NO303475B1 - Avgrenset stokastisk talekoding - Google Patents

Avgrenset stokastisk talekoding Download PDF

Info

Publication number: NO303475B1
Authority: NO; Norway
Prior art keywords: signal; signals; filter; parameters; excitation
Prior art date: 1989-09-01

Application number

NO903641A

Other languages

English (en)

Norwegian (no)

Other versions

NO903641L (no

NO903641D0 (no

Inventor

Yair Shoham

Original Assignee

American Telephone & Telegraph

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.)

1989-09-01

Filing date

1990-08-17

Publication date

1998-07-13

1990-08-17 Application filed by American Telephone & Telegraph filed Critical American Telephone & Telegraph

1990-08-17 Publication of NO903641D0 publication Critical patent/NO903641D0/no

1991-03-04 Publication of NO903641L publication Critical patent/NO903641L/no

1998-07-13 Publication of NO303475B1 publication Critical patent/NO303475B1/no

Links

230000005284 excitation Effects 0.000 claims description 53
238000000034 method Methods 0.000 claims description 36
238000001914 filtration Methods 0.000 claims description 9
230000007774 longterm Effects 0.000 claims description 6
230000004044 response Effects 0.000 claims description 6
238000013459 approach Methods 0.000 claims description 5
230000003321 amplification Effects 0.000 claims description 3
238000004891 communication Methods 0.000 claims description 3
238000003199 nucleic acid amplification method Methods 0.000 claims description 3
230000002194 synthesizing effect Effects 0.000 claims description 3
238000012545 processing Methods 0.000 description 12
230000008569 process Effects 0.000 description 9
230000006870 function Effects 0.000 description 6
238000003860 storage Methods 0.000 description 6
238000003786 synthesis reaction Methods 0.000 description 6
230000015572 biosynthetic process Effects 0.000 description 5
238000004422 calculation algorithm Methods 0.000 description 5
238000013139 quantization Methods 0.000 description 5
101000822695 Clostridium perfringens (strain 13 / Type A) Small, acid-soluble spore protein C1 Proteins 0.000 description 4
101000655262 Clostridium perfringens (strain 13 / Type A) Small, acid-soluble spore protein C2 Proteins 0.000 description 4
101000655256 Paraclostridium bifermentans Small, acid-soluble spore protein alpha Proteins 0.000 description 4
101000655264 Paraclostridium bifermentans Small, acid-soluble spore protein beta Proteins 0.000 description 4
230000006978 adaptation Effects 0.000 description 4
238000004458 analytical method Methods 0.000 description 4
230000000694 effects Effects 0.000 description 4
230000002829 reductive effect Effects 0.000 description 4
239000013598 vector Substances 0.000 description 4
238000010276 construction Methods 0.000 description 3
230000006872 improvement Effects 0.000 description 3
238000005259 measurement Methods 0.000 description 3
230000008447 perception Effects 0.000 description 3
230000000737 periodic effect Effects 0.000 description 3
230000003595 spectral effect Effects 0.000 description 3
230000002411 adverse Effects 0.000 description 2
230000005540 biological transmission Effects 0.000 description 2
238000004364 calculation method Methods 0.000 description 2
230000003111 delayed effect Effects 0.000 description 2
230000002349 favourable effect Effects 0.000 description 2
230000007246 mechanism Effects 0.000 description 2
230000009467 reduction Effects 0.000 description 2
238000005070 sampling Methods 0.000 description 2
238000000926 separation method Methods 0.000 description 2
108010076504 Protein Sorting Signals Proteins 0.000 description 1
230000003044 adaptive effect Effects 0.000 description 1
230000002238 attenuated effect Effects 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000011161 development Methods 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
238000011835 investigation Methods 0.000 description 1
238000005457 optimization Methods 0.000 description 1
238000011084 recovery Methods 0.000 description 1
230000002787 reinforcement Effects 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
230000007480 spreading Effects 0.000 description 1
238000003892 spreading Methods 0.000 description 1
230000003068 static effect Effects 0.000 description 1
238000005309 stochastic process Methods 0.000 description 1
238000012360 testing method Methods 0.000 description 1
238000012546 transfer Methods 0.000 description 1

Classifications

- 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
- 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
- G10L2019/0001—Codebooks
- G10L2019/0003—Backward prediction of gain
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals

Landscapes

Engineering & Computer Science (AREA)
Computational Linguistics (AREA)
Signal Processing (AREA)
Health & Medical Sciences (AREA)
Audiology, Speech & Language Pathology (AREA)
Human Computer Interaction (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
Theoretical Computer Science (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Filters That Use Time-Delay Elements (AREA)

NO903641A 1989-09-01 1990-08-17 Avgrenset stokastisk talekoding NO303475B1 (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US40200689A	1989-09-01	1989-09-01

Publications (3)

Publication Number	Publication Date
NO903641D0 NO903641D0 (no)	1990-08-17
NO903641L NO903641L (no)	1991-03-04
NO303475B1 true NO303475B1 (no)	1998-07-13

Family

ID=23590155

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO903641A NO303475B1 (no)	1989-09-01	1990-08-17	Avgrenset stokastisk talekoding

Country Status (8)

Country	Link
US (2)	US5481642A (fr)
EP (1)	EP0415675B1 (fr)
JP (1)	JP3062226B2 (fr)
KR (1)	KR100204740B1 (fr)
CA (1)	CA2021514C (fr)
DE (1)	DE69017801T2 (fr)
FI (1)	FI97580C (fr)
NO (1)	NO303475B1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2021514C (fr) *	1989-09-01	1998-12-15	Yair Shoham	Codage a excitation stochastique avec contrainte
JPH04264597A (ja) *	1991-02-20	1992-09-21	Fujitsu Ltd	音声符号化装置および音声復号装置
US5434947A (en) *	1993-02-23	1995-07-18	Motorola	Method for generating a spectral noise weighting filter for use in a speech coder
AU675322B2 (en) *	1993-04-29	1997-01-30	Unisearch Limited	Use of an auditory model to improve quality or lower the bit rate of speech synthesis systems
US5642464A (en) *	1995-05-03	1997-06-24	Northern Telecom Limited	Methods and apparatus for noise conditioning in digital speech compression systems using linear predictive coding
US5649051A (en) *	1995-06-01	1997-07-15	Rothweiler; Joseph Harvey	Constant data rate speech encoder for limited bandwidth path
US5668925A (en) *	1995-06-01	1997-09-16	Martin Marietta Corporation	Low data rate speech encoder with mixed excitation
TW317051B (fr) *	1996-02-15	1997-10-01	Philips Electronics Nv
CA2185053C (fr) *	1996-06-24	2002-04-16	Frank B. Norman	Canal de retour interactif pour systeme de diffusion directe par satellite
US5839098A (en)	1996-12-19	1998-11-17	Lucent Technologies Inc.	Speech coder methods and systems
FR2761512A1 (fr) *	1997-03-25	1998-10-02	Philips Electronics Nv	Dispositif de generation de bruit de confort et codeur de parole incluant un tel dispositif
CA2636684C (fr) *	1997-12-24	2009-08-18	Mitsubishi Denki Kabushiki Kaisha	Methode de codage et le decodage de la parole et appareils connexes
JP3842432B2 (ja) *	1998-04-20	2006-11-08	株式会社東芝	ベクトル量子化方法
DE19845888A1 (de) *	1998-10-06	2000-05-11	Bosch Gmbh Robert	Verfahren zur Codierung oder Decodierung von Sprachsignalabtastwerten sowie Coder bzw. Decoder
GB2348342B (en) *	1999-03-25	2004-01-21	Roke Manor Research	Improvements in or relating to telecommunication systems
FI116992B (fi)	1999-07-05	2006-04-28	Nokia Corp	Menetelmät, järjestelmä ja laitteet audiosignaalin koodauksen ja siirron tehostamiseksi
US6721701B1 (en) *	1999-09-20	2004-04-13	Lucent Technologies Inc.	Method and apparatus for sound discrimination
DE10120231A1 (de) *	2001-04-19	2002-10-24	Deutsche Telekom Ag	Verfahren und Anordnung zur einkanaligen Geräuschreduktion für gestörte Sprachsignale

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4827517A (en) *	1985-12-26	1989-05-02	American Telephone And Telegraph Company, At&T Bell Laboratories	Digital speech processor using arbitrary excitation coding
JPS6337724A (ja) *	1986-07-31	1988-02-18	Fujitsu Ltd	符号化伝送装置
US4797926A (en) *	1986-09-11	1989-01-10	American Telephone And Telegraph Company, At&T Bell Laboratories	Digital speech vocoder
JPS63214032A (ja) *	1987-03-02	1988-09-06	Fujitsu Ltd	符号化伝送装置
US4969192A (en) *	1987-04-06	1990-11-06	Voicecraft, Inc.	Vector adaptive predictive coder for speech and audio
US4868867A (en) *	1987-04-06	1989-09-19	Voicecraft Inc.	Vector excitation speech or audio coder for transmission or storage
US4899385A (en) *	1987-06-26	1990-02-06	American Telephone And Telegraph Company	Code excited linear predictive vocoder
CA2021514C (fr) *	1989-09-01	1998-12-15	Yair Shoham	Codage a excitation stochastique avec contrainte

1990
- 1990-07-19 CA CA002021514A patent/CA2021514C/fr not_active Expired - Lifetime
- 1990-08-17 NO NO903641A patent/NO303475B1/no unknown
- 1990-08-24 EP EP90309335A patent/EP0415675B1/fr not_active Expired - Lifetime
- 1990-08-24 DE DE69017801T patent/DE69017801T2/de not_active Expired - Lifetime
- 1990-08-30 JP JP2226785A patent/JP3062226B2/ja not_active Expired - Lifetime
- 1990-08-31 KR KR1019900013571A patent/KR100204740B1/ko not_active Expired - Fee Related
- 1990-08-31 FI FI904303A patent/FI97580C/fi active IP Right Grant
1994
- 1994-08-08 US US08/287,636 patent/US5481642A/en not_active Expired - Lifetime
1996
- 1996-10-07 US US08/726,620 patent/US5719992A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
KR910007291A (ko)	1991-04-30
DE69017801T2 (de)	1995-07-13
US5719992A (en)	1998-02-17
NO903641L (no)	1991-03-04
FI97580B (fi)	1996-09-30
DE69017801D1 (de)	1995-04-20
JP3062226B2 (ja)	2000-07-10
EP0415675A2 (fr)	1991-03-06
JPH03102921A (ja)	1991-04-30
CA2021514C (fr)	1998-12-15
NO903641D0 (no)	1990-08-17
FI904303A0 (fi)	1990-08-31
EP0415675B1 (fr)	1995-03-15
US5481642A (en)	1996-01-02
CA2021514A1 (fr)	1991-03-02
FI97580C (fi)	1997-01-10
KR100204740B1 (ko)	1999-06-15
EP0415675A3 (en)	1991-04-24

Publication	Publication Date	Title
RU2262748C2 (ru)	2005-10-20	Многорежимное устройство кодирования
NO303475B1 (no)	1998-07-13	Avgrenset stokastisk talekoding
US5602961A (en)	1997-02-11	Method and apparatus for speech compression using multi-mode code excited linear predictive coding
US6732070B1 (en)	2004-05-04	Wideband speech codec using a higher sampling rate in analysis and synthesis filtering than in excitation searching
US6334105B1 (en)	2001-12-25	Multimode speech encoder and decoder apparatuses
AU700205B2 (en)	1998-12-24	Improved adaptive codebook-based speech compression system
JP3346765B2 (ja)	2002-11-18	音声復号化方法及び音声復号化装置
US6345255B1 (en)	2002-02-05	Apparatus and method for coding speech signals by making use of an adaptive codebook
KR20030046451A (ko)	2003-06-12	음성 코딩을 위한 코드북 구조 및 탐색 방법
JPH10124088A (ja)	1998-05-15	音声帯域幅拡張装置及び方法
EP0837453A2 (fr)	1998-04-22	Procédé d'analyse de la parole et procédé et dispositif de codage de la parole
US6047253A (en)	2000-04-04	Method and apparatus for encoding/decoding voiced speech based on pitch intensity of input speech signal
JP3628268B2 (ja)	2005-03-09	音響信号符号化方法、復号化方法及び装置並びにプログラム及び記録媒体
JPH08272395A (ja)	1996-10-18	音声符号化装置
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JPH0830299A (ja)	1996-02-02	音声符号化装置
JP3252285B2 (ja)	2002-02-04	音声帯域信号符号化方法
JP3256215B2 (ja)	2002-02-12	音声符号化装置
JP2002073097A (ja)	2002-03-12	Ｃｅｌｐ型音声符号化装置とｃｅｌｐ型音声復号化装置及び音声符号化方法と音声復号化方法
JPH09179593A (ja)	1997-07-11	音声符号化装置
JP3002299B2 (ja)	2000-01-24	音声符号化装置
JPH06130994A (ja)	1994-05-13	音声符号化方法