WO2010003253A8 - Variable bit rate lpc filter quantizing and inverse quantizing device and method - Google Patents

Variable bit rate lpc filter quantizing and inverse quantizing device and method Download PDF

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Publication number
WO2010003253A8
WO2010003253A8 PCT/CA2009/000980 CA2009000980W WO2010003253A8 WO 2010003253 A8 WO2010003253 A8 WO 2010003253A8 CA 2009000980 W CA2009000980 W CA 2009000980W WO 2010003253 A8 WO2010003253 A8 WO 2010003253A8
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WO
WIPO (PCT)
Prior art keywords
vector
quantizing
lpc filter
inverse
residual
Prior art date
Application number
PCT/CA2009/000980
Other languages
French (fr)
Other versions
WO2010003253A1 (en
Inventor
Bruno Bessette
Philippe Gournay
Redwan Salami
Original Assignee
Voiceage Corporation
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 Voiceage Corporation filed Critical Voiceage Corporation
Priority to CA2729665A priority Critical patent/CA2729665C/en
Priority to ES09793769.2T priority patent/ES2645375T3/en
Priority to NO09793769A priority patent/NO2313887T3/no
Priority to DK09793769.2T priority patent/DK2313887T3/en
Priority to EP09793769.2A priority patent/EP2313887B1/en
Priority to PL09793769T priority patent/PL2313887T3/en
Publication of WO2010003253A1 publication Critical patent/WO2010003253A1/en
Publication of WO2010003253A8 publication Critical patent/WO2010003253A8/en
Priority to CY20171101113T priority patent/CY1119494T1/en

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • 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
    • H03M7/3082—Vector coding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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

Abstract

A device and a method for quantizing a LPC filter in the form of an input vector in a quantization domain, comprises a calculator of a first-stage approximation of the input vector, a subtractor of the first-stage approximation from the input vector to produce a residual vector, a calculator of a weighting function from the first-stage approximation, a warper of the residual vector with the weighting function, and a quantizer of the weighted residual vector to supply a quantized weighted residual vector. A device and a method for inverse quantizing of a LPC filter, comprises means for receiving coded indices representative of a first-stage approximation of a vector representative of the LPC filter in a quantization domain and of a quantized weighted residual version of the vector, a calculator of an inverse weighting function from the first-stage approximation, an inverse quantizer of the quantized weighted residual version of the vector to produce a weighted residual vector, a multiplier of the weighted residual vector by the inverse weighting function to produce a residual vector, and an adder of the first-stage approximation with the residual vector to produce the vector representative of the LPC filter in the quantization domain.
PCT/CA2009/000980 2008-07-10 2009-07-10 Variable bit rate lpc filter quantizing and inverse quantizing device and method WO2010003253A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA2729665A CA2729665C (en) 2008-07-10 2009-07-10 Variable bit rate lpc filter quantizing and inverse quantizing device and method
ES09793769.2T ES2645375T3 (en) 2008-07-10 2009-07-10 Device and method of quantification and inverse quantification of variable bit rate LPC filter
NO09793769A NO2313887T3 (en) 2008-07-10 2009-07-10
DK09793769.2T DK2313887T3 (en) 2008-07-10 2009-07-10 VARIABLE BITRATE LPC FILTER QUANTIZATION AND INVERSE QUANTIZATION DEVICE AND PROCEDURE
EP09793769.2A EP2313887B1 (en) 2008-07-10 2009-07-10 Variable bit rate lpc filter quantizing and inverse quantizing device and method
PL09793769T PL2313887T3 (en) 2008-07-10 2009-07-10 Variable bit rate lpc filter quantizing and inverse quantizing device and method
CY20171101113T CY1119494T1 (en) 2008-07-10 2017-10-26 VARIABLE BINDING QUANTITY FOR LPC FILTER AND REVERSE QUANTIZATION METHOD

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12966908P 2008-07-10 2008-07-10
US61/129,669 2008-07-10
US20207509P 2009-01-27 2009-01-27
US61/202,075 2009-01-27

Publications (2)

Publication Number Publication Date
WO2010003253A1 WO2010003253A1 (en) 2010-01-14
WO2010003253A8 true WO2010003253A8 (en) 2010-04-01

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PCT/CA2009/000980 WO2010003253A1 (en) 2008-07-10 2009-07-10 Variable bit rate lpc filter quantizing and inverse quantizing device and method
PCT/CA2009/000981 WO2010003254A1 (en) 2008-07-10 2009-07-10 Multi-reference lpc filter quantization and inverse quantization device and method
PCT/CA2009/000979 WO2010003252A1 (en) 2008-07-10 2009-07-10 Device and method for quantizing and inverse quantizing lpc filters in a super-frame

Family Applications After (2)

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PCT/CA2009/000981 WO2010003254A1 (en) 2008-07-10 2009-07-10 Multi-reference lpc filter quantization and inverse quantization device and method
PCT/CA2009/000979 WO2010003252A1 (en) 2008-07-10 2009-07-10 Device and method for quantizing and inverse quantizing lpc filters in a super-frame

Country Status (17)

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US (4) US8712764B2 (en)
EP (3) EP2301021B1 (en)
JP (2) JP5710476B2 (en)
KR (2) KR101592968B1 (en)
CN (2) CN102089810B (en)
BR (1) BRPI0915450B1 (en)
CA (5) CA2729665C (en)
CY (3) CY1119501T1 (en)
DK (3) DK2313887T3 (en)
ES (3) ES2639747T3 (en)
HK (2) HK1153840A1 (en)
MX (1) MX2011000363A (en)
NO (1) NO2313887T3 (en)
PL (1) PL2313887T3 (en)
PT (3) PT2301021T (en)
RU (2) RU2011104813A (en)
WO (3) WO2010003253A1 (en)

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CA2729752A1 (en) 2010-01-14
HK1153840A1 (en) 2012-04-05
BRPI0915450B1 (en) 2020-03-10
CN102119414A (en) 2011-07-06
CA2972812C (en) 2018-07-24
CY1119659T1 (en) 2018-04-04
KR101592968B1 (en) 2016-02-11
US20100023325A1 (en) 2010-01-28
ES2639747T3 (en) 2017-10-30
WO2010003253A1 (en) 2010-01-14
MX2011000363A (en) 2011-06-16
US8332213B2 (en) 2012-12-11
CA2729665E (en) 2010-01-14
CA2729751A1 (en) 2010-01-14
EP2301021B1 (en) 2017-06-21
WO2010003252A1 (en) 2010-01-14
JP2011527442A (en) 2011-10-27
EP2313887B1 (en) 2017-09-13
CY1119501T1 (en) 2018-03-07
ES2645375T3 (en) 2017-12-05
PT2301022T (en) 2017-12-12
DK2301022T3 (en) 2017-12-04
PL2313887T3 (en) 2018-01-31
CA2972812A1 (en) 2010-01-14
USRE49363E1 (en) 2023-01-10
CA2972808A1 (en) 2010-01-14
ES2650492T3 (en) 2018-01-18
NO2313887T3 (en) 2018-02-10
CN102119414B (en) 2013-04-24
EP2313887A4 (en) 2013-11-27
KR20110042303A (en) 2011-04-26
PT2301021T (en) 2017-09-22
JP5710476B2 (en) 2015-04-30
DK2301021T3 (en) 2017-09-18
CA2972808C (en) 2018-12-18
CA2729665A1 (en) 2010-01-14
CN102089810B (en) 2013-05-08
EP2313887A1 (en) 2011-04-27
EP2301022B1 (en) 2017-09-06
CN102089810A (en) 2011-06-08
US20100023324A1 (en) 2010-01-28
EP2301022A1 (en) 2011-03-30
HK1154109A1 (en) 2012-04-13
CY1119494T1 (en) 2018-03-07
KR20110044222A (en) 2011-04-28
RU2011104813A (en) 2012-08-20
DK2313887T3 (en) 2017-11-13
CA2729751C (en) 2017-10-24
US8712764B2 (en) 2014-04-29
CA2729665C (en) 2016-11-22
CA2729752C (en) 2018-06-05
BRPI0915450A2 (en) 2017-06-27
US9245532B2 (en) 2016-01-26
JP2011527441A (en) 2011-10-27
EP2301021A4 (en) 2012-08-15
EP2301021A1 (en) 2011-03-30
PT2313887T (en) 2017-11-14
RU2011104784A (en) 2012-08-20
RU2509379C2 (en) 2014-03-10
EP2301022A4 (en) 2012-08-15
KR101604774B1 (en) 2016-03-18
US20100023323A1 (en) 2010-01-28
WO2010003254A1 (en) 2010-01-14

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