DE69127339D1 - Method and device for coding and decoding a sampled analog signal with repetition properties - Google Patents
Method and device for coding and decoding a sampled analog signal with repetition propertiesInfo
- Publication number
- DE69127339D1 DE69127339D1 DE69127339T DE69127339T DE69127339D1 DE 69127339 D1 DE69127339 D1 DE 69127339D1 DE 69127339 T DE69127339 T DE 69127339T DE 69127339 T DE69127339 T DE 69127339T DE 69127339 D1 DE69127339 D1 DE 69127339D1
- Authority
- DE
- Germany
- Prior art keywords
- components
- decoding
- coding
- analog signal
- stp
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000001228 spectrum Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 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)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Analogue/Digital Conversion (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
Frequency components are calculated from the STP-filtered speech signal. The amplitudes of these are combined in a manner such that the resultant values are associated with frequencies which are situated equidistantly on a linear Bark scale. Said components are quantised, possibly after scaling. In the decoder, the components are again distributed over the frequency spectrum. In the coder, the fundamental regularity D is determined with an LTP technique, after which it is transmitted. In the decoder the phases of the reconstructed signal at the spacing D in the past are determined. These phases are combined with the amplitudes already present in the frequency spectrum, after which transformation back to the time domain takes place. Inverse STP filtering is then carried out.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9002308A NL9002308A (en) | 1990-10-23 | 1990-10-23 | METHOD FOR CODING AND DECODING A SAMPLED ANALOGUE SIGNAL WITH A REPEATING CHARACTER AND AN APPARATUS FOR CODING AND DECODING ACCORDING TO THIS METHOD |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69127339D1 true DE69127339D1 (en) | 1997-09-25 |
DE69127339T2 DE69127339T2 (en) | 1998-01-29 |
Family
ID=19857866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69127339T Expired - Lifetime DE69127339T2 (en) | 1990-10-23 | 1991-10-16 | Method and device for coding and decoding a sampled analog signal with repetition properties |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0482699B1 (en) |
JP (1) | JP2958726B2 (en) |
AT (1) | ATE157188T1 (en) |
CA (1) | CA2053133C (en) |
DE (1) | DE69127339T2 (en) |
DK (1) | DK0482699T3 (en) |
ES (1) | ES2106051T3 (en) |
FI (1) | FI105623B (en) |
NL (1) | NL9002308A (en) |
NO (1) | NO305188B1 (en) |
PT (1) | PT99294A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114519996A (en) * | 2022-04-20 | 2022-05-20 | 北京远鉴信息技术有限公司 | Method, device and equipment for determining voice synthesis type and storage medium |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07261797A (en) * | 1994-03-18 | 1995-10-13 | Mitsubishi Electric Corp | Signal encoding device and signal decoding device |
JPH09127995A (en) * | 1995-10-26 | 1997-05-16 | Sony Corp | Signal decoding method and signal decoder |
JP2000165251A (en) * | 1998-11-27 | 2000-06-16 | Matsushita Electric Ind Co Ltd | Audio signal coding device and microphone realizing the same |
FI116992B (en) | 1999-07-05 | 2006-04-28 | Nokia Corp | Methods, systems, and devices for enhancing audio coding and transmission |
EP1113432B1 (en) * | 1999-12-24 | 2011-03-30 | International Business Machines Corporation | Method and system for detecting identical digital data |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5650398A (en) * | 1979-10-01 | 1981-05-07 | Hitachi Ltd | Sound synthesizer |
US4742550A (en) * | 1984-09-17 | 1988-05-03 | Motorola, Inc. | 4800 BPS interoperable relp system |
JP2892462B2 (en) * | 1990-08-27 | 1999-05-17 | 沖電気工業株式会社 | Code-excited linear predictive encoder |
-
1990
- 1990-10-23 NL NL9002308A patent/NL9002308A/en not_active Application Discontinuation
-
1991
- 1991-10-10 CA CA002053133A patent/CA2053133C/en not_active Expired - Lifetime
- 1991-10-16 ES ES91202675T patent/ES2106051T3/en not_active Expired - Lifetime
- 1991-10-16 EP EP91202675A patent/EP0482699B1/en not_active Expired - Lifetime
- 1991-10-16 DK DK91202675.4T patent/DK0482699T3/en active
- 1991-10-16 DE DE69127339T patent/DE69127339T2/en not_active Expired - Lifetime
- 1991-10-16 AT AT91202675T patent/ATE157188T1/en not_active IP Right Cessation
- 1991-10-17 JP JP3332967A patent/JP2958726B2/en not_active Expired - Lifetime
- 1991-10-18 NO NO914105A patent/NO305188B1/en not_active IP Right Cessation
- 1991-10-22 PT PT99294A patent/PT99294A/en not_active Application Discontinuation
- 1991-10-23 FI FI914993A patent/FI105623B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114519996A (en) * | 2022-04-20 | 2022-05-20 | 北京远鉴信息技术有限公司 | Method, device and equipment for determining voice synthesis type and storage medium |
Also Published As
Publication number | Publication date |
---|---|
JPH05268098A (en) | 1993-10-15 |
NO914105D0 (en) | 1991-10-18 |
NL9002308A (en) | 1992-05-18 |
EP0482699B1 (en) | 1997-08-20 |
JP2958726B2 (en) | 1999-10-06 |
FI914993A0 (en) | 1991-10-23 |
ES2106051T3 (en) | 1997-11-01 |
CA2053133C (en) | 1996-05-21 |
FI105623B (en) | 2000-09-15 |
EP0482699A3 (en) | 1992-08-19 |
DK0482699T3 (en) | 1998-03-30 |
NO914105L (en) | 1992-04-24 |
NO305188B1 (en) | 1999-04-12 |
CA2053133A1 (en) | 1992-04-24 |
PT99294A (en) | 1994-01-31 |
ATE157188T1 (en) | 1997-09-15 |
DE69127339T2 (en) | 1998-01-29 |
FI914993A (en) | 1992-04-24 |
EP0482699A2 (en) | 1992-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69606139D1 (en) | METHOD AND DEVICE FOR NOISE REDUCTION IN COMPRESSED IMAGE DATA | |
ATE206252T1 (en) | METHOD AND DEVICE FOR CODING AUDIO SIGNALS AND METHOD AND DEVICE FOR DECODING A BIT STREAM | |
DE59800189D1 (en) | METHOD FOR SIGNALING NOISE SUBSTITUTION WHEN CODING AN AUDIO SIGNAL | |
ATE449406T1 (en) | METHOD AND APPARATUS FOR DECODING A SIGNAL USING SPECTRAL BAND REPLICATION AND INTERPOLATION OF SCALE FACTORS | |
DE50000306D1 (en) | METHOD AND DEVICE FOR HIDDEN AN ERROR IN A CODED AUDIO SIGNAL AND METHOD AND DEVICE FOR DECODING A CODED AUDIO SIGNAL | |
DE69708697D1 (en) | Method for generating a vector quantization codebook, and apparatus and method for speech coding / decoding | |
DE50204426D1 (en) | APPARATUS AND METHOD FOR CODING A TIME DISCERNING AUDIO SIGNAL AND DEVICE AND METHOD FOR DECODING CODED AUDIO DATA | |
HK1073525A1 (en) | Audio decoding apparatus and audio decoding method | |
JPH02308632A (en) | Method for transmitting or storing audio signal | |
BR0014642A (en) | Spectral envelope encoding using variable time-frequency resolution and time-frequency change | |
DE69127339D1 (en) | Method and device for coding and decoding a sampled analog signal with repetition properties | |
DE69702261T2 (en) | LANGUAGE CODING | |
ATE168809T1 (en) | METHOD AND DEVICE FOR CODING/DECODING BACKGROUND NOISE | |
DE69030475D1 (en) | Method and device for converting an analog input signal into control codes and for synthesizing a corresponding output signal under the control of these codes | |
Quatieri et al. | Mixed-phase deconvolution of speech based on a sine-wave model | |
DE68918846D1 (en) | METHOD AND DEVICE FOR ENCODING ELECTRICAL SIGNALS. | |
CA2026640A1 (en) | Speech analysis-synthesis method and apparatus therefor | |
DE59700044D1 (en) | METHOD FOR CODING AN AUDIO SIGNAL DIGITALIZED WITH A LOW SCAN | |
Chong et al. | Use of the pitch synchronous wavelet transform as a new decomposition method for WI | |
Chong et al. | Low delay multi-level decomposition and quantisation techniques for WI coding | |
Cheetham et al. | All-pass excitation phase modelling for low bit-rate speech coding | |
DE60023366D1 (en) | Method and device for the reconstruction of an excitation signal for a linear-predictive filter | |
McAulay et al. | Sinewave amplitude coding using line spectral frequencies | |
Nakhai et al. | A 4.1 kb/s hybrid speech coder | |
Black et al. | High quality 14.1 kb/s wideband speech coder. |
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: KONINKLIJKE KPN N.V., GRONINGEN, NL |