IT1264766B1 - Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi. - Google Patents
Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi.Info
- Publication number
- IT1264766B1 IT1264766B1 IT93TO000244A ITTO930244A IT1264766B1 IT 1264766 B1 IT1264766 B1 IT 1264766B1 IT 93TO000244 A IT93TO000244 A IT 93TO000244A IT TO930244 A ITTO930244 A IT TO930244A IT 1264766 B1 IT1264766 B1 IT 1264766B1
- Authority
- IT
- Italy
- Prior art keywords
- analysis techniques
- pulse excitation
- voice coder
- excitation analysis
- coder
- Prior art date
Links
- 230000005284 excitation Effects 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
- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
-
- 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
- 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
- G10L2019/0012—Smoothing of parameters of the decoder interpolation
-
- 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
-
- 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
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum
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)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93TO000244A IT1264766B1 (it) | 1993-04-09 | 1993-04-09 | Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi. |
EP94105438A EP0619574A1 (en) | 1993-04-09 | 1994-04-07 | Speech coder employing analysis-by-synthesis techniques with a pulse excitation |
JP6095525A JPH075899A (ja) | 1993-04-09 | 1994-04-08 | パルス励振による解析−合成技術を採用した音声符号器 |
FI941648A FI941648A (fi) | 1993-04-09 | 1994-04-08 | Puhekoodain, joka hyödyntää synteesi-analyysitekniikkaa, ja joka omaa pulssiaktivoinnin |
CA002120902A CA2120902A1 (en) | 1993-04-09 | 1994-04-08 | Speech coder employing analysis-by-synthesis techniques with a pulse excitation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93TO000244A IT1264766B1 (it) | 1993-04-09 | 1993-04-09 | Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO930244A0 ITTO930244A0 (it) | 1993-04-09 |
ITTO930244A1 ITTO930244A1 (it) | 1994-10-09 |
IT1264766B1 true IT1264766B1 (it) | 1996-10-04 |
Family
ID=11411368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT93TO000244A IT1264766B1 (it) | 1993-04-09 | 1993-04-09 | Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0619574A1 (it) |
JP (1) | JPH075899A (it) |
CA (1) | CA2120902A1 (it) |
FI (1) | FI941648A (it) |
IT (1) | IT1264766B1 (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2729246A1 (fr) * | 1995-01-06 | 1996-07-12 | Matra Communication | Procede de codage de parole a analyse par synthese |
FR2729244B1 (fr) * | 1995-01-06 | 1997-03-28 | Matra Communication | Procede de codage de parole a analyse par synthese |
FR2729247A1 (fr) * | 1995-01-06 | 1996-07-12 | Matra Communication | Procede de codage de parole a analyse par synthese |
US5664054A (en) * | 1995-09-29 | 1997-09-02 | Rockwell International Corporation | Spike code-excited linear prediction |
US6226604B1 (en) * | 1996-08-02 | 2001-05-01 | Matsushita Electric Industrial Co., Ltd. | Voice encoder, voice decoder, recording medium on which program for realizing voice encoding/decoding is recorded and mobile communication apparatus |
EP0904584A2 (en) * | 1997-02-10 | 1999-03-31 | Koninklijke Philips Electronics N.V. | Transmission system for transmitting speech signals |
US6334648B1 (en) | 1997-03-21 | 2002-01-01 | Girsberger Holding Ag | Vehicle seat |
US6766289B2 (en) * | 2001-06-04 | 2004-07-20 | Qualcomm Incorporated | Fast code-vector searching |
US7236928B2 (en) | 2001-12-19 | 2007-06-26 | Ntt Docomo, Inc. | Joint optimization of speech excitation and filter parameters |
JP3981399B1 (ja) * | 2006-03-10 | 2007-09-26 | 松下電器産業株式会社 | 固定符号帳探索装置および固定符号帳探索方法 |
EP1870880B1 (en) | 2006-06-19 | 2010-04-07 | Sharp Kabushiki Kaisha | Signal processing method, signal processing apparatus and recording medium |
WO2010058931A2 (en) * | 2008-11-14 | 2010-05-27 | Lg Electronics Inc. | A method and an apparatus for processing a signal |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8500843A (nl) * | 1985-03-22 | 1986-10-16 | Koninkl Philips Electronics Nv | Multipuls-excitatie lineair-predictieve spraakcoder. |
US4890328A (en) * | 1985-08-28 | 1989-12-26 | American Telephone And Telegraph Company | Voice synthesis utilizing multi-level filter excitation |
US5293449A (en) * | 1990-11-23 | 1994-03-08 | Comsat Corporation | Analysis-by-synthesis 2,4 kbps linear predictive speech codec |
-
1993
- 1993-04-09 IT IT93TO000244A patent/IT1264766B1/it active IP Right Grant
-
1994
- 1994-04-07 EP EP94105438A patent/EP0619574A1/en not_active Withdrawn
- 1994-04-08 FI FI941648A patent/FI941648A/fi not_active Application Discontinuation
- 1994-04-08 CA CA002120902A patent/CA2120902A1/en not_active Abandoned
- 1994-04-08 JP JP6095525A patent/JPH075899A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FI941648A0 (fi) | 1994-04-08 |
ITTO930244A1 (it) | 1994-10-09 |
CA2120902A1 (en) | 1994-10-10 |
ITTO930244A0 (it) | 1993-04-09 |
JPH075899A (ja) | 1995-01-10 |
FI941648A (fi) | 1994-10-10 |
EP0619574A1 (en) | 1994-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69331079D1 (de) | CELP-Vocoder | |
DE69613360D1 (de) | Linear-prädiktiver analyse-durch-synthese sprachkodierer | |
DE69513919D1 (de) | Sprachanalyse | |
DE69615667D1 (de) | Spracherkennung | |
DE3663863D1 (en) | Multi-pulse excitation linear-predictive speech coder | |
DE69030561D1 (de) | Spracherkennungseinrichtung | |
NO972026D0 (no) | Talegjenkjenning | |
DE69133296T2 (de) | Sprachcodierer | |
DE69427717D1 (de) | Sprachdialogsystem | |
IT1264766B1 (it) | Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi. | |
DE69133085D1 (de) | Sprachkodierer | |
DE69009571D1 (de) | Sprachsynthesizer. | |
DE69014680D1 (de) | Einrichtung zur Stimmensynthese. | |
DE69620348D1 (de) | Hammermechanismus | |
DE4497279T1 (de) | Klavier | |
DE69415994D1 (de) | Sprachanalysegerät | |
IT8867868A0 (it) | Procedimento e dispositivo per la codifica decodifica di segnali vocali con l impiego di un eccitazione a impulsi multipli | |
IT1276336B1 (it) | Disposizione e metodo di sintesi vocale | |
GB2237484B (en) | Speech codec arrangement | |
ITTO910493A0 (it) | Perfezionamentiai codifiatori della voce basai su tecniche di analisi per sintesi | |
DK425689D0 (da) | Talekodning | |
ITTO920091A1 (it) | Fondo per fisarmoniche acustiche. | |
DE69232887D1 (de) | Sprachkodierungsverfahren | |
KR950014107B1 (en) | Excitation pulse positioning method in a linear predictive speech coder | |
IT223736Z2 (it) | Vocabolario plurilingue |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |