CN108513243B - Intelligent sound field calibration system - Google Patents
Intelligent sound field calibration system Download PDFInfo
- Publication number
- CN108513243B CN108513243B CN201810165174.1A CN201810165174A CN108513243B CN 108513243 B CN108513243 B CN 108513243B CN 201810165174 A CN201810165174 A CN 201810165174A CN 108513243 B CN108513243 B CN 108513243B
- Authority
- CN
- China
- Prior art keywords
- sound
- information
- audio
- sound field
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/007—Monitoring arrangements; Testing arrangements for public address systems
Abstract
The invention relates to an intelligent sound field calibration system which at least comprises a self-checking part, an audio information acquisition part, a data processing part and at least one sound box, wherein the audio information acquisition part is at least provided with an audio acquirer and a microphone; the data trigger unit in the data processing part triggers at least one sound field adaptation model stored in the storage unit, so that the angle of the sound box in the sound field can be quickly adjusted, when the quantity parameters, the position parameters and the audience position parameters of the sound boxes are changed, the whole sound box playing system can complete real-time and intelligent adjustment of the sound box playing system based on the stored sound field adaptation models, and better hearing experience is brought to users. And the audio acquirer in the audio information acquisition part and different sound data sources acquired by the microphones realize real-time sound field adaptation and sound field adjustment and calibration in a fixed sound field environment aiming at different microphone models, so that the sound box system has stronger compatibility.
Description
Technical Field
The invention relates to the field of audio regulation, in particular to an intelligent sound field calibration system.
Background
The conventional sound playing device mainly comprises a sound box and a sound box adapter device, wherein the sound box is connected with the sound box adapter device, source data or signals are input into the sound box adapter device and then are processed by digital signals, and finally, the digital audio signals are converted into analog audio signals and output to the sound box, so that the conversion from electric signals to sound signals is realized. Important indexes for measuring the sound effect of the sound playing device include stereoscopic impression, location feeling, space feeling, distortion degree, heavy bass, high pitch and the like. The stereo sound is sound having a stereoscopic effect, and if the entire system can restore the originally generated spatial impression to a certain extent from recording to reproduction, the reproduced sound having a spatial distribution characteristic such as a certain degree of azimuth hierarchy level is called stereo sound in the sound technology. A sound playing device with good stereo can improve the definition and intelligibility of information and improve the telepresence of listeners.
When a set of sound system is installed, the problem of matching and connecting the power amplifier and the sound box is avoided. In the aspect of timbre, attention is paid to whether the matching is appropriate in temperature and hardness, and finally the whole set of equipment is restored to be neutral in timbre, which is only considered from the technical aspect. The technical consideration of the power amplifier and the sound box matching and connecting elements are as follows: 1. power matching, 2 impedance matching, 3 damping coefficient matching, 4 sensitivity matching and 5 timbre matching. If we recognize the five points in the matching process, the performance of the used equipment can be greatly and fully exerted.
However, once the existing sound box playing system is installed, the whole sound field system is determined, and sound field re-adaptation and re-calibration cannot be performed according to the type of the microphone, the number of listeners, the position of the listeners in the sound field, and the type of the audio information, so that the expression tension of the sound box system on the audio information is reduced, and the waste of playing resources is caused. Therefore, a personalized and intelligent sound field calibration system is needed to adjust the sound field in real time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an intelligent sound field calibration system, which realizes real-time sound field adaptation and sound field adjustment and calibration in a fixed sound field environment aiming at different microphone models, so that the sound box system has stronger compatibility.
An intelligent sound field calibration system at least comprises a self-checking part, an audio information acquisition part, a data processing part and at least one sound box, wherein the audio information acquisition part is at least provided with an audio acquirer and a microphone; the data processing part acquires the number and the position information of the sound boxes based on the self-checking part to complete frequency band allocation of the audio information data acquired by the audio acquirer, and completes initial angle adjustment of at least one sound box based on the allocated frequency band information of each sound box and the position relation of listeners; the data processing part completes secondary adjustment of the angle of at least one sound box based on the position relation between sound information data, frequency band distribution data and audiences which are acquired by the microphone and are the same as the audio information data acquired by the audio acquirer; and the data processing part stores the number and the position parameters of the sound boxes, the distribution parameters of the sound box frequency bands, the position parameters of audiences and the angle adjustment parameters of the sound boxes as a sound field adaptation model in the data processing part. .
According to a preferred embodiment, the self-checking part finishes name and position marking and statistics on at least one sound box based on the collected at least one sound box identification information and environment information, and performs equivalent grouping.
According to a preferred embodiment, the audio classification unit in the data processing unit completes the frequency band allocation based on the number of equivalent groups of speaker devices counted by the self-checking unit.
According to a preferred embodiment, the speaker adjusting unit in the data processing unit completes the angle adjustment of each equivalent group of speaker devices based on the position relationship between each equivalent group of speaker devices and the audience and the frequency band information allocated to each equivalent group of speaker devices.
According to a preferred embodiment, the data processing unit is at least further provided with a DSP processor, and the DSP processor performs frequency band marking and position information marking on the audio data acquired by the audio information acquisition unit based on the frequency band allocation result completed by the audio classification unit, and sends the marked audio data to the position information corresponding speaker device to complete playing of the audio information in the corresponding frequency band.
According to a preferred embodiment, the data processing part is further provided with at least a storage unit, and the storage unit is used for completing data acquisition and recording of the sound field adaptation model including the number and position parameters of the sound boxes, the sound box frequency band allocation parameters, the audience position parameters and the sound box angle adjustment parameters.
According to a preferred embodiment, the data processing unit is further provided with at least one data triggering unit, and the data triggering unit is used for triggering at least one sound field adaptation model stored in the storage unit based on the number parameters, the position parameters and the audience position parameters of the sound boxes collected by the self-checking unit, so as to complete the rapid adjustment of the angles of the sound boxes in the sound field.
According to a preferred embodiment, the environment information is length, width and height information of a space where the sound box is located; the environment information also includes location information of each speaker and listener location information.
According to a preferred embodiment, the environmental information is uploaded to the self-checking unit by the user via the smart terminal.
Compared with the prior art, the invention has the beneficial effects that: the real-time sound field adaptation and sound field adjustment and calibration of different microphone models in a fixed sound field environment are realized through the audio acquirer in the audio information acquisition part and different sound data sources acquired by the microphones, so that the sound box system has stronger compatibility.
The audio information is processed by the data processing part and is sent to the corresponding sound box equipment. The data trigger unit in the data processing part triggers at least one sound field adaptation model stored in the storage unit to complete the rapid adjustment of the angle of the sound box in the sound field, so that when the quantity parameters, the position parameters and the audience position parameters of the sound boxes are changed, the whole sound box playing system can complete the real-time and intelligent adjustment of the sound box playing system based on the stored sound field adaptation models, and better hearing experience is brought to users.
Drawings
Fig. 1 is a functional block diagram of an intelligent sound field calibration system according to the present invention.
Detailed Description
The following describes the technical solution of the present invention in further detail, but the scope of the present invention is not limited to the following.
Example (b):
an intelligent sound field calibration system is shown in fig. 1. The sound field calibration system at least comprises a self-checking part, an audio information acquisition part, a data processing part and at least one loudspeaker box.
Preferably, the self-checking part is a data collector for collecting and classifying sound box information and collecting environmental information. The audio information acquisition part is used for realizing audio information acquisition, for example, completing audio information next week through a network or directly completing specific audio information acquisition from a hard disk.
The self-checking part finishes name and position marking and statistics on at least one sound box based on the collected identification information and the environment information of the at least one sound box, and performs equivalent grouping. Specifically, the sound boxes are equivalently grouped into one sound effect group by equivalently grouping at least one sound box at the same position in the sound field or at symmetrical positions on the left side and the right side of a listener.
Preferably, the environment information is length, width and height information of a space where the sound box is located. The environment information also includes location information of each speaker and listener location information. Further, the environmental information is uploaded to the self-checking part by the user through the intelligent terminal.
Preferably, the audio information acquisition part is at least provided with an audio acquirer and a microphone. Respectively used for completing the collection of background music data and original singing voice data.
Preferably, the data processing part at least comprises an audio classification unit, a sound box adjusting unit, a DSP processor, a storage unit and a triggering unit, and the data processing part is used for finishing audio information processing and sending the audio information to corresponding sound box equipment. Preferably, the data processing part completes the allocation of the audio information frequency bands acquired by the audio information acquisition part based on the number and the position information of the sound boxes acquired by the self-inspection part.
The audio classification unit is used for completing frequency band information distribution and playing position distribution of the audio information collected by the audio information collection part. Preferably, the audio classification unit completes frequency band allocation based on the number of equivalent groups of the loudspeaker box devices counted by the self-checking part.
The sound box adjusting unit is used for adjusting the angle of each sound box. The sound box adjusting unit completes angle adjustment of each equivalent group of sound box equipment based on the position relation between each equivalent group of sound box equipment and the audience and the frequency band information distributed by each equivalent group of sound box equipment.
Preferably, the sound box adjusting unit completes frequency band allocation of the audio information data acquired by the audio acquirer based on the number and position information of the sound boxes acquired by the self-checking unit, and completes initial adjustment of the angle of at least one sound box based on the allocated frequency band information of each sound box and the position relationship of the audience.
Further, the sound box adjusting unit completes secondary adjustment of the angle of at least one sound box based on the position relation between sound information data, frequency band distribution data and audiences which are acquired by the microphone and are the same as the audio information data acquired by the audio acquirer.
And the DSP is used for distributing the collected audio information to specific sound box equipment. Preferably, the DSP processor performs frequency band labeling and position information labeling on the audio data acquired by the audio information acquisition unit based on the frequency band allocation result completed by the audio classification unit. Specifically, the DSP processor labels the frequency band allocation information and the position allocation information as labeling data in the acquired audio information. And simultaneously, the DSP sends the marked audio data to the position information corresponding to the sound box equipment to complete the playing of the audio information in the corresponding frequency band.
And at least one sound box device completes the reception of the audio data sent by the DSP processor and completes the playing of the audio data in the corresponding frequency band according to the frequency band marking information in the received audio data.
The storage unit in the data processing part is used for completing data acquisition and recording of a sound field adaptation model comprising the number and position parameters of the sound boxes, the frequency band distribution parameters of the sound boxes, the position parameters of audiences and the angle adjustment parameters of the sound boxes. Therefore, the storage unit can finish storing at least one sound field adaptation model in the data processing part, so that the sound field adaptation model can be rapidly triggered and called in the subsequent use process.
The data trigger unit in the data processing part is triggered with at least one sound field adaptation model stored in the storage unit based on the number parameters, the position parameters and the audience position parameters of the sound boxes acquired by the self-detection part in real time, so that the rapid adjustment of the angles of the sound boxes in the sound field is completed. Therefore, when the quantity parameters, the position parameters and the audience position parameters of the sound boxes are changed, the whole sound box playing system can complete real-time and intelligent adjustment of the sound box playing system based on the stored sound field adaptation model, and better hearing experience is brought to users.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. An intelligent sound field calibration system is characterized by at least comprising a self-checking part, an audio information acquisition part, a data processing part and at least one sound box, wherein the audio information acquisition part is at least provided with an audio acquirer and a microphone;
the data processing part acquires the number and the position information of the sound boxes based on the self-checking part to complete frequency band allocation of the audio information data acquired by the audio acquirer, and completes initial angle adjustment of at least one sound box based on two parameters of the frequency band information allocated to each sound box and the position relation between the sound boxes and listeners;
the data processing part completes secondary adjustment of the angle of at least one sound box based on the position relation between sound information data, frequency band distribution data and audiences which are acquired by the microphone and are the same as the audio information data acquired by the audio acquirer;
and the data processing part stores the number and the position parameters of the sound boxes, the distribution parameters of the sound box frequency bands, the position parameters of audiences and the angle adjustment parameters of the sound boxes as a sound field adaptation model in the data processing part.
2. The intelligent sound field calibration system according to claim 1, wherein the self-checking section completes name and position labeling and statistics for at least one sound box based on the collected at least one sound box identification information and environment information, and performs equivalent grouping.
3. The intelligent sound field calibration system of claim 2, wherein the audio classification unit in the data processing section performs frequency band allocation based on the number of equivalent groups of speaker devices counted by the self-test section.
4. The system according to claim 3, wherein the speaker adjusting unit in the data processing unit performs the angle adjustment of each equivalent group of speaker devices based on two parameters, namely, the frequency band information allocated to each equivalent group of speaker devices and the position relationship between speakers and listeners.
5. The system according to claim 4, wherein the data processing unit further comprises at least a DSP, and the DSP performs frequency band labeling and position information labeling on the audio data collected by the audio information collection unit based on the frequency band allocation result completed by the audio classification unit, and sends the labeled audio data to the speaker device corresponding to the position information to complete playing of the audio information in the corresponding frequency band.
6. The intelligent sound field calibration system of claim 5 wherein the data processing section further comprises at least a storage unit for data acquisition and recording of sound field adaptation models including the number and location of speakers, speaker band allocation parameters, listener location parameters, and speaker angle adjustment parameters.
7. The intelligent sound field calibration system according to claim 6, wherein the data processing unit further comprises at least one data triggering unit, and the data triggering unit triggers the at least one sound field adaptive model stored in the storage unit based on the number of speakers, the location of speakers, and the location of audience parameters collected by the self-checking unit, so as to complete the fast adjustment of the angles of the speakers in the sound field.
8. The intelligent sound field calibration system of claim 2 wherein the environmental information is length, width and height information of a space in which the sound box is located; the environment information also includes location information of each speaker and listener location information.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810165174.1A CN108513243B (en) | 2018-02-28 | 2018-02-28 | Intelligent sound field calibration system |
| PCT/CN2019/082365 WO2019166029A1 (en) | 2018-02-28 | 2019-04-12 | Smart sound field calibration system, smart sound field adaptation system, and smart speech processing system |
| PCT/CN2019/082366 WO2019166030A1 (en) | 2018-02-28 | 2019-04-12 | Smart sound field adaptation system, smart sound field calibration system, and smart speech processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810165174.1A CN108513243B (en) | 2018-02-28 | 2018-02-28 | Intelligent sound field calibration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108513243A CN108513243A (en) | 2018-09-07 |
| CN108513243B true CN108513243B (en) | 2020-12-08 |
Family
ID=63375788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810165174.1A Active CN108513243B (en) | 2018-02-28 | 2018-02-28 | Intelligent sound field calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108513243B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019166029A1 (en) * | 2018-02-28 | 2019-09-06 | 成都星环科技有限公司 | Smart sound field calibration system, smart sound field adaptation system, and smart speech processing system |
| CN113923561A (en) * | 2020-07-08 | 2022-01-11 | 阿里巴巴集团控股有限公司 | Intelligent sound box sound effect adjusting method and device |
| CN112104947B (en) * | 2020-09-11 | 2022-08-09 | 冠捷显示科技（厦门）有限公司 | Self-adaptive sound field control method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203912154U (en) * | 2014-04-22 | 2014-10-29 | 深圳市鲁光电子科技有限公司 | Sound box control device and audio system |
| CN104125524A (en) * | 2013-04-23 | 2014-10-29 | 华为技术有限公司 | Sound effect adjustment method, apparatus and devices |
| WO2015108794A1 (en) * | 2014-01-18 | 2015-07-23 | Microsoft Technology Licensing, Llc | Dynamic calibration of an audio system |
| CN106851469A (en) * | 2017-02-16 | 2017-06-13 | 深圳创维－Rgb电子有限公司 | It is a kind of to adjust the method and apparatus that audio amplifier exports audio |
| EP3182732A1 (en) * | 2015-12-18 | 2017-06-21 | Thomson Licensing | Apparatus and method for detecting loudspeaker connection or positionning errors during calibration of a multi channel audio system |
| CN106998514A (en) * | 2016-01-26 | 2017-08-01 | 湖南汇德电子有限公司 | Intelligent multichannel collocation method and system |
| CN107396274A (en) * | 2017-07-07 | 2017-11-24 | 广州飞达音响股份有限公司 | The method, apparatus and system of active linear array sound equipment sound field adjustment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4127248B2 (en) * | 2004-06-23 | 2008-07-30 | ヤマハ株式会社 | Speaker array device and audio beam setting method for speaker array device |
| WO2015175511A1 (en) * | 2014-05-13 | 2015-11-19 | Crutchfield William G | Virtual simulation of spatial audio characteristics |
| CN106817657B (en) * | 2015-12-02 | 2019-03-22 | 瑞轩科技股份有限公司 | System, audio signal output device and its method of adjust automatically voice directions |
| US9781537B2 (en) * | 2016-01-12 | 2017-10-03 | Disney Enterprises, Inc. | Systems and methods for adjusting audio based on ambient sounds |
| CN206349145U (en) * | 2016-12-28 | 2017-07-21 | 北京地平线信息技术有限公司 | Audio signal processing apparatus |
-
2018
- 2018-02-28 CN CN201810165174.1A patent/CN108513243B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125524A (en) * | 2013-04-23 | 2014-10-29 | 华为技术有限公司 | Sound effect adjustment method, apparatus and devices |
| WO2015108794A1 (en) * | 2014-01-18 | 2015-07-23 | Microsoft Technology Licensing, Llc | Dynamic calibration of an audio system |
| CN203912154U (en) * | 2014-04-22 | 2014-10-29 | 深圳市鲁光电子科技有限公司 | Sound box control device and audio system |
| EP3182732A1 (en) * | 2015-12-18 | 2017-06-21 | Thomson Licensing | Apparatus and method for detecting loudspeaker connection or positionning errors during calibration of a multi channel audio system |
| CN106998514A (en) * | 2016-01-26 | 2017-08-01 | 湖南汇德电子有限公司 | Intelligent multichannel collocation method and system |
| CN106851469A (en) * | 2017-02-16 | 2017-06-13 | 深圳创维－Rgb电子有限公司 | It is a kind of to adjust the method and apparatus that audio amplifier exports audio |
| CN107396274A (en) * | 2017-07-07 | 2017-11-24 | 广州飞达音响股份有限公司 | The method, apparatus and system of active linear array sound equipment sound field adjustment |
Non-Patent Citations (1)
| Title |
|---|
| 《某政府会议室音视频系统设计与调试》;雷鸣;《电声技术》;20140731;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108513243A (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Colloms | High performance loudspeakers: optimising high fidelity loudspeaker systems | |
| CN108513243B (en) | Intelligent sound field calibration system | |
| JP4921470B2 (en) | Method and apparatus for generating and processing parameters representing head related transfer functions | |
| CN105556837B (en) | Dynamic range control for various playback environments | |
| CN1898988B (en) | Audio output apparatus | |
| CN110537221A (en) | Two stages audio for space audio processing focuses | |
| CN104937843B (en) | Measure the method and apparatus of high-order ambisonics loudness level | |
| CN105531759A (en) | Loudness adjustment for downmixed audio content | |
| CN101366177A (en) | Audio dosage control | |
| KR20050083928A (en) | Method for processing audio data and sound acquisition device therefor | |
| CN110337819A (en) | There is the analysis of the Metadata of multiple microphones of asymmetric geometry in equipment | |
| CN101162894A (en) | Sound-effect processing equipment and method | |
| CN108513192A (en) | A kind of intelligence sound field adaption system | |
| Capel | Newnes Audio and Hi-fi Engineer's Pocket Book | |
| CN210270867U (en) | Automatic volume adjusting system of multimedia terminal equipment | |
| WO2019166030A1 (en) | Smart sound field adaptation system, smart sound field calibration system, and smart speech processing system | |
| US20150124995A1 (en) | Public address system with wireless audio transmission | |
| CN115604630A (en) | Sound field expansion method, audio apparatus, and computer-readable storage medium | |
| Terrell et al. | An offline, automatic mixing method for live music, incorporating multiple sources, loudspeakers, and room effects | |
| CN108495238A (en) | A kind of intelligent sound processing system | |
| Davis | Audio and electroacoustics | |
| TWI752487B (en) | System and method for generating a 3d spatial sound field | |
| Mores | 12. Music Studio Studio Technology | |
| WO2024024468A1 (en) | Information processing device and method, encoding device, audio playback device, and program | |
| US20240056735A1 (en) | Stereo headphone psychoacoustic sound localization system and method for reconstructing stereo psychoacoustic sound signals using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |