DE361432T1 - METHOD AND DEVICE FOR CODING AND DECODING VOICE SIGNALS USING MULTIPULES EXCITATION. - Google Patents
METHOD AND DEVICE FOR CODING AND DECODING VOICE SIGNALS USING MULTIPULES EXCITATION.Info
- Publication number
- DE361432T1 DE361432T1 DE198989117837T DE89117837T DE361432T1 DE 361432 T1 DE361432 T1 DE 361432T1 DE 198989117837 T DE198989117837 T DE 198989117837T DE 89117837 T DE89117837 T DE 89117837T DE 361432 T1 DE361432 T1 DE 361432T1
- Authority
- DE
- Germany
- Prior art keywords
- coding
- excitation
- synthesis
- multipules
- voice signals
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 5
- 230000005284 excitation Effects 0.000 title abstract 4
- 238000003786 synthesis reaction Methods 0.000 abstract 4
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 230000007774 longterm Effects 0.000 abstract 2
- 238000001914 filtration Methods 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
- G10L19/08—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)
- Dc Digital Transmission (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
A coding-decoding method using a mulipulse analysis-by-synthesis excitation technique comprises, in the decoding phase, cascaded long-term and short-term synthesis filterings. The lag and gain of the long-term synthesis and the excitation pulses are determined during the coding phase within the analysis-by-synthesis procedure in two subsequent steps, in the first of which the lag and the gain are determined, while in the second the positions and the amplitudes of the excitation pulses are determined. The invention concerns also the device performing the method.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67868/88A IT1224453B (en) | 1988-09-28 | 1988-09-28 | PROCEDURE AND DEVICE FOR CODING DECODING OF VOICE SIGNALS WITH THE USE OF MULTIPLE PULSE EXCITATION |
Publications (1)
Publication Number | Publication Date |
---|---|
DE361432T1 true DE361432T1 (en) | 1991-03-21 |
Family
ID=11305936
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE198989117837T Pending DE361432T1 (en) | 1988-09-28 | 1989-09-27 | METHOD AND DEVICE FOR CODING AND DECODING VOICE SIGNALS USING MULTIPULES EXCITATION. |
DE68917552T Expired - Fee Related DE68917552T2 (en) | 1988-09-28 | 1989-09-27 | Method and device for coding and decoding speech signals using multipulse excitation. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68917552T Expired - Fee Related DE68917552T2 (en) | 1988-09-28 | 1989-09-27 | Method and device for coding and decoding speech signals using multipulse excitation. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0361432B1 (en) |
AT (1) | ATE110180T1 (en) |
DE (2) | DE361432T1 (en) |
ES (1) | ES2017906T3 (en) |
GR (1) | GR900300170T1 (en) |
IT (1) | IT1224453B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69232887T2 (en) * | 1991-02-26 | 2003-06-05 | Nec Corp | Speech coding method |
FI98104C (en) * | 1991-05-20 | 1997-04-10 | Nokia Mobile Phones Ltd | Procedures for generating an excitation vector and digital speech encoder |
ES2042410B1 (en) * | 1992-04-15 | 1997-01-01 | Control Sys S A | ENCODING METHOD AND VOICE ENCODER FOR EQUIPMENT AND COMMUNICATION SYSTEMS. |
FI95086C (en) * | 1992-11-26 | 1995-12-11 | Nokia Mobile Phones Ltd | Method for efficient coding of a speech signal |
FI96248C (en) * | 1993-05-06 | 1996-05-27 | Nokia Mobile Phones Ltd | Method for providing a synthetic filter for long-term interval and synthesis filter for speech coder |
GB9408037D0 (en) * | 1994-04-22 | 1994-06-15 | Philips Electronics Uk Ltd | Analogue signal coder |
-
1988
- 1988-09-28 IT IT67868/88A patent/IT1224453B/en active
-
1989
- 1989-09-27 DE DE198989117837T patent/DE361432T1/en active Pending
- 1989-09-27 EP EP89117837A patent/EP0361432B1/en not_active Expired - Lifetime
- 1989-09-27 ES ES89117837T patent/ES2017906T3/en not_active Expired - Lifetime
- 1989-09-27 AT AT89117837T patent/ATE110180T1/en active
- 1989-09-27 DE DE68917552T patent/DE68917552T2/en not_active Expired - Fee Related
-
1991
- 1991-09-27 GR GR90300170T patent/GR900300170T1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE68917552D1 (en) | 1994-09-22 |
DE68917552T2 (en) | 1995-01-12 |
ES2017906A4 (en) | 1991-03-16 |
ATE110180T1 (en) | 1994-09-15 |
EP0361432B1 (en) | 1994-08-17 |
ES2017906T3 (en) | 1994-10-16 |
IT8867868A0 (en) | 1988-09-28 |
GR900300170T1 (en) | 1991-09-27 |
IT1224453B (en) | 1990-10-04 |
EP0361432A2 (en) | 1990-04-04 |
EP0361432A3 (en) | 1990-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE58903874D1 (en) | INTEGRAL ASYMMETRICAL POLYAETHERSULPHONE MEMBRANE, METHOD FOR THE PRODUCTION AND USE FOR ULTRAFILTRATION AND MICROFILTRATION. | |
DE3771839D1 (en) | METHOD AND DEVICE FOR CODING AND DECODING VOICE SIGNALS BY PARAMETER EXTRACTION AND VECTOR QUANTIZATION. | |
DE68900758D1 (en) | METHOD FOR PRODUCING COMPOSED CHEESE. | |
DE3871369D1 (en) | METHOD AND DEVICE FOR SPEECH ENCODING WITH LOW DATA RATE. | |
DE69204850T2 (en) | METHOD FOR PRODUCING UNIFORMED ZEOLITE CRYSTALS OF THE MFI TYPE. | |
DE69001968D1 (en) | METHOD FOR PRODUCING HYDROGEN PEROXIDE. | |
DE68907258D1 (en) | METHOD FOR PRODUCING PERFLUORED COPOLYMERS. | |
ATE131876T1 (en) | METHOD FOR PRODUCING PROTEINS BY USING CKS FUSION PROTEINS | |
DE69017074T2 (en) | Method and device for coding audio signals. | |
DE68900949D1 (en) | METHOD FOR SEPARATING HYDROGEN TREATMENT DRAINS. | |
DE3785824D1 (en) | METHOD AND DEVICE FOR ADJUSTING THE PRESSURE WITH THE USE OF GAS DIFFUSION MEMBRANES. | |
DE68905403T2 (en) | METHOD FOR REDUCING THE TURBET POINT OF MATERIALS USING AN ULTRAFILTRATION SEPARATION PROCESS. | |
DE361432T1 (en) | METHOD AND DEVICE FOR CODING AND DECODING VOICE SIGNALS USING MULTIPULES EXCITATION. | |
DE68905688T2 (en) | METHOD FOR PRODUCING COMPOSED METAL PARTS. | |
ATE85030T1 (en) | METHOD FOR PRODUCING HYDROGEN PEROXIDE. | |
DE3670712D1 (en) | LOW BIT RATE SPEECH CODING METHOD USING A MULTI-PULSE EXCITATION SIGNAL. | |
DE3777516D1 (en) | METHOD FOR PRODUCING CARBON DIOXIDE AND HYDROGEN. | |
DE58900080D1 (en) | METHOD FOR PRODUCING HYDROXYLAMMONIUM SALTS. | |
DE58905117D1 (en) | METHOD FOR PRODUCING 4-CHLORINE-2,5-DIMETHOXYANILINE. | |
DE3851887D1 (en) | Low bit rate speech coding method and apparatus. | |
DE58902835D1 (en) | METHOD FOR PRODUCING SPARKLING WINE. | |
DE68903464D1 (en) | METHOD FOR PRODUCING CHEESE. | |
DE3689135D1 (en) | Procedure for applying reverse osmosis. | |
DE3875037T2 (en) | METHOD FOR THE FAST SYNCHRONIZATION OF VOCODERS, WHICH ARE CONNECTED BY MEANS OF ENCRYPTION AND DECRYLING DEVICES. | |
DE69014156D1 (en) | Method and device for speech coding. |