CA2228183C - Speech coder/decoder - Google Patents
Speech coder/decoder Download PDFInfo
- Publication number
- CA2228183C CA2228183C CA002228183A CA2228183A CA2228183C CA 2228183 C CA2228183 C CA 2228183C CA 002228183 A CA002228183 A CA 002228183A CA 2228183 A CA2228183 A CA 2228183A CA 2228183 C CA2228183 C CA 2228183C
- Authority
- CA
- Canada
- Prior art keywords
- speech
- basis
- signal
- coding
- linear prediction
- 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 - Lifetime
Links
- 230000005284 excitation Effects 0.000 claims abstract description 91
- 230000015572 biosynthetic process Effects 0.000 claims description 66
- 238000003786 synthesis reaction Methods 0.000 claims description 66
- 238000000034 method Methods 0.000 claims description 22
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 description 32
- 238000010586 diagram Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 238000013139 quantization Methods 0.000 description 4
- 230000002194 synthesizing effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- BSFODEXXVBBYOC-UHFFFAOYSA-N 8-[4-(dimethylamino)butan-2-ylamino]quinolin-6-ol Chemical compound C1=CN=C2C(NC(CCN(C)C)C)=CC(O)=CC2=C1 BSFODEXXVBBYOC-UHFFFAOYSA-N 0.000 description 1
- 102100034799 CCAAT/enhancer-binding protein delta Human genes 0.000 description 1
- 241000272470 Circus Species 0.000 description 1
- 101000945965 Homo sapiens CCAAT/enhancer-binding protein delta Proteins 0.000 description 1
- 235000000434 Melocanna baccifera Nutrition 0.000 description 1
- 241001497770 Melocanna baccifera Species 0.000 description 1
- BKAYIFDRRZZKNF-VIFPVBQESA-N N-acetylcarnosine Chemical compound CC(=O)NCCC(=O)N[C@H](C(O)=O)CC1=CN=CN1 BKAYIFDRRZZKNF-VIFPVBQESA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000013144 data compression Methods 0.000 description 1
- 208000023414 familial retinal arterial macroaneurysm Diseases 0.000 description 1
- 238000005070 sampling 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP012477/1997 | 1997-01-27 | ||
| JP01247797A JP3329216B2 (ja) | 1997-01-27 | 1997-01-27 | 音声符号化装置及び音声復号装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2228183A1 CA2228183A1 (en) | 1998-07-27 |
| CA2228183C true CA2228183C (en) | 2001-05-29 |
Family
ID=11806474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002228183A Expired - Lifetime CA2228183C (en) | 1997-01-27 | 1998-01-27 | Speech coder/decoder |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0855699B1 (de) |
| JP (1) | JP3329216B2 (de) |
| CA (1) | CA2228183C (de) |
| DE (1) | DE69823398T2 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3166697B2 (ja) | 1998-01-14 | 2001-05-14 | 日本電気株式会社 | 音声符号化・復号装置及びシステム |
| US6721280B1 (en) | 2000-04-19 | 2004-04-13 | Qualcomm Incorporated | Method and apparatus for voice latency reduction in a voice-over-data wireless communication system |
| JP3881943B2 (ja) * | 2002-09-06 | 2007-02-14 | 松下電器産業株式会社 | 音響符号化装置及び音響符号化方法 |
| WO2006085586A1 (ja) * | 2005-02-10 | 2006-08-17 | Matsushita Electric Industrial Co., Ltd. | 音声符号化におけるパルス割当方法 |
| KR101235425B1 (ko) * | 2005-03-09 | 2013-02-20 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 저-복잡성 코드 여기 선형 예측 인코딩 |
| US8000967B2 (en) | 2005-03-09 | 2011-08-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Low-complexity code excited linear prediction encoding |
| AU2018338424B2 (en) * | 2017-09-20 | 2023-03-02 | Voiceage Corporation | Method and device for efficiently distributing a bit-budget in a CELP codec |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5235669A (en) * | 1990-06-29 | 1993-08-10 | At&T Laboratories | Low-delay code-excited linear-predictive coding of wideband speech at 32 kbits/sec |
| IT1281001B1 (it) * | 1995-10-27 | 1998-02-11 | Cselt Centro Studi Lab Telecom | Procedimento e apparecchiatura per codificare, manipolare e decodificare segnali audio. |
-
1997
- 1997-01-27 JP JP01247797A patent/JP3329216B2/ja not_active Expired - Lifetime
-
1998
- 1998-01-27 EP EP98101335A patent/EP0855699B1/de not_active Expired - Lifetime
- 1998-01-27 DE DE1998623398 patent/DE69823398T2/de not_active Expired - Lifetime
- 1998-01-27 CA CA002228183A patent/CA2228183C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3329216B2 (ja) | 2002-09-30 |
| EP0855699A3 (de) | 1999-04-07 |
| EP0855699B1 (de) | 2004-04-28 |
| DE69823398T2 (de) | 2005-01-13 |
| EP0855699A2 (de) | 1998-07-29 |
| JPH10207496A (ja) | 1998-08-07 |
| DE69823398D1 (de) | 2004-06-03 |
| CA2228183A1 (en) | 1998-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20180129 |