CN1051100A - 带有自适应音调前置滤波器的线性预测编码语言合成器 - Google Patents
带有自适应音调前置滤波器的线性预测编码语言合成器 Download PDFInfo
- Publication number
- CN1051100A CN1051100A CN 90108434 CN90108434A CN1051100A CN 1051100 A CN1051100 A CN 1051100A CN 90108434 CN90108434 CN 90108434 CN 90108434 A CN90108434 A CN 90108434A CN 1051100 A CN1051100 A CN 1051100A
- Authority
- CN
- China
- Prior art keywords
- signal
- pumping signal
- filtering
- predictive coding
- tone
- 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
- 230000003044 adaptive effect Effects 0.000 title description 5
- 238000011045 prefiltration Methods 0.000 title description 5
- 238000005086 pumping Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- G10L19/04—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
- G10L19/26—Pre-filtering or post-filtering
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)
- Noise Elimination (AREA)
- Stereophonic System (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42287189A | 1989-10-17 | 1989-10-17 | |
| US07/422,871 | 1989-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1051100A true CN1051100A (zh) | 1991-05-01 |
Family
ID=23676771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90108434 Pending CN1051100A (zh) | 1989-10-17 | 1990-10-15 | 带有自适应音调前置滤波器的线性预测编码语言合成器 |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0496829B1 (de) |
| CN (1) | CN1051100A (de) |
| AU (1) | AU644119B2 (de) |
| CA (1) | CA2066568A1 (de) |
| DE (1) | DE69033672T2 (de) |
| WO (1) | WO1991006091A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055585C (zh) * | 1994-11-22 | 2000-08-16 | 冲电气工业株式会社 | 代码激励线性预测编码器和译码器 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9512284D0 (en) * | 1995-06-16 | 1995-08-16 | Nokia Mobile Phones Ltd | Speech Synthesiser |
| DE19629946A1 (de) * | 1996-07-25 | 1998-01-29 | Joachim Dipl Ing Mersdorf | Ein LPC-basiertes Verfahren zur Analyse und Synthese von Sprachgrundfrequenzverläufen mittels Filterparametrisierung und Restsignalapproximation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4220819A (en) * | 1979-03-30 | 1980-09-02 | Bell Telephone Laboratories, Incorporated | Residual excited predictive speech coding system |
| US4969192A (en) * | 1987-04-06 | 1990-11-06 | Voicecraft, Inc. | Vector adaptive predictive coder for speech and audio |
-
1990
- 1990-09-17 CA CA 2066568 patent/CA2066568A1/en not_active Abandoned
- 1990-09-17 WO PCT/US1990/005191 patent/WO1991006091A1/en active IP Right Grant
- 1990-09-17 AU AU67256/90A patent/AU644119B2/en not_active Expired
- 1990-09-17 DE DE69033672T patent/DE69033672T2/de not_active Expired - Lifetime
- 1990-09-17 EP EP90916987A patent/EP0496829B1/de not_active Expired - Lifetime
- 1990-10-15 CN CN 90108434 patent/CN1051100A/zh active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055585C (zh) * | 1994-11-22 | 2000-08-16 | 冲电气工业株式会社 | 代码激励线性预测编码器和译码器 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2066568A1 (en) | 1991-04-18 |
| DE69033672T2 (de) | 2001-05-10 |
| DE69033672D1 (de) | 2001-01-11 |
| AU6725690A (en) | 1991-05-16 |
| EP0496829A4 (en) | 1993-08-18 |
| EP0496829A1 (de) | 1992-08-05 |
| EP0496829B1 (de) | 2000-12-06 |
| WO1991006091A1 (en) | 1991-05-02 |
| AU644119B2 (en) | 1993-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |