EP0537948A3 - Method and apparatus for smoothing pitch-cycle waveforms - Google Patents

Method and apparatus for smoothing pitch-cycle waveforms Download PDF

Info

Publication number: EP0537948A3
Authority: EP; European Patent Office
Prior art keywords: cycle waveforms; smoothing; pitch; smoothing pitch; waveforms
Prior art date: 1991-10-18
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.): Granted

Application number

EP19920309167

Other versions

EP0537948B1 (en

EP0537948A2 (en

Inventor

Willem Bastiaan Kleijn

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.)

AT&T Corp

Original Assignee

American Telephone and Telegraph Co 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.)

1991-10-18

Filing date

1992-10-08

Publication date

1993-06-23

1992-10-08 Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc

1993-04-21 Publication of EP0537948A2 publication Critical patent/EP0537948A2/en

1993-06-23 Publication of EP0537948A3 publication Critical patent/EP0537948A3/en

1997-09-03 Application granted granted Critical

1997-09-03 Publication of EP0537948B1 publication Critical patent/EP0537948B1/en

2012-10-08 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000009499 grossing Methods 0.000 title 1
238000000034 method Methods 0.000 title 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
- G10L19/04—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

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)
Compression, Expansion, Code Conversion, And Decoders (AREA)

EP19920309167 1991-10-18 1992-10-08 Method and apparatus for smoothing pitch-cycle waveforms Expired - Lifetime EP0537948B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US77856091A	1991-10-18	1991-10-18
US778560		1991-10-18

Publications (3)

Publication Number	Publication Date
EP0537948A2 EP0537948A2 (en)	1993-04-21
EP0537948A3 true EP0537948A3 (en)	1993-06-23
EP0537948B1 EP0537948B1 (en)	1997-09-03

Family

ID=25113764

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19920309167 Expired - Lifetime EP0537948B1 (en)	1991-10-18	1992-10-08	Method and apparatus for smoothing pitch-cycle waveforms

Country Status (4)

Country	Link
EP (1)	EP0537948B1 (en)
JP (1)	JP3798433B2 (en)
DE (1)	DE69221985T2 (en)
ES (1)	ES2104842T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN1192358C (en) *	1997-12-08	2005-03-09	三菱电机株式会社	Sound signal processing method and sound signal processing device
AU4394300A (en) *	1999-05-19	2000-12-12	Noisecom Aps	A method and apparatus for noise reduction in speech signals
JP4968421B2 (en) *	2001-09-28	2012-07-04	大日本印刷株式会社	Time series signal analyzer

1992
- 1992-10-08 EP EP19920309167 patent/EP0537948B1/en not_active Expired - Lifetime
- 1992-10-08 DE DE1992621985 patent/DE69221985T2/en not_active Expired - Fee Related
- 1992-10-08 ES ES92309167T patent/ES2104842T3/en not_active Expired - Lifetime
- 1992-10-16 JP JP27759292A patent/JP3798433B2/en not_active Expired - Lifetime

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ICASSP 90 vol. 2, 3 April 1990, ALBUQUERQUE pages 661 - 664 P.KROON ET AL. 'Pitch predictors with high temporal resolution' *
ICASSP 91 vol. 1, 14 May 1991, TORONTO pages 233 - 236 M.COPPERI 'Efficient excitation modeling in a low bit-rate celp coder' *
SPEECH COMMUNICATION vol. 7, 1988, pages 125 - 149 U.HEUTE 'Medium-rate speech coding - trial of a review' *

Also Published As

Publication number	Publication date
EP0537948B1 (en)	1997-09-03
EP0537948A2 (en)	1993-04-21
DE69221985D1 (en)	1997-10-09
JPH05224698A (en)	1993-09-03
DE69221985T2 (en)	1998-01-08
JP3798433B2 (en)	2006-07-19
ES2104842T3 (en)	1997-10-16

Legal Events

Date	Code	Title	Description
1993-03-05	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1993-05-06	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
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1994-02-02	17P	Request for examination filed	Effective date: 19931203
1994-06-22	RAP3	Party data changed (applicant data changed or rights of an application transferred)	Owner name: AT&T CORP.
1996-06-26	17Q	First examination report despatched	Effective date: 19960514
1997-01-16	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-03-04	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1997-05-22	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1997-07-18	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1997-09-03	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE ES FR GB IT
1997-09-04	ITF	It: translation for a ep patent filed	Owner name: JACOBACCI & PERANI S.P.A.
1997-09-12	ET	Fr: translation filed
1997-10-09	REF	Corresponds to:	Ref document number: 69221985 Country of ref document: DE Date of ref document: 19971009
1997-10-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2104842 Country of ref document: ES Kind code of ref document: T3
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1998-07-10	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1998-07-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1998-08-26	26N	No opposition filed
1998-09-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19980915 Year of fee payment: 7
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1999-10-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19991031
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2008-06-25	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20071008
2008-11-28	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071008
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2009-02-27	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19981031
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