CA2376816A1 - Speech switching apparatus - Google Patents
Speech switching apparatus Download PDFInfo
- Publication number
- CA2376816A1 CA2376816A1 CA002376816A CA2376816A CA2376816A1 CA 2376816 A1 CA2376816 A1 CA 2376816A1 CA 002376816 A CA002376816 A CA 002376816A CA 2376816 A CA2376816 A CA 2376816A CA 2376816 A1 CA2376816 A1 CA 2376816A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- circuit
- signals
- switching
- speech
- 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.)
- Abandoned
Links
- 238000005070 sampling Methods 0.000 claims abstract description 142
- 238000006243 chemical reaction Methods 0.000 claims description 77
- 230000005236 sound signal Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000011295 pitch Substances 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- 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
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
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)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11164665A JP2000352999A (ja) | 1999-06-11 | 1999-06-11 | 音声切替装置 |
JP11/164665 | 1999-06-11 | ||
PCT/JP2000/003230 WO2000077775A1 (fr) | 1999-06-11 | 2000-05-19 | Dispositif de commutation sonore |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2376816A1 true CA2376816A1 (en) | 2000-12-21 |
Family
ID=15797504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002376816A Abandoned CA2376816A1 (en) | 1999-06-11 | 2000-05-19 | Speech switching apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1204095A4 (de) |
JP (1) | JP2000352999A (de) |
AU (1) | AU773996B2 (de) |
CA (1) | CA2376816A1 (de) |
WO (1) | WO2000077775A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU773996B2 (en) * | 1999-06-11 | 2004-06-10 | Nec Corporation | Sound switching device |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4733939B2 (ja) | 2004-01-08 | 2011-07-27 | パナソニック株式会社 | 信号復号化装置及び信号復号化方法 |
EP2107557A3 (de) | 2005-01-14 | 2010-08-25 | Panasonic Corporation | Audioumschaltungsvorrichtung und Audioumschaltungsverfahren |
JP5100380B2 (ja) | 2005-06-29 | 2012-12-19 | パナソニック株式会社 | スケーラブル復号装置および消失データ補間方法 |
JP4560015B2 (ja) * | 2005-07-29 | 2010-10-13 | パナソニック株式会社 | 復号化装置 |
US7742913B2 (en) * | 2005-10-24 | 2010-06-22 | Lg Electronics Inc. | Removing time delays in signal paths |
JP2008244775A (ja) * | 2007-03-27 | 2008-10-09 | Rohm Co Ltd | オーディオ回路およびそれを備える電子機器 |
ES2530957T3 (es) * | 2010-10-06 | 2015-03-09 | Fraunhofer Ges Forschung | Aparato y método para procesar una señal de audio y para proporcionar una mayor granularidad temporal para un códec de voz y de audio unificado combinado (USAC) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2592810B2 (ja) * | 1986-09-30 | 1997-03-19 | 株式会社東芝 | サンプルレート変換回路 |
JP2600237B2 (ja) * | 1987-12-29 | 1997-04-16 | ソニー株式会社 | サンプリング周波数変換回路 |
JPH0675586A (ja) * | 1992-07-08 | 1994-03-18 | Seikosha Co Ltd | 音響信号発生回路 |
JPH0758709A (ja) * | 1993-08-09 | 1995-03-03 | Canon Inc | 音響通信装置 |
JP3134817B2 (ja) * | 1997-07-11 | 2001-02-13 | 日本電気株式会社 | 音声符号化復号装置 |
JP2000352999A (ja) * | 1999-06-11 | 2000-12-19 | Nec Corp | 音声切替装置 |
-
1999
- 1999-06-11 JP JP11164665A patent/JP2000352999A/ja active Pending
-
2000
- 2000-05-19 EP EP00929812A patent/EP1204095A4/de not_active Withdrawn
- 2000-05-19 AU AU47789/00A patent/AU773996B2/en not_active Ceased
- 2000-05-19 WO PCT/JP2000/003230 patent/WO2000077775A1/ja not_active Application Discontinuation
- 2000-05-19 CA CA002376816A patent/CA2376816A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU773996B2 (en) * | 1999-06-11 | 2004-06-10 | Nec Corporation | Sound switching device |
Also Published As
Publication number | Publication date |
---|---|
AU4778900A (en) | 2001-01-02 |
WO2000077775A1 (fr) | 2000-12-21 |
EP1204095A4 (de) | 2005-08-17 |
JP2000352999A (ja) | 2000-12-19 |
EP1204095A1 (de) | 2002-05-08 |
AU773996B2 (en) | 2004-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |