DK2954523T3 - Systemer og fremgangsmåder til udførelse af filtrering til forstærkningsbestemmelse - Google Patents
Systemer og fremgangsmåder til udførelse af filtrering til forstærkningsbestemmelse Download PDFInfo
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- DK2954523T3 DK2954523T3 DK13753450.9T DK13753450T DK2954523T3 DK 2954523 T3 DK2954523 T3 DK 2954523T3 DK 13753450 T DK13753450 T DK 13753450T DK 2954523 T3 DK2954523 T3 DK 2954523T3
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- audio signal
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- 238000001914 filtration Methods 0.000 title claims description 84
- 238000000034 method Methods 0.000 title claims description 64
- 230000005236 sound signal Effects 0.000 claims description 104
- 230000003044 adaptive effect Effects 0.000 claims description 25
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- 230000000694 effects Effects 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 2
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- 238000012360 testing method Methods 0.000 description 28
- 230000005284 excitation Effects 0.000 description 22
- 230000001939 inductive effect Effects 0.000 description 21
- 238000001514 detection method Methods 0.000 description 11
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- 230000002123 temporal effect Effects 0.000 description 10
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- 101000712600 Homo sapiens Thyroid hormone receptor beta Proteins 0.000 description 5
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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
- G10L19/02—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
- G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
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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
- G10L19/16—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
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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
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
- G10L21/0388—Details of processing therefor
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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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
- G10L19/07—Line spectrum pair [LSP] vocoders
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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
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Claims (12)
1. Fremgangsmåde omfattende at: bestemme, baseret på spektral information svarende til et audiosignal der omfatter en lavbånddel og en højbånddel, at audiosignalet omfatter en komponent svarende til en artefakt-genererende tilstand; filtrere højbånddelen af audiosignalet for at generere et filtreret højbånd-output baseret på et inter-line spektralt par (LSP) afstand associeret med højbånddelen af audiosignalet; og generere et kodet signal, hvor generering af det kodede signal omfatter at bestemme forstærkningsinformation baseret på et forhold af en første energi svarende til det filtrerede højbånd-output til en anden energi svarende til et syntetiseret højbåndsignal genereret baseret på lavbånddelen og et moduleret støjsignal signal eller lavbånddelen for at reducere en hørbar effekt af den artefakt-genererende tilstand.
2. Fremgangsmåden ifølge krav 1, hvor at filtrere højbånddelen af audiosignalet omfatter at filtrere højbånddelen under anvendelse af lineære prædiktion-koeffici-enter (LPCs) associeret med højbånddelen af audiosignalet for at generere et LPC-filtreret højbånd-output.
3. Fremgangsmåden ifølge krav 1, yderligere omfattende at bestemme en inter-LSP-afstand associeret med en ramme af audiosignalet.
4. Fremgangsmåden ifølge krav 3, hvor inter-LSP-afstanden er associeret med rammen er en mindste af en flerhed af inter-LSP-afstande svarende til en flerhed af LSP'er genereret under lineær prædiktiv kodning (LPC) af rammen.
5. Fremgangsmåden ifølge krav 3, hvor filtreringen udføres under anvendelse af en adaptive vægtningsfaktor, hvilken fremgangsmåde yderligere omfatter at bestemme den adaptive vægtningsfaktor baseret på inter-LSP-afstanden associeret med rammen, hvor at filtrere højbånddelen af audiosignalet kan omfatte påføring af den adaptive vægtningsfaktor til højbånd-lineære prædiktion-koefficienter.
6. Fremgangsmåden ifølge krav 5, hvor afbildningen er en af: en lineær afbildning; adaptiv baseret på mindst én afen sampling-hastighed eller en frekvens svarende til den artefakt-genererende tilstand, et signal-til-støj-forhold eller en prædiktion-forstærkning efter lineær prædiktion-analyse.
7. Fremgangsmåden ifølge krav 3, hvor audiosignalet bestemmes til at omfatte komponenten i respons til inter-LSP-afstanden associeret med rammen der er mindre end en første tærskelværdi.
8. Fremgangsmåden ifølge krav 3, yderligere omfattende at bestemme et gennemsnits-inter-LSP-afstand baseret på inter-LSP-afstanden associeret med rammen og mindst en anden inter-LSP-afstand associeret med mindst en anden ramme af audiosignalet.
9. Fremgangsmåden ifølge krav 7, yderligere omfattende at bestemme inter-LSP-afstanden associeret med rammen, hvor inter-LSP-afstanden associeret med rammen er en mindste af en flerhed af inter-LSP-afstande svarende til en flerhed af LSP'er genereret under lineær prædiktiv kodning (LPC) af rammen.
10. Fremgangsmåden ifølge krav 9, hvor højbånddelen af audiosignalet er filtreret i respons til inter-LSP-afstanden associeret med at rammen er: mindre end en første tærskelværdi, eller mindre end en anden tærskelværdi og mindst en af: en gennemsnits-inter-LSP-afstand der er mindre end en tredje tærskelværdi, gennemsnits-inter-LSP-afstanden baseret på inter-LSP-afstanden associeret med rammen og mindst en anden inter-LSP-afstand associeret med mindst en anden ramme af audiosignalet; eller højbånd-filtrere svarende til en anden ramme af audiosignalet er aktiveret, den anden ramme foregående rammen af audiosignalet.
11. Apparat omfattende: organ til at bestemme, baseret på spektral information svarende til et audiosignal der omfatter en lavbånddel og en højbånddel, at audiosignalet omfatter en komponent svarende til en artefakt-genererende tilstand; organ til at filtrere en højbånddel af audiosignalet til at generere et filtreret højbånd-output baseret på et inter-line spektralt par (LSP)-afstand associeret med højbånddelen af audiosignalet; og organ til at generere et kodet signal, hvor organet til at generere det kodede signal omfatter organ til at bestemme forstærkningsinformation baseret på et forhold af en første energi svarende til det filtrerede højbånd-output til en anden energi svarende til lavbånddelen for at reducere en hørbar effekt af den artefakt-genererende tilstand.
12. Ikke-transistorisk computer-læsbart medium omfattende instruktioner der, når de udføres af en computer, forårsager computeren til at udføre fremgangsmåden ifølge et hvilket som helst af kravene 1 til 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361762807P | 2013-02-08 | 2013-02-08 | |
| US13/959,188 US9711156B2 (en) | 2013-02-08 | 2013-08-05 | Systems and methods of performing filtering for gain determination |
| PCT/US2013/053806 WO2014123579A1 (en) | 2013-02-08 | 2013-08-06 | Systems and methods of performing filtering for gain determination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK2954523T3 true DK2954523T3 (da) | 2019-03-25 |
Family
ID=51298066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK13753450.9T DK2954523T3 (da) | 2013-02-08 | 2013-08-06 | Systemer og fremgangsmåder til udførelse af filtrering til forstærkningsbestemmelse |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US9711156B2 (da) |
| EP (1) | EP2954523B1 (da) |
| JP (1) | JP6456847B2 (da) |
| KR (1) | KR101891872B1 (da) |
| CN (1) | CN104969291B (da) |
| AU (1) | AU2013377885B2 (da) |
| BR (1) | BR112015019040B1 (da) |
| CA (1) | CA2896814C (da) |
| DK (1) | DK2954523T3 (da) |
| ES (1) | ES2715847T3 (da) |
| HK (1) | HK1211377A1 (da) |
| HU (1) | HUE042387T2 (da) |
| IL (1) | IL239719A (da) |
| MY (1) | MY171188A (da) |
| PH (1) | PH12015501516B1 (da) |
| PL (1) | PL2954523T3 (da) |
| PT (1) | PT2954523T (da) |
| RU (1) | RU2643628C2 (da) |
| SG (1) | SG11201505067TA (da) |
| SI (1) | SI2954523T1 (da) |
| UA (1) | UA116371C2 (da) |
| WO (1) | WO2014123579A1 (da) |
| ZA (1) | ZA201506577B (da) |
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| CN104301064B (zh) | 2013-07-16 | 2018-05-04 | 华为技术有限公司 | 处理丢失帧的方法和解码器 |
| CN105761723B (zh) * | 2013-09-26 | 2019-01-15 | 华为技术有限公司 | 一种高频激励信号预测方法及装置 |
| US9697843B2 (en) | 2014-04-30 | 2017-07-04 | Qualcomm Incorporated | High band excitation signal generation |
| CN106683681B (zh) | 2014-06-25 | 2020-09-25 | 华为技术有限公司 | 处理丢失帧的方法和装置 |
| CN104217726A (zh) * | 2014-09-01 | 2014-12-17 | 东莞中山大学研究院 | 一种无损音频压缩编码方法及其解码方法 |
| US10049684B2 (en) | 2015-04-05 | 2018-08-14 | Qualcomm Incorporated | Audio bandwidth selection |
| US10020002B2 (en) | 2015-04-05 | 2018-07-10 | Qualcomm Incorporated | Gain parameter estimation based on energy saturation and signal scaling |
| US9380150B1 (en) * | 2015-09-16 | 2016-06-28 | Captioncall, Llc | Methods and devices for automatic volume control of a far-end voice signal provided to a captioning communication service |
| SG11201808684TA (en) * | 2016-04-12 | 2018-11-29 | Fraunhofer Ges Forschung | Audio encoder for encoding an audio signal, method for encoding an audio signal and computer program under consideration of a detected peak spectral region in an upper frequency band |
| GB2582749A (en) * | 2019-03-28 | 2020-10-07 | Nokia Technologies Oy | Determination of the significance of spatial audio parameters and associated encoding |
| US11321047B2 (en) | 2020-06-11 | 2022-05-03 | Sorenson Ip Holdings, Llc | Volume adjustments |
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2013
- 2013-08-05 US US13/959,188 patent/US9711156B2/en active Active
- 2013-08-06 CN CN201380071701.8A patent/CN104969291B/zh active Active
- 2013-08-06 PT PT13753450T patent/PT2954523T/pt unknown
- 2013-08-06 DK DK13753450.9T patent/DK2954523T3/da active
- 2013-08-06 AU AU2013377885A patent/AU2013377885B2/en active Active
- 2013-08-06 WO PCT/US2013/053806 patent/WO2014123579A1/en active Application Filing
- 2013-08-06 RU RU2015138109A patent/RU2643628C2/ru active
- 2013-08-06 CA CA2896814A patent/CA2896814C/en active Active
- 2013-08-06 BR BR112015019040-5A patent/BR112015019040B1/pt active IP Right Grant
- 2013-08-06 MY MYPI2015702276A patent/MY171188A/en unknown
- 2013-08-06 SI SI201331369T patent/SI2954523T1/sl unknown
- 2013-08-06 ES ES13753450T patent/ES2715847T3/es active Active
- 2013-08-06 EP EP13753450.9A patent/EP2954523B1/en active Active
- 2013-08-06 PL PL13753450T patent/PL2954523T3/pl unknown
- 2013-08-06 KR KR1020157023785A patent/KR101891872B1/ko active IP Right Grant
- 2013-08-06 JP JP2015556929A patent/JP6456847B2/ja active Active
- 2013-08-06 UA UAA201508656A patent/UA116371C2/uk unknown
- 2013-08-06 HU HUE13753450A patent/HUE042387T2/hu unknown
- 2013-08-06 SG SG11201505067TA patent/SG11201505067TA/en unknown
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2015
- 2015-06-30 IL IL239719A patent/IL239719A/en active IP Right Grant
- 2015-07-03 PH PH12015501516A patent/PH12015501516B1/en unknown
- 2015-09-07 ZA ZA2015/06577A patent/ZA201506577B/en unknown
- 2015-12-07 HK HK15112045.3A patent/HK1211377A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| UA116371C2 (uk) | 2018-03-12 |
| MY171188A (en) | 2019-09-30 |
| RU2015138109A (ru) | 2017-03-16 |
| SI2954523T1 (sl) | 2019-04-30 |
| PT2954523T (pt) | 2019-03-25 |
| AU2013377885B2 (en) | 2019-07-18 |
| IL239719A (en) | 2016-11-30 |
| JP6456847B2 (ja) | 2019-01-23 |
| HUE042387T2 (hu) | 2019-06-28 |
| PL2954523T3 (pl) | 2019-05-31 |
| CA2896814C (en) | 2018-08-14 |
| ES2715847T3 (es) | 2019-06-06 |
| BR112015019040B1 (pt) | 2021-12-07 |
| US9711156B2 (en) | 2017-07-18 |
| JP2016511436A (ja) | 2016-04-14 |
| CN104969291A (zh) | 2015-10-07 |
| ZA201506577B (en) | 2018-08-29 |
| WO2014123579A1 (en) | 2014-08-14 |
| IL239719A0 (en) | 2015-08-31 |
| RU2643628C2 (ru) | 2018-02-02 |
| BR112015019040A2 (pt) | 2017-07-18 |
| US20140229171A1 (en) | 2014-08-14 |
| KR101891872B1 (ko) | 2018-08-24 |
| EP2954523B1 (en) | 2018-12-19 |
| EP2954523A1 (en) | 2015-12-16 |
| HK1211377A1 (en) | 2016-05-20 |
| PH12015501516A1 (en) | 2015-09-21 |
| CA2896814A1 (en) | 2014-08-14 |
| CN104969291B (zh) | 2018-10-26 |
| PH12015501516B1 (en) | 2015-09-21 |
| AU2013377885A1 (en) | 2015-07-23 |
| KR20150116881A (ko) | 2015-10-16 |
| SG11201505067TA (en) | 2015-08-28 |
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