MX2023002593A - Procesamiento de audio codificado parametricamente. - Google Patents
Procesamiento de audio codificado parametricamente.Info
- Publication number
- MX2023002593A MX2023002593A MX2023002593A MX2023002593A MX2023002593A MX 2023002593 A MX2023002593 A MX 2023002593A MX 2023002593 A MX2023002593 A MX 2023002593A MX 2023002593 A MX2023002593 A MX 2023002593A MX 2023002593 A MX2023002593 A MX 2023002593A
- Authority
- MX
- Mexico
- Prior art keywords
- audio signal
- input
- parametrically coded
- output
- bit stream
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 abstract 8
- 239000011159 matrix material Substances 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
- G10L19/008—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
- G10L19/04—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
- G10L19/04—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
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
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)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Un método que comprende recibir un primer flujo de bits de entrada para una primera señal de audio de entrada codificada paramétricamente, incluyendo el primer flujo de bits de entrada datos que representan una primera señal de audio central de entrada y un primer conjunto que incluye al menos un parámetro espacial relacionado con la primera señal de audio de entrada codificada paramétricamente. Una primera matriz de covarianza de la primera señal de audio codificada paramétricamente se determina sobre la base de los parámetros espaciales del primer conjunto. Un conjunto modificado que incluye al menos un parámetro espacial se determina sobre la base de la primera matriz de covarianza determinada, donde el conjunto modificado es diferente del primer conjunto. Se determina una señal de audio central de salida, la cual se basa en o está constituida por, la primera señal de audio central de entrada. Se genera un flujo de bits de salida para una señal de audio de salida codificada paramétricamente, incluyendo el flujo de bits de salida datos que representan la señal de audio central de salida y el conjunto modificado.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063075889P | 2020-09-09 | 2020-09-09 | |
| EP20195258 | 2020-09-09 | ||
| PCT/US2021/049285 WO2022055883A1 (en) | 2020-09-09 | 2021-09-07 | Processing parametrically coded audio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2023002593A true MX2023002593A (es) | 2023-03-16 |
Family
ID=77924537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2023002593A MX2023002593A (es) | 2020-09-09 | 2021-09-07 | Procesamiento de audio codificado parametricamente. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20230335142A1 (es) |
| EP (1) | EP4211682A1 (es) |
| JP (1) | JP2023541250A (es) |
| KR (1) | KR20230062836A (es) |
| CN (1) | CN116171474A (es) |
| AU (1) | AU2021341939A1 (es) |
| BR (1) | BR112023004363A2 (es) |
| CA (1) | CA3192886A1 (es) |
| IL (1) | IL300820A (es) |
| MX (1) | MX2023002593A (es) |
| WO (1) | WO2022055883A1 (es) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9979829B2 (en) | 2013-03-15 | 2018-05-22 | Dolby Laboratories Licensing Corporation | Normalization of soundfield orientations based on auditory scene analysis |
-
2021
- 2021-09-07 MX MX2023002593A patent/MX2023002593A/es unknown
- 2021-09-07 BR BR112023004363A patent/BR112023004363A2/pt unknown
- 2021-09-07 CA CA3192886A patent/CA3192886A1/en active Pending
- 2021-09-07 KR KR1020237008884A patent/KR20230062836A/ko unknown
- 2021-09-07 CN CN202180061795.5A patent/CN116171474A/zh active Pending
- 2021-09-07 AU AU2021341939A patent/AU2021341939A1/en active Pending
- 2021-09-07 WO PCT/US2021/049285 patent/WO2022055883A1/en active Application Filing
- 2021-09-07 IL IL300820A patent/IL300820A/en unknown
- 2021-09-07 EP EP21778326.5A patent/EP4211682A1/en active Pending
- 2021-09-07 US US18/043,905 patent/US20230335142A1/en active Pending
- 2021-09-07 JP JP2023515772A patent/JP2023541250A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230062836A (ko) | 2023-05-09 |
| EP4211682A1 (en) | 2023-07-19 |
| IL300820A (en) | 2023-04-01 |
| AU2021341939A1 (en) | 2023-03-23 |
| CN116171474A (zh) | 2023-05-26 |
| US20230335142A1 (en) | 2023-10-19 |
| CA3192886A1 (en) | 2022-03-17 |
| WO2022055883A1 (en) | 2022-03-17 |
| BR112023004363A2 (pt) | 2023-04-04 |
| JP2023541250A (ja) | 2023-09-29 |
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