CH680030A5 - - Google Patents
Download PDFInfo
- Publication number
- CH680030A5 CH680030A5 CH95690A CH95690A CH680030A5 CH 680030 A5 CH680030 A5 CH 680030A5 CH 95690 A CH95690 A CH 95690A CH 95690 A CH95690 A CH 95690A CH 680030 A5 CH680030 A5 CH 680030A5
- Authority
- CH
- Switzerland
- Prior art keywords
- segments
- signal
- filter
- speech
- adaptive
- Prior art date
Links
- 238000013139 quantization Methods 0.000 claims description 40
- 230000003044 adaptive effect Effects 0.000 claims description 32
- 238000004364 calculation method Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 17
- 230000005284 excitation Effects 0.000 claims description 6
- 238000011045 prefiltration Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000008447 perception Effects 0.000 claims description 2
- 230000003313 weakening effect Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 18
- 238000001228 spectrum Methods 0.000 description 14
- 238000007493 shaping process Methods 0.000 description 11
- 230000003595 spectral effect Effects 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004422 calculation algorithm Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000003254 palate Anatomy 0.000 description 1
- 210000003800 pharynx Anatomy 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 210000005182 tip of the tongue Anatomy 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 210000001260 vocal cord Anatomy 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)
- 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)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH95690A CH680030A5 (da) | 1990-03-22 | 1990-03-22 | |
| FI911010A FI911010A (fi) | 1990-03-22 | 1991-02-28 | Foerfarande och anordning foer digitalisering av tal. |
| EP19910103907 EP0449043A3 (en) | 1990-03-22 | 1991-03-14 | Method and apparatus for speech digitizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH95690A CH680030A5 (da) | 1990-03-22 | 1990-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH680030A5 true CH680030A5 (da) | 1992-05-29 |
Family
ID=4199089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH95690A CH680030A5 (da) | 1990-03-22 | 1990-03-22 |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0449043A3 (da) |
| CH (1) | CH680030A5 (da) |
| FI (1) | FI911010A (da) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU671952B2 (en) * | 1991-06-11 | 1996-09-19 | Qualcomm Incorporated | Variable rate vocoder |
| FI964975A (fi) * | 1996-12-12 | 1998-06-13 | Nokia Mobile Phones Ltd | Menetelmä ja laite puheen koodaamiseksi |
-
1990
- 1990-03-22 CH CH95690A patent/CH680030A5/de not_active IP Right Cessation
-
1991
- 1991-02-28 FI FI911010A patent/FI911010A/fi not_active Application Discontinuation
- 1991-03-14 EP EP19910103907 patent/EP0449043A3/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FI911010A (fi) | 1991-09-23 |
| EP0449043A3 (en) | 1992-04-29 |
| EP0449043A2 (de) | 1991-10-02 |
| FI911010A0 (fi) | 1991-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NV | New agent |
Representative=s name: KELLER & PARTNER PATENTANWAELTE AG |
|
| PL | Patent ceased |