ES409984A1 - Sistema de transmision de voz empleando tecnicas digitales. - Google Patents
Sistema de transmision de voz empleando tecnicas digitales.Info
- Publication number
- ES409984A1 ES409984A1 ES409984A ES409984A ES409984A1 ES 409984 A1 ES409984 A1 ES 409984A1 ES 409984 A ES409984 A ES 409984A ES 409984 A ES409984 A ES 409984A ES 409984 A1 ES409984 A1 ES 409984A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- filter
- elements
- excitation
- information
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
-
- 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
-
- 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)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5993271A GB1356649A (en) | 1971-12-23 | 1971-12-23 | Speech transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES409984A1 true ES409984A1 (es) | 1976-01-01 |
Family
ID=10484681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES409984A Expired ES409984A1 (es) | 1971-12-23 | 1972-12-22 | Sistema de transmision de voz empleando tecnicas digitales. |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES409984A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2164813B3 (enrdf_load_stackoverflow) |
| GB (1) | GB1356649A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130055B (en) * | 1982-11-05 | 1986-08-06 | Stc Plc | A digital speech transmission system |
-
1971
- 1971-12-23 GB GB5993271A patent/GB1356649A/en not_active Expired
-
1972
- 1972-12-21 FR FR7245703A patent/FR2164813B3/fr not_active Expired
- 1972-12-22 ES ES409984A patent/ES409984A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2164813B3 (enrdf_load_stackoverflow) | 1976-02-13 |
| GB1356649A (en) | 1974-06-12 |
| FR2164813A1 (enrdf_load_stackoverflow) | 1973-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR950014622B1 (ko) | 입력 신호처리 방법 | |
| DK0610975T3 (da) | Transformationskoder, dekoder og koder/dekoder for højkvalitets audio og med lav tidsforsinkelse | |
| JPS5557900A (en) | Speech signal processing circuit | |
| CA2024742A1 (en) | Speech coding apparatus using multimode coding | |
| SE9500452D0 (sv) | Method and apparatus in coding digital information | |
| DE68913691D1 (de) | System zur Sprachcodierung und -decodierung. | |
| DE3789426D1 (de) | Digitale Schaltungsanordnung zur Verringerung des Quantisierungsrauschens. | |
| ES409984A1 (es) | Sistema de transmision de voz empleando tecnicas digitales. | |
| ATE154996T1 (de) | System zur vermeidung der erzeugung unerwünschter symbole durch einem verwürfler | |
| JPS51114009A (en) | Digital audio signal transmitter | |
| FR2160030A5 (enrdf_load_stackoverflow) | ||
| EP0384544A3 (en) | Analog-to-digital encoder and digital-to-analog decoder | |
| JPS55122208A (en) | Sound recording and reproducing system | |
| AU561497B2 (en) | Differential pcm transmission | |
| CA2019801A1 (en) | System for speech coding and an apparatus for the same | |
| ES405791A1 (es) | Aparato de tratamiento para senales electricas, tales como las que representan los sonidos codificados audibles de la palabra o parecidos. | |
| ES401344A1 (es) | Sistema de transmision de conversacion. | |
| JPS55143875A (en) | Facsimile signal redundancy suppression coding system | |
| JPS5286709A (en) | Companding estimate code decoding circuit | |
| JPS5755660A (en) | Voice and data separating circuit | |
| GB1011634A (en) | Improvements in or relating to speech transmission systems | |
| JPS6442940A (en) | Adaptive differential coding and decoding device | |
| JPS5789312A (en) | Muting circuit | |
| JPS57111152A (en) | Encoding device for privacy communication | |
| JPS6449489A (en) | Transmission equipment for tree search vector quantized image |