MX2023010359A - Metodo y aparato para obtener un coeficiente hoa. - Google Patents
Metodo y aparato para obtener un coeficiente hoa.Info
- Publication number
- MX2023010359A MX2023010359A MX2023010359A MX2023010359A MX2023010359A MX 2023010359 A MX2023010359 A MX 2023010359A MX 2023010359 A MX2023010359 A MX 2023010359A MX 2023010359 A MX2023010359 A MX 2023010359A MX 2023010359 A MX2023010359 A MX 2023010359A
- Authority
- MX
- Mexico
- Prior art keywords
- trigonometric function
- function table
- coils
- longitude
- location information
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
Classifications
-
- 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
-
- 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
- H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
- H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo five- or more-channel type, e.g. virtual surround
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Image Analysis (AREA)
- Stereophonic System (AREA)
- Complex Calculations (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Radar Systems Or Details Thereof (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Esta solicitud proporciona un método y un aparato para obtener un coeficiente HOA. El método para obtener un coeficiente HOA incluye: obtener información de ubicación de un altavoz virtual en una superficie esférica preestablecida, donde la superficie esférica preestablecida incluye círculos M de longitud y N círculos de latitud; obtener, basándose en la información de ubicación y una tabla de funciones trigonométricas de referencia preestablecida, un valor de función trigonométrica correspondiente a la información de ubicación, donde la tabla de funciones trigonométricas de referencia incluye una tabla de funciones trigonométricas de elevación y/o una tabla de funciones trigonométricas de azimut, la tabla de funciones trigonométricas de elevación incluye una pluralidad de valores de función trigonométrica correspondientes a los índices de elevación de una pluralidad de primeros puntos de referencia en un primer círculo de longitud, el primer círculo de longitud es uno de los M círculos de longitud, la tabla de funciones trigonométricas de azimut incluye una pluralidad de valores de función trigonométrica correspondientes a los índices de azimut de una pluralidad de segundos puntos de referencia en un primer círculo de latitud, y el primer círculo de latitud es uno de los N círculos de latitud; y obtener un coeficiente HOA para el altavoz virtual basado en el valor de la función trigonométrica correspondiente a la información de ubicación. En esta solicitud, se puede reducir una cantidad de cálculo en una etapa preliminar y se puede ahorrar espacio de almacenamiento.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110246382.6A CN115038027B (zh) | 2021-03-05 | 2021-03-05 | Hoa系数的获取方法和装置 |
| PCT/CN2022/078823 WO2022184096A1 (zh) | 2021-03-05 | 2022-03-02 | Hoa系数的获取方法和装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2023010359A true MX2023010359A (es) | 2023-09-18 |
Family
ID=83118433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2023010359A MX2023010359A (es) | 2021-03-05 | 2022-03-02 | Metodo y aparato para obtener un coeficiente hoa. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20230421978A1 (es) |
| EP (1) | EP4294047A4 (es) |
| JP (1) | JP2024509179A (es) |
| KR (1) | KR20230152139A (es) |
| CN (4) | CN117395591A (es) |
| BR (1) | BR112023017357A2 (es) |
| CA (1) | CA3212643A1 (es) |
| MX (1) | MX2023010359A (es) |
| WO (1) | WO2022184096A1 (es) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3217653B1 (en) * | 2009-12-24 | 2023-12-27 | Nokia Technologies Oy | An apparatus |
| US9412385B2 (en) * | 2013-05-28 | 2016-08-09 | Qualcomm Incorporated | Performing spatial masking with respect to spherical harmonic coefficients |
| US9466305B2 (en) * | 2013-05-29 | 2016-10-11 | Qualcomm Incorporated | Performing positional analysis to code spherical harmonic coefficients |
| WO2017157803A1 (en) * | 2016-03-15 | 2017-09-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method or computer program for generating a sound field description |
| US10015618B1 (en) * | 2017-08-01 | 2018-07-03 | Google Llc | Incoherent idempotent ambisonics rendering |
| US10674301B2 (en) * | 2017-08-25 | 2020-06-02 | Google Llc | Fast and memory efficient encoding of sound objects using spherical harmonic symmetries |
| BR112020011026A2 (pt) * | 2017-11-17 | 2020-11-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. | aparelho e método para codificar ou decodificar parâmetros de codificação de áudio direcional com o uso de quantização e codificação de entropia |
| CN111542877B (zh) * | 2017-12-28 | 2023-11-24 | 诺基亚技术有限公司 | 空间音频参数编码和相关联的解码的确定 |
-
2021
- 2021-03-05 CN CN202310818006.9A patent/CN117395591A/zh active Pending
- 2021-03-05 CN CN202110246382.6A patent/CN115038027B/zh active Active
- 2021-03-05 CN CN202310821008.3A patent/CN117041856A/zh active Pending
- 2021-03-05 CN CN202310818175.2A patent/CN117278930A/zh active Pending
-
2022
- 2022-03-02 EP EP22762559.7A patent/EP4294047A4/en active Pending
- 2022-03-02 CA CA3212643A patent/CA3212643A1/en active Pending
- 2022-03-02 KR KR1020237033674A patent/KR20230152139A/ko unknown
- 2022-03-02 JP JP2023553523A patent/JP2024509179A/ja active Pending
- 2022-03-02 BR BR112023017357A patent/BR112023017357A2/pt unknown
- 2022-03-02 WO PCT/CN2022/078823 patent/WO2022184096A1/zh active Application Filing
- 2022-03-02 MX MX2023010359A patent/MX2023010359A/es unknown
-
2023
- 2023-09-05 US US18/460,861 patent/US20230421978A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN115038027B (zh) | 2023-07-07 |
| BR112023017357A2 (pt) | 2023-10-03 |
| CN117395591A (zh) | 2024-01-12 |
| US20230421978A1 (en) | 2023-12-28 |
| CN115038027A (zh) | 2022-09-09 |
| WO2022184096A1 (zh) | 2022-09-09 |
| CA3212643A1 (en) | 2022-09-09 |
| CN117278930A (zh) | 2023-12-22 |
| EP4294047A1 (en) | 2023-12-20 |
| CN117041856A (zh) | 2023-11-10 |
| KR20230152139A (ko) | 2023-11-02 |
| EP4294047A4 (en) | 2024-08-14 |
| JP2024509179A (ja) | 2024-02-29 |
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