DK3143615T3 - Bestemmelse mellem skalær- og vektor-kvantisering i højere ordens-ambisoniske koefficienter - Google Patents
Bestemmelse mellem skalær- og vektor-kvantisering i højere ordens-ambisoniske koefficienter Download PDFInfo
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- DK3143615T3 DK3143615T3 DK15725958.1T DK15725958T DK3143615T3 DK 3143615 T3 DK3143615 T3 DK 3143615T3 DK 15725958 T DK15725958 T DK 15725958T DK 3143615 T3 DK3143615 T3 DK 3143615T3
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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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/038—Vector quantisation, e.g. TwinVQ audio
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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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
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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
- G10L2019/0001—Codebooks
- G10L2019/0013—Codebook search algorithms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/11—Application of ambisonics in stereophonic audio systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
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- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
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Claims (21)
1. Indretning konfigureret til at afkode audiodata indikative for en flerhed af højere-ordens ambisoniske (HOA) koefficienter, hvilken indretning omfatter: en hukommelse konfigureret til at lagre audiodata; og én eller flere processorer konfigureret til at bestemme hvorvidt der skal udføres vektor-dekvantisering eller skalær-dekvantisering i forhold til en nedbrudt version af flerheden af HOA-koefficienter.
2. Indretningen ifølge krav 1, hvor den ene eller flere processorer yderligere er konfigureret til at udføre den skalære dekvantisering baseret på bestemmelsen.
3. Indretningen ifølge krav 2, hvor den ene eller flere processorer yderligere er konfigureret til at opnå en bitstrøm der omfatter et felt der indikerer en værdi der udtrykker en kvantiseringstrinstørrelse eller en variabel deraf anvendt når komprimering af den nedbrudte version af flerheden af HOA koefficienter.
4. Indretningen ifølge krav 1, hvor den ene eller flere processorer yderligere er konfigureret til at reetablere HOA-koefficienterne baseret på den dekvantiserede nedbrudte version af HOA-koefficienterne og gør HOA-koefficienterne til højtalertilførselssignaler, og hvor indretningen yderligere omfatter højtalerenheder drevet af højtalertilførselssignalerne til at reproducere et lydfelt repræsenteret af HOA-koefficienterne.
5. Indretningen ifølge krav 1, hvor den ene eller flere processorer er konfigureret til at reetablere flerheden af HOA koefficienter baseret på den dekvantiserede nedbrudte version og et audioobjekt svarende til den rumlige komponent.
6. Indretningen ifølge krav 1, hvor den ene eller flere processorer yderligere er konfigureret til at udføre vektor-kvantiseringen i forhold til en første del af den nedbrudte version af flerheden af HOA-koefficienter baseret på bestemmelsen, og udføre skalær-dekvantiseringen i forhold til en anden del af den nedbrudte version af flerheden af HOA-koefficienter baseret på bestemmelsen.
7. Indretningen ifølge krav 1, hvor den ene eller flere processorer er konfigureret til at bestemme hvorvidt der skal udføres vektor-kvantiseringen eller skalær-dekvantiseringen i forhold til den nedbrudte version af flerheden af HOA-koefficienter baseret på en tærskelværdi-bitrate.
8. Indretningen ifølge krav 7, hvor tærskelværdi-bitraten omfatter 256 kilobits pr. sekund (Kbps).
9. Indretningen ifølge krav 7, hvor den ene eller flere processorer er konfigureret til at bestemme til at udføre vektor-kvantiseringen i forhold til den nedbrudte version af flerheden af HOA-koefficienter når tærskelværdi-bitraten er lig med eller under 256 kilobits pr. sekund (Kpbs).
10. Indretningen ifølge krav 7, hvor den ene eller flere processorer er konfigureret til at bestemmes til at udføre skalær-dekvantisering i forhold til den nedbrudte version af flerheden af HOA-koefficienter når tærskelværdibitraten er over 256 kilobits pr. sekund (Kpbs).
11. Fremgangsmåde til afkodning af audiodata indikativ for en flerhed af højere-ordens ambisoniske (HOA) koefficienter, hvilken fremgangsmåde omfatter: hvorvidt der skal udføres vektor-dekvantisering eller skalær-dekvantisering i forhold til en nedbrudt version af flerheden af HOA koefficienter.
12. Fremgangsmåden ifølge krav 11, yderligere omfattende udførelse af vektor-kvantiseringen baseret på bestemmelsen.
13. Fremgangsmåden ifølge krav 12, hvor udførelse af vektor-kvantiseringen omfatter bestemmelse af én eller flere vægtværdier der repræsenterer en vektor der er omfattet i den nedbrudte version af flerheden af HOA-koefficienter, hver af vægtværdierne svarende til en respektiv af en flerhed af vægte omfattet i den vægtede sum af kodevektorer der repræsenterer vektoren.
14. Fremgangsmåden ifølge krav 13, hvor bestemmelse af vægtværdierne omfatter bestemmelse af et sæt af N-vægtværdier.
15. Fremgangsmåden ifølge krav 14, yderligere omfattende opnåelse af en bitstrøm der omfatter et syntaxelement indikativ for hvilke af de M-største vægtværdier hvor valgt fra en vægtværdikodeblok.
16. Fremgangsmåden ifølge krav 15, hvor vægtværdikodeblokken er en af en flerhed af vægtværdikodeblokke, og opnåelse af bitstrømmen omfatter opnåelse af bitstrømmen der også omfatter et syntaxelement der identificerer vægtværdikodeblokken af flerheden af vægtværdikodeblokke fra hvilke de M-største vægtværdier blev valgt.
17. Fremgangsmåden ifølge krav 13, yderligere omfattende bestemmelse af hvilket af sættet af kodevektorer der skal anvendes med en tilsvarende af vægtværdierne for at repræsentere den nedbrudte version af flerheden af HOA koefficienter.
18. Fremgangsmåden ifølge krav 13, yderligere omfattende bestemmelse af hvilket af sættet af kodevektorer der skal anvendes med en tilsvarende af vægtværdierne for at betegne den nedbrudte version af flerheden af HOA-koefficienter baseret på et syntaxelement omfattet i bitstrømmen indikativ for et vektorindeks.
19. Fremgangsmåden ifølge krav 11, yderligere omfattende opnåelse afen bitstrøm der omfatter en syntaxelement-identificering hvorvidt vektor-kvantiseringen eller skalær-kvantiseringen blev udført.
20. Fremgangsmåde til indkodning af audiodata, hvilken fremgangsmåde omfatter: hvorvidt der skal udføres vektor-kvantisering eller skalær-kvantisering i forhold til en nedbrudt version af en flerhed af højere-ordens ambisoniske (HOA) koefficienter.
21. Fremgangsmåden ifølge krav 20, yderligere omfattende udførelse af vektor-kvantisering baseret på bestemmelsen.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461994794P | 2014-05-16 | 2014-05-16 | |
| US201462004128P | 2014-05-28 | 2014-05-28 | |
| US201462019663P | 2014-07-01 | 2014-07-01 | |
| US201462027702P | 2014-07-22 | 2014-07-22 | |
| US201462028282P | 2014-07-23 | 2014-07-23 | |
| US201462032440P | 2014-08-01 | 2014-08-01 | |
| US14/712,843 US9620137B2 (en) | 2014-05-16 | 2015-05-14 | Determining between scalar and vector quantization in higher order ambisonic coefficients |
| PCT/US2015/031187 WO2015175999A1 (en) | 2014-05-16 | 2015-05-15 | Determining between scalar and vector quantization in higher order ambisonic coefficients |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK3143615T3 true DK3143615T3 (da) | 2019-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| DK15725958.1T DK3143615T3 (da) | 2014-05-16 | 2015-05-15 | Bestemmelse mellem skalær- og vektor-kvantisering i højere ordens-ambisoniske koefficienter |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US9620137B2 (da) |
| EP (1) | EP3143615B1 (da) |
| JP (1) | JP6293930B2 (da) |
| KR (1) | KR101825317B1 (da) |
| CN (1) | CN106471577B (da) |
| AU (1) | AU2015258827B2 (da) |
| BR (1) | BR112016026812B1 (da) |
| CA (1) | CA2948630C (da) |
| CL (1) | CL2016002893A1 (da) |
| DK (1) | DK3143615T3 (da) |
| ES (1) | ES2714275T3 (da) |
| HU (1) | HUE043655T2 (da) |
| MX (1) | MX356140B (da) |
| MY (1) | MY182306A (da) |
| PH (1) | PH12016502224A1 (da) |
| RU (1) | RU2656833C1 (da) |
| SA (1) | SA516380280B1 (da) |
| SG (1) | SG11201608519RA (da) |
| SI (1) | SI3143615T1 (da) |
| WO (1) | WO2015175999A1 (da) |
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| US9466305B2 (en) | 2013-05-29 | 2016-10-11 | Qualcomm Incorporated | Performing positional analysis to code spherical harmonic coefficients |
| US9502045B2 (en) | 2014-01-30 | 2016-11-22 | Qualcomm Incorporated | Coding independent frames of ambient higher-order ambisonic coefficients |
| US9922656B2 (en) | 2014-01-30 | 2018-03-20 | Qualcomm Incorporated | Transitioning of ambient higher-order ambisonic coefficients |
| US10770087B2 (en) | 2014-05-16 | 2020-09-08 | Qualcomm Incorporated | Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals |
| US9852737B2 (en) | 2014-05-16 | 2017-12-26 | Qualcomm Incorporated | Coding vectors decomposed from higher-order ambisonics audio signals |
| US9736606B2 (en) | 2014-08-01 | 2017-08-15 | Qualcomm Incorporated | Editing of higher-order ambisonic audio data |
| US9747910B2 (en) | 2014-09-26 | 2017-08-29 | Qualcomm Incorporated | Switching between predictive and non-predictive quantization techniques in a higher order ambisonics (HOA) framework |
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| EP4120255A1 (fr) * | 2021-07-15 | 2023-01-18 | Orange | Quantification vectorielle spherique optimisee |
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