MX2023013290A - Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. - Google Patents
Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio.Info
- Publication number
- MX2023013290A MX2023013290A MX2023013290A MX2023013290A MX2023013290A MX 2023013290 A MX2023013290 A MX 2023013290A MX 2023013290 A MX2023013290 A MX 2023013290A MX 2023013290 A MX2023013290 A MX 2023013290A MX 2023013290 A MX2023013290 A MX 2023013290A
- Authority
- MX
- Mexico
- Prior art keywords
- high frequency
- audio signal
- frequency reconstruction
- backward
- audio signals
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- 230000010354 integration Effects 0.000 title 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
- 230000017105 transposition Effects 0.000 abstract 1
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
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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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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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
- 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
- G10L19/26—Pre-filtering or post-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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/60—General implementation details not specific to a particular type of compression
- H03M7/6005—Decoder aspects
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/60—General implementation details not specific to a particular type of compression
- H03M7/6011—Encoder aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Amplitude Modulation (AREA)
- Stereophonic System (AREA)
Abstract
Se revela un método para decodificar un flujo de bits de audio codificado. El método incluye recibir el flujo de bits de audio codificado y decodificar los datos de audio para generar una señal de audio de banda baja decodificada. El método incluye además extraer metadatos de reconstrucción de alta frecuencia y filtrar la señal de audio de banda baja decodificada con un banco de filtros de análisis para generar una señal de audio de banda baja filtrada. El método también incluye extraer una bandera que indica si se debe realizar traslación espectral o transposición armónica en los datos de audio y regenerar una porción de banda alta de la señal de audio utilizando la señal de audio de banda baja filtrada y los metadatos de reconstrucción de alta frecuencia de acuerdo con la bandera.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862622205P | 2018-01-26 | 2018-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2023013290A true MX2023013290A (es) | 2023-12-04 |
Family
ID=67394797
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2023013291A MX2023013291A (es) | 2018-01-26 | 2019-01-28 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
| MX2023013293A MX2023013293A (es) | 2018-01-26 | 2019-01-28 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
| MX2020007635A MX2020007635A (es) | 2018-01-26 | 2019-01-28 | Integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. |
| MX2023013292A MX2023013292A (es) | 2018-01-26 | 2020-07-16 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
| MX2023013285A MX2023013285A (es) | 2018-01-26 | 2020-07-16 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
| MX2023013290A MX2023013290A (es) | 2018-01-26 | 2020-07-16 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
Family Applications Before (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2023013291A MX2023013291A (es) | 2018-01-26 | 2019-01-28 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
| MX2023013293A MX2023013293A (es) | 2018-01-26 | 2019-01-28 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
| MX2020007635A MX2020007635A (es) | 2018-01-26 | 2019-01-28 | Integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. |
| MX2023013292A MX2023013292A (es) | 2018-01-26 | 2020-07-16 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
| MX2023013285A MX2023013285A (es) | 2018-01-26 | 2020-07-16 | Integracion compatible hacia atras de tecnicas de reconstruccion de alta frecuencia para se?ales de audio. |
Country Status (19)
| Country | Link |
|---|---|
| US (8) | US11289106B2 (es) |
| EP (1) | EP3743916A4 (es) |
| JP (3) | JP2021507316A (es) |
| KR (2) | KR20230043248A (es) |
| CN (6) | CN113990331A (es) |
| AR (6) | AR114312A1 (es) |
| AU (4) | AU2019212843B2 (es) |
| BR (1) | BR112020014135A2 (es) |
| CA (4) | CA3239871A1 (es) |
| CL (3) | CL2020001922A1 (es) |
| IL (5) | IL309769B1 (es) |
| MA (1) | MA51701A (es) |
| MX (6) | MX2023013291A (es) |
| PH (1) | PH12020500603A1 (es) |
| RU (2) | RU2740688C1 (es) |
| SG (1) | SG11202006703XA (es) |
| TW (3) | TWI702594B (es) |
| UA (1) | UA123426C2 (es) |
| WO (1) | WO2019148112A1 (es) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI771266B (zh) | 2015-03-13 | 2022-07-11 | 瑞典商杜比國際公司 | 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流 |
| TWI752166B (zh) * | 2017-03-23 | 2022-01-11 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
| TWI702594B (zh) | 2018-01-26 | 2020-08-21 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建技術之回溯相容整合 |
| CA3238620A1 (en) | 2018-04-25 | 2019-10-31 | Dolby International Ab | Integration of high frequency reconstruction techniques with reduced post-processing delay |
| EP3785260A1 (en) | 2018-04-25 | 2021-03-03 | Dolby International AB | Integration of high frequency audio reconstruction techniques |
| CN113113032B (zh) * | 2020-01-10 | 2024-08-09 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
| CN113808596A (zh) * | 2020-05-30 | 2021-12-17 | 华为技术有限公司 | 一种音频编码方法和音频编码装置 |
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| TWI752166B (zh) | 2017-03-23 | 2022-01-11 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
| TWI702594B (zh) | 2018-01-26 | 2020-08-21 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建技術之回溯相容整合 |
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2018
- 2018-12-04 TW TW107143346A patent/TWI702594B/zh active
- 2018-12-04 TW TW112126643A patent/TWI834582B/zh active
- 2018-12-04 TW TW109124754A patent/TWI809289B/zh active
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2019
- 2019-01-25 AR ARP190100170A patent/AR114312A1/es active IP Right Grant
- 2019-01-28 CN CN202111240002.4A patent/CN113990331A/zh active Pending
- 2019-01-28 KR KR1020237009765A patent/KR20230043248A/ko not_active Application Discontinuation
- 2019-01-28 SG SG11202006703XA patent/SG11202006703XA/en unknown
- 2019-01-28 MX MX2023013291A patent/MX2023013291A/es unknown
- 2019-01-28 RU RU2020128175A patent/RU2740688C1/ru active
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- 2019-01-28 UA UAA202005476A patent/UA123426C2/uk unknown
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2020
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- 2020-07-13 PH PH12020500603A patent/PH12020500603A1/en unknown
- 2020-07-16 MX MX2023013292A patent/MX2023013292A/es unknown
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- 2020-07-16 MX MX2023013290A patent/MX2023013290A/es unknown
- 2020-07-22 CL CL2020001922A patent/CL2020001922A1/es unknown
- 2020-09-15 CL CL2020002393A patent/CL2020002393A1/es unknown
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2021
- 2021-09-27 AU AU2021240113A patent/AU2021240113B2/en active Active
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2022
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