FI954620A - Menetelmä ja laite äänenlaadun huononemisen lieventämiseksi viestintäjärjestelmässä - Google Patents
Menetelmä ja laite äänenlaadun huononemisen lieventämiseksi viestintäjärjestelmässä Download PDFInfo
- Publication number
- FI954620A FI954620A FI954620A FI954620A FI954620A FI 954620 A FI954620 A FI 954620A FI 954620 A FI954620 A FI 954620A FI 954620 A FI954620 A FI 954620A FI 954620 A FI954620 A FI 954620A
- Authority
- FI
- Finland
- Prior art keywords
- deterioration
- preventing
- communication system
- sound quality
- sound
- Prior art date
Links
- 230000006866 deterioration Effects 0.000 title 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Telephonic Communication Services (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/197,908 US6134521A (en) | 1994-02-17 | 1994-02-17 | Method and apparatus for mitigating audio degradation in a communication system |
US19790894 | 1994-02-17 | ||
PCT/US1994/014751 WO1995022817A1 (en) | 1994-02-17 | 1994-12-22 | Method and apparatus for mitigating audio degradation in a communication system |
US9414751 | 1994-12-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI954620A0 FI954620A0 (fi) | 1995-09-28 |
FI954620A true FI954620A (fi) | 1995-09-28 |
FI118703B FI118703B (fi) | 2008-02-15 |
Family
ID=22731227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI954620A FI118703B (fi) | 1994-02-17 | 1995-09-28 | Menetelmä ja laite äänenlaadun huononemisen lieventämiseksi viestintäjärjestelmässä |
Country Status (10)
Country | Link |
---|---|
US (1) | US6134521A (fi) |
EP (1) | EP0698268B1 (fi) |
JP (1) | JPH08509347A (fi) |
KR (1) | KR0174780B1 (fi) |
CN (1) | CN1122968C (fi) |
CA (1) | CA2156639C (fi) |
DE (1) | DE69431520T2 (fi) |
FI (1) | FI118703B (fi) |
IL (1) | IL112164A (fi) |
WO (1) | WO1995022817A1 (fi) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI101439B1 (fi) * | 1995-04-13 | 1998-06-15 | Nokia Telecommunications Oy | Transkooderi, jossa on tandem-koodauksen esto |
US6516466B1 (en) * | 1996-05-02 | 2003-02-04 | Vincent C. Jackson | Method and apparatus for portable digital entertainment system |
JP3195264B2 (ja) * | 1997-01-21 | 2001-08-06 | 株式会社東芝 | ディジタル無線通信機 |
US6069888A (en) * | 1997-02-26 | 2000-05-30 | Qualcomm Inc. | Integrated voice mail system for CDMA network |
US6363339B1 (en) * | 1997-10-10 | 2002-03-26 | Nortel Networks Limited | Dynamic vocoder selection for storing and forwarding voice signals |
US7076316B2 (en) * | 2001-02-02 | 2006-07-11 | Nortel Networks Limited | Method and apparatus for controlling an operative setting of a communications link |
US20050107071A1 (en) * | 2003-11-17 | 2005-05-19 | Benco David S. | Method and apparatus for a network-based voice memo feature |
DE102005005561A1 (de) * | 2005-02-07 | 2006-08-10 | Siemens Ag | Verfahren zur Übertragung von Sprachsignalen, zugehöriges Kommunikationssystem sowie zugehörige Netzwerkeinheit |
US8917833B1 (en) * | 2005-03-21 | 2014-12-23 | At&T Intellectual Property Ii, L.P. | System and method for non-privacy invasive conversation information recording implemented in a mobile phone device |
TWI618051B (zh) * | 2013-02-14 | 2018-03-11 | 杜比實驗室特許公司 | 用於利用估計之空間參數的音頻訊號增強的音頻訊號處理方法及裝置 |
CN114495951A (zh) * | 2020-11-11 | 2022-05-13 | 华为技术有限公司 | 音频编解码方法和装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5857758B2 (ja) * | 1979-09-28 | 1983-12-21 | 株式会社日立製作所 | 音声ピッチ周期抽出装置 |
US4455649A (en) * | 1982-01-15 | 1984-06-19 | International Business Machines Corporation | Method and apparatus for efficient statistical multiplexing of voice and data signals |
EP0085820B1 (fr) * | 1982-02-09 | 1985-11-21 | International Business Machines Corporation | Procédé de transmission numérique multi-vitesses et dispositif de mise en oeuvre dudit procédé |
DE3270212D1 (en) * | 1982-04-30 | 1986-05-07 | Ibm | Digital coding method and device for carrying out the method |
US4696040A (en) * | 1983-10-13 | 1987-09-22 | Texas Instruments Incorporated | Speech analysis/synthesis system with energy normalization and silence suppression |
GB8613327D0 (en) * | 1986-06-02 | 1986-07-09 | British Telecomm | Speech processor |
IT1195350B (it) * | 1986-10-21 | 1988-10-12 | Cselt Centro Studi Lab Telecom | Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante estrazione di para metri e tecniche di quantizzazione vettoriale |
EP0331858B1 (en) * | 1988-03-08 | 1993-08-25 | International Business Machines Corporation | Multi-rate voice encoding method and device |
DE68911287T2 (de) * | 1988-06-08 | 1994-05-05 | Fujitsu Ltd | Codierer/decodierer. |
CA2020084C (en) * | 1989-06-29 | 1994-10-18 | Kohei Iseda | Voice coding/decoding system having selected coders and entropy coders |
JPH0398318A (ja) * | 1989-09-11 | 1991-04-23 | Fujitsu Ltd | 音声符号化方式 |
EP0459363B1 (en) * | 1990-05-28 | 1997-08-06 | Matsushita Electric Industrial Co., Ltd. | Voice signal coding system |
US5115429A (en) * | 1990-08-02 | 1992-05-19 | Codex Corporation | Dynamic encoding rate control minimizes traffic congestion in a packet network |
US5317672A (en) * | 1991-03-05 | 1994-05-31 | Picturetel Corporation | Variable bit rate speech encoder |
US5371853A (en) * | 1991-10-28 | 1994-12-06 | University Of Maryland At College Park | Method and system for CELP speech coding and codebook for use therewith |
US5307460A (en) * | 1992-02-14 | 1994-04-26 | Hughes Aircraft Company | Method and apparatus for determining the excitation signal in VSELP coders |
DE4231918C1 (de) * | 1992-09-24 | 1993-12-02 | Ant Nachrichtentech | Verfahren für die Codierung von Sprachsignalen |
-
1994
- 1994-02-17 US US08/197,908 patent/US6134521A/en not_active Expired - Lifetime
- 1994-12-22 CN CN94191799A patent/CN1122968C/zh not_active Expired - Lifetime
- 1994-12-22 JP JP7521781A patent/JPH08509347A/ja active Pending
- 1994-12-22 CA CA002156639A patent/CA2156639C/en not_active Expired - Lifetime
- 1994-12-22 WO PCT/US1994/014751 patent/WO1995022817A1/en active IP Right Grant
- 1994-12-22 DE DE69431520T patent/DE69431520T2/de not_active Expired - Fee Related
- 1994-12-22 KR KR1019950704516A patent/KR0174780B1/ko not_active IP Right Cessation
- 1994-12-22 EP EP95906681A patent/EP0698268B1/en not_active Expired - Lifetime
- 1994-12-27 IL IL112164A patent/IL112164A/en not_active IP Right Cessation
-
1995
- 1995-09-28 FI FI954620A patent/FI118703B/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1121374A (zh) | 1996-04-24 |
KR960702143A (ko) | 1996-03-28 |
JPH08509347A (ja) | 1996-10-01 |
US6134521A (en) | 2000-10-17 |
FI118703B (fi) | 2008-02-15 |
EP0698268A1 (en) | 1996-02-28 |
KR0174780B1 (ko) | 1999-04-01 |
CA2156639A1 (en) | 1995-08-24 |
FI954620A0 (fi) | 1995-09-28 |
WO1995022817A1 (en) | 1995-08-24 |
CN1122968C (zh) | 2003-10-01 |
EP0698268B1 (en) | 2002-10-09 |
DE69431520T2 (de) | 2003-02-20 |
DE69431520D1 (de) | 2002-11-14 |
IL112164A (en) | 1998-04-05 |
IL112164A0 (en) | 1995-03-15 |
CA2156639C (en) | 2000-06-27 |
EP0698268A4 (en) | 1998-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Ref document number: 118703 Country of ref document: FI |
|
PC | Transfer of assignment of patent |
Owner name: MOTOROLA MOBILITY, INC. Free format text: MOTOROLA MOBILITY, INC. |
|
MA | Patent expired |