DK3096314T3 - Maskering af audiorammetab - Google Patents
Maskering af audiorammetab Download PDFInfo
- Publication number
- DK3096314T3 DK3096314T3 DK16178186.9T DK16178186T DK3096314T3 DK 3096314 T3 DK3096314 T3 DK 3096314T3 DK 16178186 T DK16178186 T DK 16178186T DK 3096314 T3 DK3096314 T3 DK 3096314T3
- Authority
- DK
- Denmark
- Prior art keywords
- frame
- prototype
- sinusoidal
- frequency
- lost
- Prior art date
Links
- 230000000873 masking effect Effects 0.000 title claims 3
- 230000005236 sound signal Effects 0.000 claims abstract description 43
- 238000006467 substitution reaction Methods 0.000 claims abstract description 22
- 238000001228 spectrum Methods 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 30
- 238000004590 computer program Methods 0.000 claims description 16
- 230000010363 phase shift Effects 0.000 claims description 8
- 230000003595 spectral effect Effects 0.000 claims description 8
- 230000009466 transformation Effects 0.000 claims 2
- 230000001131 transforming effect Effects 0.000 claims 2
- 230000004044 response Effects 0.000 abstract description 10
- 230000006870 function Effects 0.000 description 30
- 230000008901 benefit Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000006735 deficit Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013213 extrapolation Methods 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/69—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for evaluating synthetic or decoded voice signals
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Stringed Musical Instruments (AREA)
- Packaging For Recording Disks (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Television Receiver Circuits (AREA)
Claims (8)
1. Fremgangsmåde til maskering af rammetab, hvor et segment fra et tidligere modtaget eller rekonstrueret audiosignal anvendes som en prototyperam-me for at etablere en substitutionsramme for en tabt audioramme, hvilken fremgangsmåde omfatter: - transformere prototyperammen til et frekvensdomæne; - anvende en sinusmodel på prototyperammen for at identificere frekvenser af sinuskomponenter af audiosignalet; - beregne en faseforskydning Øk for de identificerede sinuskomponenter; - faseforskyde de identificerede sinuskomponenter med Øk; - etablere substitutionsrammen ved at udføre en invers frekvenstransformation af et frekvensspektrum af prototyperammen; kendetegnet ved, at - faseforskydning af de identificerede sinuskomponenter omfatter at forskyde en fase af alle spektralkoefficienter i prototyperammen indbefattet i et interval Mk omkring et sinusformet k med Øk; - faser af spektralkoefficienter, der ikke er faseforskudt, er randomiserede; og - et størrelsesspektrum af prototyperammen holdes uændret.
2. Fremgangsmåde til maskering af rammetab ifølge krav 1, hvor faseforskydningen Øk afhænger af sinusfrekvensen fk og en tidsforskydning mellem prototyperammen og den tabte ramme.
3. Indretning (13) til etablering af en substitutionsramme til en tabt audioramme, hvilken indretning omfatter: - midler til generering af en prototyperamme fra et segment af et tidligere modtaget eller rekonstrueret audiosignal; - midler til transformation af prototyperammen til et frekvensdomæne; - midler til anvendelse af en sinusmodel på prototyperammen for at identificere frekvenser af sinuskomponenter af audiosignalet; - midler til beregning af en faseforskydning Øk for de identificerede sinuskomponenter; - midler til faseforskydning af de identificerede sinuskomponenter med Øk; - midler til etablering af substitutionsrammen ved at udføre en invers frekvenstransformation af et frekvensspektrum af prototyperammen; kendetegnet ved, at - faseforskydning af de identificerede sinuskomponenter omfatter at forskyde en fase af alle spektralkoefficienter i prototyperammen indbefattet i et interval Mk omkring et sinusformet k med Øk! - faser af spektralkoefficienter, der ikke er faseforskudt, er randomiserede; og - et størrelsesspektrum af prototyperammen forbliver uændret.
4. Indretning ifølge krav 3, hvor faseforskydningen Øk afhænger af sinusfrekvensen fk og en tidsforskydning mellem prototyperammen og den tabte ramme.
5. Audioafkoder (1) omfattende indretning ifølge krav 3 eller 4.
6. Indretning omfattende audioafkoderen ifølge krav 5.
7. Computerprogram (91) omfattende instruktioner, der, når de udføres på mindst en processor, får den mindst ene processor til at udføre fremgangsmåden ifølge krav 1 eller 2.
8. Computerlæsbart datamedium til lagring af computerprogrammet (91) ifølge krav 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361760814P | 2013-02-05 | 2013-02-05 | |
| EP14704704.7A EP2954517B1 (en) | 2013-02-05 | 2014-01-22 | Audio frame loss concealment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK3096314T3 true DK3096314T3 (da) | 2018-04-03 |
Family
ID=50113007
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK16178186.9T DK3096314T3 (da) | 2013-02-05 | 2014-01-22 | Maskering af audiorammetab |
| DK19185955.2T DK3576087T3 (da) | 2013-02-05 | 2014-01-22 | Maskering af audiorammetab |
| DK14704704.7T DK2954517T3 (da) | 2013-02-05 | 2014-01-22 | Skjul af mistet lydramme |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK19185955.2T DK3576087T3 (da) | 2013-02-05 | 2014-01-22 | Maskering af audiorammetab |
| DK14704704.7T DK2954517T3 (da) | 2013-02-05 | 2014-01-22 | Skjul af mistet lydramme |
Country Status (13)
| Country | Link |
|---|---|
| US (5) | US9847086B2 (da) |
| EP (6) | EP2954517B1 (da) |
| JP (1) | JP5978408B2 (da) |
| KR (3) | KR20150108419A (da) |
| CN (3) | CN108847247B (da) |
| BR (1) | BR112015017222B1 (da) |
| DK (3) | DK3096314T3 (da) |
| ES (6) | ES2757907T3 (da) |
| HU (2) | HUE045991T2 (da) |
| NZ (1) | NZ709639A (da) |
| PL (4) | PL3576087T3 (da) |
| PT (1) | PT3333848T (da) |
| WO (1) | WO2014123470A1 (da) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| BR112015017222B1 (pt) * | 2013-02-05 | 2021-04-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Método e decodificador configurado para ocultar um quadro de áudio perdido de um sinal de áudio recebido, receptor, e, meio legível por computador |
| MY198868A (en) * | 2013-02-05 | 2023-10-02 | Ericsson Telefon Ab L M | Method and appartus for controlling audio frame loss concealment |
| NO2780522T3 (da) | 2014-05-15 | 2018-06-09 | ||
| CN111312261B (zh) | 2014-06-13 | 2023-12-05 | 瑞典爱立信有限公司 | 突发帧错误处理 |
| KR20190008663A (ko) * | 2017-07-17 | 2019-01-25 | 삼성전자주식회사 | 음성 데이터 처리 방법 및 이를 지원하는 시스템 |
| ES3021337T3 (en) | 2019-02-21 | 2025-05-26 | Ericsson Telefon Ab L M | Spectral shape estimation from mdct coefficients |
| US12437770B2 (en) | 2019-03-25 | 2025-10-07 | Razer (Asia-Pacific) Pte. Ltd. | Method and apparatus for using incremental search sequence in audio error concealment |
| PL4165628T3 (pl) * | 2020-06-11 | 2025-12-22 | Dolby International Ab | Ukrywanie utraty ramki w przypadku kanału efektów o niskiej częstotliwości |
| US12562174B2 (en) | 2020-11-26 | 2026-02-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Noise suppression logic in error concealment unit using noise-to-signal ratio |
| CN113096685B (zh) * | 2021-04-02 | 2024-05-07 | 北京猿力未来科技有限公司 | 音频处理方法及装置 |
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| BR112015017222B1 (pt) * | 2013-02-05 | 2021-04-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Método e decodificador configurado para ocultar um quadro de áudio perdido de um sinal de áudio recebido, receptor, e, meio legível por computador |
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2014
- 2014-01-22 BR BR112015017222-9A patent/BR112015017222B1/pt active IP Right Grant
- 2014-01-22 EP EP14704704.7A patent/EP2954517B1/en active Active
- 2014-01-22 EP EP17208127.5A patent/EP3333848B1/en active Active
- 2014-01-22 DK DK16178186.9T patent/DK3096314T3/da active
- 2014-01-22 KR KR1020157022751A patent/KR20150108419A/ko not_active Ceased
- 2014-01-22 PT PT172081275T patent/PT3333848T/pt unknown
- 2014-01-22 ES ES17208127T patent/ES2757907T3/es active Active
- 2014-01-22 CN CN201810572688.9A patent/CN108847247B/zh active Active
- 2014-01-22 EP EP19185955.2A patent/EP3576087B1/en active Active
- 2014-01-22 KR KR1020187011581A patent/KR102037691B1/ko active Active
- 2014-01-22 EP EP16178186.9A patent/EP3096314B1/en active Active
- 2014-01-22 PL PL19185955T patent/PL3576087T3/pl unknown
- 2014-01-22 WO PCT/SE2014/050067 patent/WO2014123470A1/en not_active Ceased
- 2014-01-22 ES ES14704704.7T patent/ES2597829T3/es active Active
- 2014-01-22 CN CN201480007537.9A patent/CN104995675B/zh active Active
- 2014-01-22 DK DK19185955.2T patent/DK3576087T3/da active
- 2014-01-22 KR KR1020167015066A patent/KR101855021B1/ko active Active
- 2014-01-22 HU HUE17208127A patent/HUE045991T2/hu unknown
- 2014-01-22 NZ NZ709639A patent/NZ709639A/en unknown
- 2014-01-22 ES ES21166868T patent/ES2954240T3/es active Active
- 2014-01-22 ES ES19185955T patent/ES2877213T3/es active Active
- 2014-01-22 PL PL21166868.6T patent/PL3866164T3/pl unknown
- 2014-01-22 US US14/764,318 patent/US9847086B2/en active Active
- 2014-01-22 EP EP21166868.6A patent/EP3866164B1/en active Active
- 2014-01-22 EP EP23185443.1A patent/EP4276820B1/en active Active
- 2014-01-22 DK DK14704704.7T patent/DK2954517T3/da active
- 2014-01-22 PL PL17208127T patent/PL3333848T3/pl unknown
- 2014-01-22 CN CN201810571350.1A patent/CN108564958B/zh active Active
- 2014-01-22 JP JP2015555963A patent/JP5978408B2/ja active Active
- 2014-01-22 ES ES16178186.9T patent/ES2664968T3/es active Active
- 2014-01-22 ES ES23185443T patent/ES3034365T3/es active Active
- 2014-01-22 HU HUE16178186A patent/HUE036322T2/hu unknown
- 2014-01-22 PL PL14704704.7T patent/PL2954517T3/pl unknown
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2017
- 2017-11-10 US US15/809,493 patent/US10339939B2/en active Active
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2019
- 2019-05-16 US US16/414,020 patent/US11482232B2/en active Active
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2022
- 2022-09-20 US US17/948,603 patent/US12148434B2/en active Active
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2024
- 2024-10-16 US US18/917,806 patent/US20250037724A1/en active Pending
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