JPH11143498A - Ｌｐｃ係数のベクトル量子化方法 - Google Patents

Ｌｐｃ係数のベクトル量子化方法

Info

Publication number: JPH11143498A
Authority: JP; Japan
Prior art keywords: vector; lsf; codebook; lpc; quantization
Prior art date: 1997-08-28
Legal status (The legal status 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 status listed.): Pending

Application number

JP10242058A

Other languages

English (en)

Japanese (ja)

Inventor

Alan V Mccree

ブイ．マックリーアラン

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Texas Instruments Inc

Original Assignee

Texas Instruments Inc

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.)

1997-08-28

Filing date

1998-08-27

Publication date

1999-05-28

1998-08-27 Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc

1999-05-28 Publication of JPH11143498A publication Critical patent/JPH11143498A/ja

Status Pending legal-status Critical Current

Links

239000013598 vector Substances 0.000 title claims abstract description 128
238000013139 quantization Methods 0.000 title claims abstract description 58
238000000034 method Methods 0.000 title claims abstract description 27
239000011159 matrix material Substances 0.000 claims abstract description 56
230000004044 response Effects 0.000 claims abstract description 24
238000005311 autocorrelation function Methods 0.000 claims abstract description 9
238000001914 filtration Methods 0.000 claims description 2
238000001228 spectrum Methods 0.000 abstract description 4
230000002596 correlated effect Effects 0.000 abstract 1
230000003595 spectral effect Effects 0.000 description 10
230000015572 biosynthetic process Effects 0.000 description 8
238000003786 synthesis reaction Methods 0.000 description 8
238000006243 chemical reaction Methods 0.000 description 6
230000008569 process Effects 0.000 description 5
238000010586 diagram Methods 0.000 description 4
230000005284 excitation Effects 0.000 description 4
230000006870 function Effects 0.000 description 4
230000005540 biological transmission Effects 0.000 description 3
230000008901 benefit Effects 0.000 description 2
238000007796 conventional method Methods 0.000 description 2
238000005314 correlation function Methods 0.000 description 2
230000000737 periodic effect Effects 0.000 description 2
238000012545 processing Methods 0.000 description 2
230000005236 sound signal Effects 0.000 description 2
230000009466 transformation Effects 0.000 description 2
230000001131 transforming effect Effects 0.000 description 2
230000009471 action Effects 0.000 description 1
230000003044 adaptive effect Effects 0.000 description 1
230000004075 alteration Effects 0.000 description 1
230000003466 anti-cipated effect Effects 0.000 description 1
230000003111 delayed effect Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000010845 search algorithm Methods 0.000 description 1
238000006467 substitution reaction Methods 0.000 description 1
230000002123 temporal effect Effects 0.000 description 1

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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/038—Vector quantisation, e.g. TwinVQ audio
- 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
- G10L19/07—Line spectrum pair [LSP] 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
- G10L2019/0001—Codebooks
- G10L2019/0013—Codebook search algorithms
- G10L2019/0014—Selection criteria for distances

Landscapes

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

JP10242058A 1997-08-28 1998-08-27 Ｌｐｃ係数のベクトル量子化方法 Pending JPH11143498A (ja)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US5711497P	1997-08-28	1997-08-28
US057114		1997-08-28

Publications (1)

Publication Number	Publication Date
JPH11143498A true JPH11143498A (ja)	1999-05-28

Family

ID=22008595

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP10242058A Pending JPH11143498A (ja)	1997-08-28	1998-08-27	Ｌｐｃ係数のベクトル量子化方法

Country Status (3)

Country	Link
EP (1)	EP0899720B1 (de)
JP (1)	JPH11143498A (de)
DE (1)	DE69828119D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100474969B1 (ko) *	2002-06-04	2005-03-10	에스엘투 주식회사	음성신호 부호화를 위한 선 스펙트럼 계수의 벡터 양자화방법과 이를 위한 마스킹 임계치 산출 방법
KR100647290B1 (ko)	2004-09-22	2006-11-23	삼성전자주식회사	합성된 음성의 특성을 이용하여 양자화/역양자화를선택하는 음성 부호화/복호화 장치 및 그 방법
WO2007077841A1 (ja) *	2005-12-27	2007-07-12	Matsushita Electric Industrial Co., Ltd.	音声復号装置および音声復号方法
JP2013541737A (ja) *	2010-10-18	2013-11-14	サムスンエレクトロニクスカンパニーリミテッド	線形予測符号化係数を量子化するための低複雑度を有する加重値関数決定装置及びその方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
TW408298B (en) *	1997-08-28	2000-10-11	Texas Instruments Inc	Improved method for switched-predictive quantization
KR100464310B1 (ko) *	1999-03-13	2004-12-31	삼성전자주식회사	선 스펙트럼 쌍을 이용한 패턴 정합 방법
AU2003247040A1 (en)	2002-07-16	2004-02-02	Koninklijke Philips Electronics N.V.	Audio coding
CN101320565B (zh) *	2007-06-08	2011-05-11	华为技术有限公司	感知加权滤波方法及感知加权滤波器
CN111105807B (zh) *	2014-01-15	2023-09-15	三星电子株式会社	对线性预测编码系数进行量化的加权函数确定装置和方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
TW408298B (en) *	1997-08-28	2000-10-11	Texas Instruments Inc	Improved method for switched-predictive quantization

1998
- 1998-08-27 DE DE69828119T patent/DE69828119D1/de not_active Expired - Lifetime
- 1998-08-27 EP EP98306906A patent/EP0899720B1/de not_active Expired - Lifetime
- 1998-08-27 JP JP10242058A patent/JPH11143498A/ja active Pending

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100474969B1 (ko) *	2002-06-04	2005-03-10	에스엘투 주식회사	음성신호 부호화를 위한 선 스펙트럼 계수의 벡터 양자화방법과 이를 위한 마스킹 임계치 산출 방법
KR100647290B1 (ko)	2004-09-22	2006-11-23	삼성전자주식회사	합성된 음성의 특성을 이용하여 양자화/역양자화를선택하는 음성 부호화/복호화 장치 및 그 방법
WO2007077841A1 (ja) *	2005-12-27	2007-07-12	Matsushita Electric Industrial Co., Ltd.	音声復号装置および音声復号方法
US8160874B2 (en)	2005-12-27	2012-04-17	Panasonic Corporation	Speech frame loss compensation using non-cyclic-pulse-suppressed version of previous frame excitation as synthesis filter source
JP2013541737A (ja) *	2010-10-18	2013-11-14	サムスンエレクトロニクスカンパニーリミテッド	線形予測符号化係数を量子化するための低複雑度を有する加重値関数決定装置及びその方法
US9311926B2 (en)	2010-10-18	2016-04-12	Samsung Electronics Co., Ltd.	Apparatus and method for determining weighting function having for associating linear predictive coding (LPC) coefficients with line spectral frequency coefficients and immittance spectral frequency coefficients
JP2016130868A (ja) *	2010-10-18	2016-07-21	サムスンエレクトロニクスカンパニーリミテッド	加重値関数決定方法
US9773507B2 (en)	2010-10-18	2017-09-26	Samsung Electronics Co., Ltd.	Apparatus and method for determining weighting function having for associating linear predictive coding (LPC) coefficients with line spectral frequency coefficients and immittance spectral frequency coefficients
US10580425B2 (en)	2010-10-18	2020-03-03	Samsung Electronics Co., Ltd.	Determining weighting functions for line spectral frequency coefficients

Also Published As

Publication number	Publication date
EP0899720B1 (de)	2004-12-15
EP0899720A3 (de)	1999-09-15
DE69828119D1 (de)	2005-01-20
EP0899720A2 (de)	1999-03-03

Legal Events

Date

Code

Title

Description

2005-08-30

A621

Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050829

2008-12-03

A131

Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081202

2009-04-27

A02

Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20090424

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