DE69229627T2 - Sprachkodierer mit veränderlicher bitrate - Google Patents
Sprachkodierer mit veränderlicher bitrateInfo
- Publication number
- DE69229627T2 DE69229627T2 DE69229627T DE69229627T DE69229627T2 DE 69229627 T2 DE69229627 T2 DE 69229627T2 DE 69229627 T DE69229627 T DE 69229627T DE 69229627 T DE69229627 T DE 69229627T DE 69229627 T2 DE69229627 T2 DE 69229627T2
- Authority
- DE
- Germany
- Prior art keywords
- voice encoder
- various bitrate
- various
- bitrate voice
- encoder
- 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
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
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66457991A | 1991-03-05 | 1991-03-05 | |
US66594891A | 1991-03-06 | 1991-03-06 | |
PCT/US1992/001844 WO1992015986A1 (en) | 1991-03-05 | 1992-03-04 | Variable bit rate speech encoder |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69229627D1 DE69229627D1 (de) | 1999-08-26 |
DE69229627T2 true DE69229627T2 (de) | 1999-12-02 |
Family
ID=27099005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69229627T Expired - Lifetime DE69229627T2 (de) | 1991-03-05 | 1992-03-04 | Sprachkodierer mit veränderlicher bitrate |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0574523B1 (de) |
JP (1) | JP3130934B2 (de) |
CA (1) | CA2105387A1 (de) |
DE (1) | DE69229627T2 (de) |
WO (1) | WO1992015986A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10052626A1 (de) * | 2000-10-24 | 2002-05-02 | Alcatel Sa | Adaptiver Geräuschpegelschätzer |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5450130A (en) * | 1994-03-30 | 1995-09-12 | Radius Inc. | Method and system for cell based image data compression |
US6707827B1 (en) | 1999-11-12 | 2004-03-16 | Siemens Information & Communication Networks, Inc. | Method and apparatus for optimizing audio response in telephony-over-LAN systems |
EP2226794B1 (de) * | 2009-03-06 | 2017-11-08 | Harman Becker Automotive Systems GmbH | Hintergrundgeräuschschätzung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4696040A (en) * | 1983-10-13 | 1987-09-22 | Texas Instruments Incorporated | Speech analysis/synthesis system with energy normalization and silence suppression |
GB8421498D0 (en) * | 1984-08-24 | 1984-09-26 | British Telecomm | Frequency domain speech coding |
ATE73591T1 (de) * | 1987-09-30 | 1992-03-15 | Thomson Brandt Gmbh | Verfahren zur uebertragung eines audio-signals. |
US4991213A (en) * | 1988-05-26 | 1991-02-05 | Pacific Communication Sciences, Inc. | Speech specific adaptive transform coder |
US4964166A (en) * | 1988-05-26 | 1990-10-16 | Pacific Communication Science, Inc. | Adaptive transform coder having minimal bit allocation processing |
US4965830A (en) * | 1989-01-17 | 1990-10-23 | Unisys Corp. | Apparatus for estimating distortion resulting from compressing digital data |
US5042069A (en) * | 1989-04-18 | 1991-08-20 | Pacific Communications Sciences, Inc. | Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals |
US5040217A (en) * | 1989-10-18 | 1991-08-13 | At&T Bell Laboratories | Perceptual coding of audio signals |
-
1992
- 1992-03-04 CA CA002105387A patent/CA2105387A1/en not_active Abandoned
- 1992-03-04 WO PCT/US1992/001844 patent/WO1992015986A1/en active IP Right Grant
- 1992-03-04 DE DE69229627T patent/DE69229627T2/de not_active Expired - Lifetime
- 1992-03-04 EP EP92908518A patent/EP0574523B1/de not_active Expired - Lifetime
- 1992-03-04 JP JP04508295A patent/JP3130934B2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10052626A1 (de) * | 2000-10-24 | 2002-05-02 | Alcatel Sa | Adaptiver Geräuschpegelschätzer |
Also Published As
Publication number | Publication date |
---|---|
EP0574523B1 (de) | 1999-07-21 |
EP0574523A1 (de) | 1993-12-22 |
CA2105387A1 (en) | 1992-09-06 |
EP0574523A4 (de) | 1995-03-01 |
DE69229627D1 (de) | 1999-08-26 |
WO1992015986A1 (en) | 1992-09-17 |
JPH06506330A (ja) | 1994-07-14 |
JP3130934B2 (ja) | 2001-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: POLYCOM, INC., MILPITAS, CALIF., US |