AU577641B2 - Relp vocoder implemented in digital signal processors - Google Patents
Relp vocoder implemented in digital signal processorsInfo
- Publication number
- AU577641B2 AU577641B2 AU50198/85A AU5019885A AU577641B2 AU 577641 B2 AU577641 B2 AU 577641B2 AU 50198/85 A AU50198/85 A AU 50198/85A AU 5019885 A AU5019885 A AU 5019885A AU 577641 B2 AU577641 B2 AU 577641B2
- Authority
- AU
- Australia
- Prior art keywords
- subroutine
- signal
- residual signal
- samples
- pitch
- 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.)
- Ceased
Links
- 230000005540 biological transmission Effects 0.000 claims description 50
- 238000013139 quantization Methods 0.000 claims description 31
- 238000004458 analytical method Methods 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 238000003786 synthesis reaction Methods 0.000 claims description 14
- 238000005311 autocorrelation function Methods 0.000 claims description 12
- 230000001172 regenerating effect Effects 0.000 claims description 11
- 230000005284 excitation Effects 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 239000000872 buffer Substances 0.000 description 21
- 230000006870 function Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 230000001755 vocal effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 5
- 238000010606 normalization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000013523 data management Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 208000030979 Language Development disease Diseases 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001373 regressive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001228 spectrum 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computational Linguistics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Cash Registers Or Receiving Machines (AREA)
- Telephone Function (AREA)
- Input From Keyboards Or The Like (AREA)
- Silicon Polymers (AREA)
- Stereo-Broadcasting Methods (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66744684A | 1984-11-02 | 1984-11-02 | |
| US667446 | 1984-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5019885A AU5019885A (en) | 1986-05-15 |
| AU577641B2 true AU577641B2 (en) | 1988-09-29 |
Family
ID=24678262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU50198/85A Ceased AU577641B2 (en) | 1984-11-02 | 1985-11-01 | Relp vocoder implemented in digital signal processors |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0203940A4 (ja) |
| JP (1) | JPS63500896A (ja) |
| AU (1) | AU577641B2 (ja) |
| CA (1) | CA1240396A (ja) |
| DK (1) | DK311386D0 (ja) |
| NO (1) | NO862602L (ja) |
| WO (1) | WO1986002726A1 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| JP2626223B2 (ja) * | 1990-09-26 | 1997-07-02 | 日本電気株式会社 | 音声符号化装置 |
| US6006174A (en) | 1990-10-03 | 1999-12-21 | Interdigital Technology Coporation | Multiple impulse excitation speech encoder and decoder |
| US5235670A (en) * | 1990-10-03 | 1993-08-10 | Interdigital Patents Corporation | Multiple impulse excitation speech encoder and decoder |
| US5546383A (en) | 1993-09-30 | 1996-08-13 | Cooley; David M. | Modularly clustered radiotelephone system |
| ES2143396B1 (es) * | 1998-02-04 | 2000-12-16 | Univ Malaga | Circuito integrado monolitico codec-encriptador de baja tasa para señales de voz. |
| US7907977B2 (en) | 2007-10-02 | 2011-03-15 | Agere Systems Inc. | Echo canceller with correlation using pre-whitened data values received by downlink codec |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3431362A (en) * | 1966-04-22 | 1969-03-04 | Bell Telephone Labor Inc | Voice-excited,bandwidth reduction system employing pitch frequency pulses generated by unencoded baseband signal |
| US3750024A (en) * | 1971-06-16 | 1973-07-31 | Itt Corp Nutley | Narrow band digital speech communication system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2102254B (en) * | 1981-05-11 | 1985-08-07 | Kokusai Denshin Denwa Co Ltd | A speech analysis-synthesis system |
-
1985
- 1985-11-01 JP JP60505057A patent/JPS63500896A/ja active Pending
- 1985-11-01 AU AU50198/85A patent/AU577641B2/en not_active Ceased
- 1985-11-01 EP EP19850905709 patent/EP0203940A4/en not_active Withdrawn
- 1985-11-01 WO PCT/US1985/002168 patent/WO1986002726A1/en not_active Ceased
- 1985-11-01 CA CA000494448A patent/CA1240396A/en not_active Expired
-
1986
- 1986-06-27 NO NO86862602A patent/NO862602L/no unknown
- 1986-06-30 DK DK311386A patent/DK311386D0/da not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3431362A (en) * | 1966-04-22 | 1969-03-04 | Bell Telephone Labor Inc | Voice-excited,bandwidth reduction system employing pitch frequency pulses generated by unencoded baseband signal |
| US3750024A (en) * | 1971-06-16 | 1973-07-31 | Itt Corp Nutley | Narrow band digital speech communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| DK311386A (da) | 1986-06-30 |
| NO862602D0 (no) | 1986-06-27 |
| EP0203940A1 (en) | 1986-12-10 |
| NO862602L (no) | 1986-09-01 |
| DK311386D0 (da) | 1986-06-30 |
| WO1986002726A1 (en) | 1986-05-09 |
| JPS63500896A (ja) | 1988-03-31 |
| AU5019885A (en) | 1986-05-15 |
| CA1240396A (en) | 1988-08-09 |
| EP0203940A4 (en) | 1987-04-07 |
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