DE186763T1 - Verfahren und einrichtung zur kodierung und dekodierung von sprachsignalen durch vektorquantisierung. - Google Patents
Verfahren und einrichtung zur kodierung und dekodierung von sprachsignalen durch vektorquantisierung.Info
- Publication number
- DE186763T1 DE186763T1 DE198585114366T DE85114366T DE186763T1 DE 186763 T1 DE186763 T1 DE 186763T1 DE 198585114366 T DE198585114366 T DE 198585114366T DE 85114366 T DE85114366 T DE 85114366T DE 186763 T1 DE186763 T1 DE 186763T1
- Authority
- DE
- Germany
- Prior art keywords
- vectors
- quantized
- vector
- coefficients
- receives
- Prior art date
- 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
Links
- 239000013598 vector Substances 0.000 title claims abstract 62
- 238000000034 method Methods 0.000 title claims abstract 8
- 238000013139 quantization Methods 0.000 title claims 2
- 238000001914 filtration Methods 0.000 claims abstract 7
- 230000006870 function Effects 0.000 claims 6
- 230000003595 spectral effect Effects 0.000 claims 2
- 108010076504 Protein Sorting Signals Proteins 0.000 claims 1
- 238000004364 calculation method Methods 0.000 claims 1
- OLNTVTPDXPETLC-XPWALMASSA-N ezetimibe Chemical compound N1([C@@H]([C@H](C1=O)CC[C@H](O)C=1C=CC(F)=CC=1)C=1C=CC(O)=CC=1)C1=CC=C(F)C=C1 OLNTVTPDXPETLC-XPWALMASSA-N 0.000 claims 1
- 239000010985 leather Substances 0.000 claims 1
- 230000005284 excitation Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 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
-
- 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
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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT68134/84A IT1180126B (it) | 1984-11-13 | 1984-11-13 | Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante tecniche di quantizzazione vettoriale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE186763T1 true DE186763T1 (de) | 1986-12-18 |
Family
ID=11308080
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE198585114366T Pending DE186763T1 (de) | 1984-11-13 | 1985-11-12 | Verfahren und einrichtung zur kodierung und dekodierung von sprachsignalen durch vektorquantisierung. |
| DE8585114366T Expired DE3569165D1 (en) | 1984-11-13 | 1985-11-12 | Method of and device for speech signal coding and decoding by vector quantization techniques |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8585114366T Expired DE3569165D1 (en) | 1984-11-13 | 1985-11-12 | Method of and device for speech signal coding and decoding by vector quantization techniques |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4791670A (enExample) |
| EP (1) | EP0186763B1 (enExample) |
| JP (1) | JPS61121616A (enExample) |
| CA (1) | CA1241116A (enExample) |
| DE (2) | DE186763T1 (enExample) |
| IT (1) | IT1180126B (enExample) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1195350B (it) * | 1986-10-21 | 1988-10-12 | Cselt Centro Studi Lab Telecom | Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante estrazione di para metri e tecniche di quantizzazione vettoriale |
| JPH01238229A (ja) * | 1988-03-17 | 1989-09-22 | Sony Corp | デイジタル信号処理装置 |
| EP0401452B1 (en) * | 1989-06-07 | 1994-03-23 | International Business Machines Corporation | Low-delay low-bit-rate speech coder |
| US5293449A (en) * | 1990-11-23 | 1994-03-08 | Comsat Corporation | Analysis-by-synthesis 2,4 kbps linear predictive speech codec |
| 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 |
| US5265190A (en) * | 1991-05-31 | 1993-11-23 | Motorola, Inc. | CELP vocoder with efficient adaptive codebook search |
| US5255339A (en) * | 1991-07-19 | 1993-10-19 | Motorola, Inc. | Low bit rate vocoder means and method |
| CA2078927C (en) * | 1991-09-25 | 1997-01-28 | Katsushi Seza | Code-book driven vocoder device with voice source generator |
| FR2690551B1 (fr) * | 1991-10-15 | 1994-06-03 | Thomson Csf | Procede de quantification d'un filtre predicteur pour vocodeur a tres faible debit. |
| US5357567A (en) * | 1992-08-14 | 1994-10-18 | Motorola, Inc. | Method and apparatus for volume switched gain control |
| JP2746033B2 (ja) * | 1992-12-24 | 1998-04-28 | 日本電気株式会社 | 音声復号化装置 |
| JP3321976B2 (ja) * | 1994-04-01 | 2002-09-09 | 富士通株式会社 | 信号処理装置および信号処理方法 |
| JPH08179796A (ja) * | 1994-12-21 | 1996-07-12 | Sony Corp | 音声符号化方法 |
| GB2300548B (en) * | 1995-05-02 | 2000-01-12 | Motorola Ltd | Method for a communications system |
| US5832131A (en) * | 1995-05-03 | 1998-11-03 | National Semiconductor Corporation | Hashing-based vector quantization |
| FR2734389B1 (fr) * | 1995-05-17 | 1997-07-18 | Proust Stephane | Procede d'adaptation du niveau de masquage du bruit dans un codeur de parole a analyse par synthese utilisant un filtre de ponderation perceptuelle a court terme |
| FR2741744B1 (fr) * | 1995-11-23 | 1998-01-02 | Thomson Csf | Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits |
| JP2778567B2 (ja) * | 1995-12-23 | 1998-07-23 | 日本電気株式会社 | 信号符号化装置及び方法 |
| US6356213B1 (en) * | 2000-05-31 | 2002-03-12 | Lucent Technologies Inc. | System and method for prediction-based lossless encoding |
| AU2003264322A1 (en) * | 2003-09-17 | 2005-04-06 | Beijing E-World Technology Co., Ltd. | Method and device of multi-resolution vector quantilization for audio encoding and decoding |
| EP4253088B1 (en) | 2022-03-28 | 2025-07-02 | Sumitomo Rubber Industries, Ltd. | Motorcycle tire |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595916B2 (ja) * | 1975-02-13 | 1984-02-07 | 日本電気株式会社 | 音声分折合成装置 |
| JPS5651637A (en) * | 1979-10-04 | 1981-05-09 | Toray Eng Co Ltd | Gear inspecting device |
| JPS60116000A (ja) * | 1983-11-28 | 1985-06-22 | ケイディディ株式会社 | 音声符号化装置 |
| US4670851A (en) * | 1984-01-09 | 1987-06-02 | Mitsubishi Denki Kabushiki Kaisha | Vector quantizer |
| US4701954A (en) * | 1984-03-16 | 1987-10-20 | American Telephone And Telegraph Company, At&T Bell Laboratories | Multipulse LPC speech processing arrangement |
-
1984
- 1984-11-13 IT IT68134/84A patent/IT1180126B/it active
-
1985
- 1985-09-20 US US06/779,089 patent/US4791670A/en not_active Expired - Lifetime
- 1985-11-11 JP JP60250992A patent/JPS61121616A/ja active Granted
- 1985-11-12 DE DE198585114366T patent/DE186763T1/de active Pending
- 1985-11-12 CA CA000495036A patent/CA1241116A/en not_active Expired
- 1985-11-12 EP EP85114366A patent/EP0186763B1/en not_active Expired
- 1985-11-12 DE DE8585114366T patent/DE3569165D1/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4791670A (en) | 1988-12-13 |
| IT8468134A0 (it) | 1984-11-13 |
| JPS61121616A (ja) | 1986-06-09 |
| DE3569165D1 (en) | 1989-05-03 |
| EP0186763B1 (en) | 1989-03-29 |
| EP0186763A1 (en) | 1986-07-09 |
| IT1180126B (it) | 1987-09-23 |
| IT8468134A1 (it) | 1986-05-13 |
| CA1241116A (en) | 1988-08-23 |
| JPH0563000B2 (enExample) | 1993-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE186763T1 (de) | Verfahren und einrichtung zur kodierung und dekodierung von sprachsignalen durch vektorquantisierung. | |
| DE69214969T2 (de) | Verfahren und Vorrichtung zur Erzeugung von Hilfsinformationen zur Ausführung einer Suche in einem Kodebuch mit geringer Dichte | |
| DE3784942T2 (de) | Duplex-datenuebertragung. | |
| DE68916944T2 (de) | Verfahren zur schnellen Bestimmung der Grundfrequenz in Sprachcodierern mit langfristiger Prädiktion. | |
| DE266620T1 (de) | Verfahren und einrichtung zur kodierung und dekodierung von sprachsignalen durch parameterextraktion und vektorquantisierung. | |
| DE69420431T2 (de) | Sprachkodierungssystem | |
| DE69232892T2 (de) | Sprachkodierungssystem | |
| DE69032168T2 (de) | Dynamisches codebuch zur wirksamen sprachcodierung unter anwendung von algebraischen coden | |
| DE4397106B4 (de) | Schnelles auf einer Baumstruktur basierendes Verfahren zur Vektorquantisierung | |
| DE2945414C2 (de) | Sprachsignal-Voraussageprozessor und Verfahren zur Verarbeitung eines Sprachleistungssignals | |
| DE60201766T2 (de) | Verbesserung der Periodizität der CELP-Anregung für die Sprachkodierung und -dekodierung | |
| DE69029232T2 (de) | System und Methode zur Sprachkodierung | |
| DE3883519T2 (de) | Verfahren und Einrichtung zur Sprachkodierung mit mehreren Datenraten. | |
| DE69604729T2 (de) | Verfahren zur sprachkodierung mittels linearer prädiktion und anregung durch algebraische kodes | |
| DE19604273C2 (de) | Verfahren und Vorrichtung zum Durchführen einer Suche in einem Kodebuch im Hinblick auf das Kodieren eines Klangsignales, Zellkommunikationssystem, Zellnetzwerkelement und mobile Zell-Sender-/Empfänger-Einheit | |
| DE69900786T2 (de) | Sprachkodierung | |
| EP1979901B1 (de) | Verfahren und anordnungen zur audiosignalkodierung | |
| DE69012419T2 (de) | Verfahren zum Einrichten von Anregungsimpulsen in einem linearen Pradiktionssprachcodierer. | |
| DE69314389T2 (de) | Zweimoden langzeitprädiktion in sprechkodierung | |
| DE69329569T2 (de) | Digitale Kodierung von Sprachsignalen | |
| DE19722705A1 (de) | Verfahren zur Abschätzung der Verstärkung zur Sprachkodierung | |
| DE69106580T2 (de) | Codieranordnung mit einem Unterbandcoder und Sender mit der Codieranordnung. | |
| DE69906330T2 (de) | Adaptives kriterium für die sprachkodierung | |
| DE69228858T2 (de) | Methode zur Sprachkodierung und Sprachkodierer | |
| DE69324732T2 (de) | Selektive Anwendung von Sprachkodierungstechniken |