MX2022005146A - Distribucion de tasa de bits en servicios inmersivos de voz y audio. - Google Patents
Distribucion de tasa de bits en servicios inmersivos de voz y audio.Info
- Publication number
- MX2022005146A MX2022005146A MX2022005146A MX2022005146A MX2022005146A MX 2022005146 A MX2022005146 A MX 2022005146A MX 2022005146 A MX2022005146 A MX 2022005146A MX 2022005146 A MX2022005146 A MX 2022005146A MX 2022005146 A MX2022005146 A MX 2022005146A
- Authority
- MX
- Mexico
- Prior art keywords
- metadata
- bitstream
- downmix
- bitrate distribution
- bitrates
- Prior art date
Links
- 238000013139 quantization Methods 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 2
- 230000005236 sound signal Effects 0.000 abstract 2
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
- G10L19/02—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
-
- 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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
-
- 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
-
- 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
- G10L19/002—Dynamic bit allocation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Stereophonic System (AREA)
Abstract
Se divulgan realizaciones para la distribución de tasa de bits en servicios inmersivos de voz y audio. En una realización, un método para codificar un flujo de bits IVAS comprende: recibir una señal de audio de entrada; mezclar en forma descendente la señal de audio de entrada en uno o más canales de mezcla descendente y metadatos espaciales; leer un conjunto de una o más tasas de bits para los canales de mezcla descendente y un conjunto de niveles de cuantización para los metadatos espaciales de una tabla de control de distribución de tasa de bits; determinar una combinación de una o más tasas de bits para los canales de mezcla descendente; determinar un nivel de cuantización de metadatos del conjunto de niveles de cuantización de metadatos usando un proceso de distribución de tasa de bits; cuantizar y codificar los metadatos espaciales usando el nivel de cuantización de metadatos; generar, usando la combinación de una o más tasas de bits, un flujo de bits de mezcla descendente para el único o más canales de mezcla descendente; combinar el flujo de bits de mezcla descendente, los metadatos espaciales cuantizados y codificados y el conjunto de niveles de cuantización en el flujo de bits IVAS.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962927772P | 2019-10-30 | 2019-10-30 | |
| US202063092830P | 2020-10-16 | 2020-10-16 | |
| PCT/US2020/057737 WO2021086965A1 (en) | 2019-10-30 | 2020-10-28 | Bitrate distribution in immersive voice and audio services |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2022005146A true MX2022005146A (es) | 2022-05-30 |
Family
ID=73476272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2022005146A MX2022005146A (es) | 2019-10-30 | 2020-10-28 | Distribucion de tasa de bits en servicios inmersivos de voz y audio. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20220406318A1 (es) |
| EP (1) | EP4052256A1 (es) |
| JP (1) | JP2023500632A (es) |
| KR (1) | KR20220088864A (es) |
| CN (1) | CN114616621A (es) |
| AU (1) | AU2020372899A1 (es) |
| BR (1) | BR112022007735A2 (es) |
| CA (1) | CA3156634A1 (es) |
| IL (1) | IL291655A (es) |
| MX (1) | MX2022005146A (es) |
| TW (3) | TW202410024A (es) |
| WO (1) | WO2021086965A1 (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023533665A (ja) * | 2020-06-11 | 2023-08-04 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 低遅延オーディオ・コーデックのためのパラメータの量子化およびエントロピー符号化 |
| WO2023141034A1 (en) * | 2022-01-20 | 2023-07-27 | Dolby Laboratories Licensing Corporation | Spatial coding of higher order ambisonics for a low latency immersive audio codec |
| WO2024012666A1 (en) * | 2022-07-12 | 2024-01-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding or decoding ar/vr metadata with generic codebooks |
| GB2623516A (en) * | 2022-10-17 | 2024-04-24 | Nokia Technologies Oy | Parametric spatial audio encoding |
| WO2024097485A1 (en) | 2022-10-31 | 2024-05-10 | Dolby Laboratories Licensing Corporation | Low bitrate scene-based audio coding |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI396188B (zh) * | 2005-08-02 | 2013-05-11 | Dolby Lab Licensing Corp | 依聆聽事件之函數控制空間音訊編碼參數的技術 |
| AR077680A1 (es) * | 2009-08-07 | 2011-09-14 | Dolby Int Ab | Autenticacion de flujos de datos |
| EP2862166B1 (en) * | 2012-06-14 | 2018-03-07 | Dolby International AB | Error concealment strategy in a decoding system |
| EP2838086A1 (en) * | 2013-07-22 | 2015-02-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment |
| US10885921B2 (en) * | 2017-07-07 | 2021-01-05 | Qualcomm Incorporated | Multi-stream audio coding |
| CN110945494B (zh) * | 2017-07-28 | 2024-06-21 | 杜比实验室特许公司 | 向客户端提供媒体内容的方法和系统 |
| US10854209B2 (en) * | 2017-10-03 | 2020-12-01 | Qualcomm Incorporated | Multi-stream audio coding |
| CA3219540A1 (en) * | 2017-10-04 | 2019-04-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus, method and computer program for encoding, decoding, scene processing and other procedures related to dirac based spatial audio coding |
| WO2019106221A1 (en) * | 2017-11-28 | 2019-06-06 | Nokia Technologies Oy | Processing of spatial audio parameters |
| WO2020008112A1 (en) * | 2018-07-03 | 2020-01-09 | Nokia Technologies Oy | Energy-ratio signalling and synthesis |
| GB2586214A (en) * | 2019-07-31 | 2021-02-17 | Nokia Technologies Oy | Quantization of spatial audio direction parameters |
| GB2595891A (en) * | 2020-06-10 | 2021-12-15 | Nokia Technologies Oy | Adapting multi-source inputs for constant rate encoding |
-
2020
- 2020-10-28 US US17/772,497 patent/US20220406318A1/en active Pending
- 2020-10-28 CN CN202080075350.8A patent/CN114616621A/zh active Pending
- 2020-10-28 MX MX2022005146A patent/MX2022005146A/es unknown
- 2020-10-28 EP EP20808599.3A patent/EP4052256A1/en active Pending
- 2020-10-28 CA CA3156634A patent/CA3156634A1/en active Pending
- 2020-10-28 AU AU2020372899A patent/AU2020372899A1/en active Pending
- 2020-10-28 KR KR1020227014328A patent/KR20220088864A/ko unknown
- 2020-10-28 BR BR112022007735A patent/BR112022007735A2/pt unknown
- 2020-10-28 WO PCT/US2020/057737 patent/WO2021086965A1/en unknown
- 2020-10-28 JP JP2022524623A patent/JP2023500632A/ja active Pending
- 2020-10-29 TW TW112141550A patent/TW202410024A/zh unknown
- 2020-10-29 TW TW111112398A patent/TWI821966B/zh active
- 2020-10-29 TW TW109137722A patent/TWI762008B/zh active
-
2022
- 2022-03-23 IL IL291655A patent/IL291655A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TW202410024A (zh) | 2024-03-01 |
| IL291655A (en) | 2022-05-01 |
| AU2020372899A1 (en) | 2022-04-21 |
| KR20220088864A (ko) | 2022-06-28 |
| WO2021086965A1 (en) | 2021-05-06 |
| CA3156634A1 (en) | 2021-05-06 |
| CN114616621A (zh) | 2022-06-10 |
| TW202230332A (zh) | 2022-08-01 |
| TWI762008B (zh) | 2022-04-21 |
| BR112022007735A2 (pt) | 2022-07-12 |
| JP2023500632A (ja) | 2023-01-10 |
| TW202135046A (zh) | 2021-09-16 |
| TWI821966B (zh) | 2023-11-11 |
| EP4052256A1 (en) | 2022-09-07 |
| US20220406318A1 (en) | 2022-12-22 |
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