

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