DK3138096T3 - Højbånds-excitationssignal-generering - Google Patents
Højbånds-excitationssignal-generering Download PDFInfo
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- DK3138096T3 DK3138096T3 DK15716340.3T DK15716340T DK3138096T3 DK 3138096 T3 DK3138096 T3 DK 3138096T3 DK 15716340 T DK15716340 T DK 15716340T DK 3138096 T3 DK3138096 T3 DK 3138096T3
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- Prior art keywords
- signal
- envelope
- high band
- excitation signal
- white noise
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- 230000005284 excitation Effects 0.000 title claims description 188
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 title claims description 48
- 238000000034 method Methods 0.000 claims description 120
- 230000005236 sound signal Effects 0.000 claims description 37
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000003595 spectral effect Effects 0.000 description 37
- 238000004891 communication Methods 0.000 description 21
- 238000012545 processing Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 238000001228 spectrum Methods 0.000 description 11
- 230000003044 adaptive effect Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 230000001413 cellular effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000002123 temporal effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000013139 quantization Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000013598 vector Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000010845 search algorithm Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
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- 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
-
- 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
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- 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
- G10L21/0208—Noise filtering
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Amplifiers (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Circuit For Audible Band Transducer (AREA)
- Control Of Amplification And Gain Control (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Telephone Function (AREA)
Claims (15)
1. Fremgangsmåde til højbånds-excitationssignal-generering omfattende at: bestemme, ved en indretning, en stemmeklassifikation af et inputsignal, hvor input-signalet svarer til et audiosignal; styre en indhylling af et excitationssignal af inputsignalet baseret på tale-klassifikationen, hvor frekvensområdet af indhyllingen styres baseret på en cut-off-frekvens af et lavpasfilter påført til excitationssignalet af inputsignalet; modulere et hvidstøjsignal baseret på den styrede indhylling; og generere et højbånds-excitationssignal baseret på det modulerede hvidstøjsignal.
2. Fremgangsmåden ifølge krav 1, hvor at styre indhyllingen yderligere omfatter at styre en karakteristik af indhyllingen og karakteristikken af indhyllingen omfatter mindst en af en form af indhyllingen, en størrelse af indhyllingen, en forstærkning af indhyllingen.
3. Fremgangsmåden ifølge krav 1, hvor et omfang af variation af formen af indhyllingen er større når tale-klassifikationen svarer til stærk tale end når tale-klassifikationen svarer til stærke ikke-tale.
4. Fremgangsmåden ifølge krav 1, yderligere omfattende at bestemme cut-off-frekvensen baseret på tale-klassifikationen.
5. Fremgangsmåden ifølge krav 4, hvor cut-off-frekvensen er større når tale-klassifikationen svarer til stærk tale end når tale-klassifikationen svarer til stærk ikke-tale.
6. Fremgangsmåden ifølge krav 1, hvor indretningen er en afkoder eller en indkoder.
7. Fremgangsmåden ifølge krav 1, hvor indhyllingen er en tidsvarierende indhylling.
8. Fremgangsmåden ifølge krav 1, hvor excitationssignalet af inputsignalet inkluderer et lavbånds-excitationssignal af en indkodet version af audiosignalet eller et højbånds-excitationssignal af den indkodende version af audiosignalet.
9. Fremgangsmåden ifølge krav 1, hvor excitationssignalet af inputsignalet omfatter et harmonisk forlænget excitationssignal og hvor det harmonisk forlængede excitationssignal genereres fra et lavbånds-excitationssignal af en indkodet version af audiosignalet.
10. Fremgangsmåden ifølge krav 1, yderligere omfattende at generere et skaleret hvidstøjsignal ved at kombinere et første forhold af et ikke-moduleret hvidstøjsignal med et andet forhold af det modulerede hvidstøjsignal, hvor det første forhold og det andet forhold bestemmes baseret på tale-klassifikationen og hvor højbånds-excitationssignalet baseres på det skalerede hvidstøjsignal.
11. Apparat til højbånds-excitationssignal-generering omfattende: en stemmeklassifikator konfigureret til at bestemme en stemmeklassifikation af et inputsignal, hvor inputsignalet svarer til et audiosignal; en indhylling-regulator konfigureret til at styre en indhylling af et excitationssignal af inputsignalet baseret på tale-klassifikationen, hvor frekvensområdet af indhyllingen er styret baseret på en cut-off-frekvens af et lavpasfilter påført til excitationssignalet af input-signalet; en modulator konfigureret til at modulere et hvidstøjsignal baseret på den styrede indhylling; og et outputkredsløb konfigureret til at generere et højbånds-excitationssignal baseret på det modulerede hvidstøjsignal.
12. Apparatet ifølge krav 11, hvor indhylling-regulatoren yderligere er konfigureret til at styre baseret på tale-klassifikationen, mindst en afen form af indhyllingen, en størrelse af indhyllingen, eller en forstærkning af indhyllingen.
13. Apparatet ifølge krav 12, hvor mindst en af formen af indhyllingen, størrelsen af indhyllingen, og forstærkningen af indhyllingen styres ved at justere én eller flere poler af lineære prædiktive kodnings-(LPC)-koefficienter baseret på tale-klassifikationen.
14. Apparatet ifølge krav 12, hvor mindst en af formen af indhyllingen, størrelsen af indhyllingen, og forstærkningen af indhyllingen styres ved at justere koefficienterne af et filter baseret på tale-klassifikationen og hvor filteret påføres af modulatoren til hvidstøjsignalet for at genere det modulerede hvidstøjsignal.
15. Computer-læsbart lagerindretning der lagrer instruktioner der, når de eksekveres af mindst en processor, forårsager den mindst ene processor at udføre fremgangsmåden ifølge et hvilket som helst af kravene 1 til 10.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/265,693 US9697843B2 (en) | 2014-04-30 | 2014-04-30 | High band excitation signal generation |
| PCT/US2015/023483 WO2015167732A1 (en) | 2014-04-30 | 2015-03-31 | High band excitation signal generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK3138096T3 true DK3138096T3 (da) | 2019-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK15716340.3T DK3138096T3 (da) | 2014-04-30 | 2015-03-31 | Højbånds-excitationssignal-generering |
Country Status (28)
| Country | Link |
|---|---|
| US (2) | US9697843B2 (da) |
| EP (1) | EP3138096B1 (da) |
| JP (1) | JP6599362B2 (da) |
| KR (2) | KR102433713B1 (da) |
| CN (2) | CN110827842B (da) |
| AR (1) | AR099952A1 (da) |
| AU (1) | AU2015253721B2 (da) |
| BR (1) | BR112016024971B1 (da) |
| CA (1) | CA2944874C (da) |
| CL (1) | CL2016002709A1 (da) |
| DK (1) | DK3138096T3 (da) |
| ES (1) | ES2711524T3 (da) |
| HU (1) | HUE041343T2 (da) |
| IL (1) | IL248562B (da) |
| MX (1) | MX361046B (da) |
| MY (1) | MY192071A (da) |
| NZ (1) | NZ724656A (da) |
| PH (1) | PH12016502137A1 (da) |
| PL (1) | PL3138096T3 (da) |
| PT (1) | PT3138096T (da) |
| RU (1) | RU2683632C2 (da) |
| SA (1) | SA516380088B1 (da) |
| SG (1) | SG11201607703PA (da) |
| SI (1) | SI3138096T1 (da) |
| TR (1) | TR201901357T4 (da) |
| TW (1) | TWI643186B (da) |
| WO (1) | WO2015167732A1 (da) |
| ZA (1) | ZA201607459B (da) |
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| CN103516440B (zh) * | 2012-06-29 | 2015-07-08 | 华为技术有限公司 | 语音频信号处理方法和编码装置 |
| CN103928029B (zh) * | 2013-01-11 | 2017-02-08 | 华为技术有限公司 | 音频信号编码和解码方法、音频信号编码和解码装置 |
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| CN108364657B (zh) | 2013-07-16 | 2020-10-30 | 超清编解码有限公司 | 处理丢失帧的方法和解码器 |
| CN107452390B (zh) | 2014-04-29 | 2021-10-26 | 华为技术有限公司 | 音频编码方法及相关装置 |
| US9697843B2 (en) | 2014-04-30 | 2017-07-04 | Qualcomm Incorporated | High band excitation signal generation |
| FR3020732A1 (fr) * | 2014-04-30 | 2015-11-06 | Orange | Correction de perte de trame perfectionnee avec information de voisement |
| TR201910806T4 (tr) * | 2014-05-01 | 2019-08-21 | Nippon Telegraph & Telephone | Periyodik birleşik zarf dizisi üretme cihazı, periyodik birleşik zarf dizisi üretme metodu, periyodik birleşik zarf dizisi üretme programı ve kayıt ortamı. |
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| CN114171035B (zh) * | 2020-09-11 | 2024-10-15 | 海能达通信股份有限公司 | 抗干扰方法及装置 |
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