CN114697808A - Sound orientation control method and sound orientation control device - Google Patents
Sound orientation control method and sound orientation control device Download PDFInfo
- Publication number
- CN114697808A CN114697808A CN202011643821.9A CN202011643821A CN114697808A CN 114697808 A CN114697808 A CN 114697808A CN 202011643821 A CN202011643821 A CN 202011643821A CN 114697808 A CN114697808 A CN 114697808A
- Authority
- CN
- China
- Prior art keywords
- sound
- optimal
- receiving position
- playing
- control device
- 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.)
- Granted
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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
Abstract
The application relates to the technical field of multimedia, in particular to a sound orientation control method and a sound orientation control device, wherein the sound orientation control method comprises the following steps: and detecting the position of the audio-visual user in the target area, acquiring the optimal sound receiving position according to the detected position of the audio-visual user, and finally, aiming at the optimal sound receiving position to play the sound. The sound directional control method detects the position of the audio-visual user, obtains the optimal sound receiving position according to the position, and finally aims at the optimal sound receiving position to play sound, namely, specifies the detailed sound propagation direction according to the actual distribution condition of the on-site audio-visual user, so that all the audio-visual users obtain the optimal audio experience.
Description
Technical Field
The present application relates to the field of multimedia technologies, and in particular, to a sound direction control method and a sound direction control apparatus.
Background
At present, multimedia teaching or conferences and the like mostly use a projector and a loudspeaker to synchronously play videos and sounds, and sound playing directions cannot be reasonably set according to specific audio-visual user distribution conditions, so that audio-visual users cannot obtain optimal audio experience.
Disclosure of Invention
The application aims to provide a sound orientation control method and a sound orientation control device, which solve the technical problem that in the prior art, the sound playing direction cannot be reasonably set according to the specific audio-visual user distribution condition in multimedia teaching or a conference, so that the audio-visual user cannot obtain the optimal auditory experience.
The application provides a sound directional control method, which comprises the following steps:
detecting a location of an audiovisual user within a target area;
acquiring an optimal sound receiving position according to the detected position of the audio-visual user;
and playing the sound aiming at the optimal sound receiving position.
In the above technical solution, further, when the number of audiovisual users is one, the position of the audiovisual user is the optimal sound receiving position;
when the number of the viewing users is plural, the positions of the respective viewing users in the target area are detected, and the center positions of the plurality of viewing users are calculated as the optimum sound receiving positions based on the detected respective positions.
In any of the above technical solutions, further, after the optimal sound receiving position is obtained according to the detected position of the audiovisual user, the sound playing component is rotated to align with the optimal sound receiving position to play sound, and the rotation angle is 360 °.
In any of the above technical solutions, after the optimal sound receiving position is obtained, the sound playing component is controlled to rotate to align the optimal sound receiving position, or the optimal sound receiving position is sent to the user, so that the user adjusts the position of the sound playing component according to the optimal sound receiving position to align the optimal sound receiving position.
The application also provides a sound orientation control device, sound orientation control device is including detecting component, sound broadcast subassembly and controlling means, detect the component and sound broadcast subassembly respectively with controlling means communication connection.
In the above technical solution, further, the sound direction control device further includes a protective housing, and the protective housing is covered outside the sound playing component; the detection member is provided to the protection cover.
In any of the above technical solutions, further, the sound playing component includes a driving device, a transmission mechanism, a mounting member, and a sound playing member; wherein the sound playing member is provided to the mounting member; the driving device can drive the mounting component to rotate together with the sound playing component through the transmission mechanism; the driving device is in communication connection with the control device; the protective outer cover is provided with a sound transmission through hole corresponding to the sound playing component.
In any of the above technical solutions, further, the transmission mechanism includes a gear and a rack; wherein the rack is arranged around the periphery of the mounting component;
the driving device is arranged on the mounting component, the gear is sleeved on an output shaft of the driving device, and the gear is meshed with the rack; the mounting member is rotatably connected with the protective housing.
In any of the above technical solutions, further, the number of the detection members is two, one of the detection members is disposed on one side of the protection cover, the other of the detection members is disposed on the opposite side of the protection cover, and the two detection members are respectively used for detecting positions of the left and right audiovisual users in the target area;
the number of the sound playing components is also two, and the two sound playing components are sequentially arranged at intervals along the circumferential direction of the mounting component.
In any of the above technical solutions, further, the detecting member is a sensor or an imaging member.
Compared with the prior art, the beneficial effect of this application is:
the sound directional control method detects the position of the audio-visual user, obtains the optimal sound receiving position according to the position, and finally aims at the optimal sound receiving position to play sound, namely, specifies the detailed sound propagation direction according to the actual distribution condition of the on-site audio-visual user, so that all the audio-visual users obtain the optimal audio experience.
The sound orientation control device provided by the application is based on the sound orientation control method, and the sound orientation control device can enable an audio-visual user to obtain the best auditory experience.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings used in the detailed description or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart of a sound direction control method according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a sound direction control apparatus according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a sound direction control apparatus according to an embodiment of the present application;
fig. 4 is a schematic partial structural diagram of a sound direction control apparatus according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another part of a sound direction control apparatus according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another part of a sound direction control device according to an embodiment of the present application;
fig. 7 is a cross-sectional view of a sound direction control device provided in an embodiment of the present application.
Reference numerals:
1-driving device, 2-transmission mechanism, 21-gear, 22-rack, 3-mounting component, 4-sound playing component, 5-protective outer cover, 51-sound transmission through opening, 6-connecting shaft and 7-detection component.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
A sound direction control method and a sound direction control apparatus according to some embodiments of the present application are described below with reference to fig. 1 to 7.
Example one
Referring to fig. 1, an embodiment of the present application provides a sound direction control method, including the steps of:
and step 300, finally, aiming at the optimal sound receiving position to play the sound.
Therefore, the sound orientation control method detects the position of the audio-visual user, obtains the optimal sound receiving position according to the position, and finally plays the sound aiming at the optimal sound receiving position, namely, the detailed sound propagation direction is appointed according to the actual distribution condition of the on-site audio-visual user, so that all the audio-visual users obtain the optimal hearing experience.
In this embodiment, preferably, when the number of the audiovisual users is one, the position of the audiovisual user is the optimal sound receiving position, that is, when only one audiovisual user exists on the site, the position of the audiovisual user is the optimal sound receiving position, and only the sound playing at the position needs to be aligned;
when the number of the audio-visual users is multiple, the positions of the audio-visual users in the target area are detected, the central positions of the audio-visual users are calculated according to the detected positions to serve as the optimal sound receiving positions, and then the sound is played aiming at the central positions, so that the audio-visual users at the rest positions with the central positions as the center can obtain better audio experience.
In this embodiment, it is preferable that the detailed operation steps regarding "play sound at the optimum sound receiving position" are as follows:
that is, after acquiring the optimum sound receiving position according to the detected position of the audio-visual user, the sound playing member is rotated so as to play the sound aligned with the optimum sound receiving position, and the rotation angle is 360 °.
According to the above description, the sound playing component can rotate 360 degrees, which solves the problem of adjusting the propagation direction of the sound within the range of 360 degrees around the projection, and enables the audio-visual user to obtain better hearing experience.
In this embodiment, preferably, after the optimal sound receiving position is acquired, the sound playing member is controlled to rotate to align the optimal sound receiving position, or the optimal sound receiving position is sent to the user, so that the user adjusts the position of the sound playing member according to the optimal sound receiving position to align the optimal sound receiving position.
Two processing modes are explained above, specifically as follows:
the first is a mode of automatically controlling and adjusting the sound transmission component, namely after the optimal sound receiving position is obtained, automatically controlling the sound playing component to rotate to align the optimal sound receiving position;
the second is a manner of manually adjusting the sound transmission component, that is, after the optimal sound receiving position is obtained, the operator uses the remote control "+", "-" buttons, or the mobile phone app interface finger to rotate or touch the "+", "" buttons according to the optimal sound receiving position, so as to adjust the position of the sound transmission component.
Therefore, the two modes can be both adopted, and more selection modes are provided for the user so as to meet different experiences of the user.
Example two
An embodiment of the present application further provides a sound direction control apparatus, based on the sound direction control method described in the first embodiment, so that all the beneficial technical effects of the sound direction control method are achieved, and details are not repeated herein.
In this embodiment, preferably, as shown in fig. 2 to 4, the sound direction control device includes a detection member 7, a sound playing assembly, and a control device, and the detection member 7 and the sound playing assembly are respectively connected to the control device in a communication manner.
The operation of the sound direction control device is as follows:
firstly, the position of the audiovisual user in the target area is detected by the detection component 7, then the obtained position information is transmitted to the control device, the control device calculates the optimal sound receiving position (specifically, the obtaining process of the optimal sound receiving position is already explained in the first embodiment, and is not described here), and finally, the sound playing component is used to play the sound aiming at the optimal sound receiving position.
Therefore, a reasonable sound control method is realized, and the audio-visual user can obtain the best auditory experience.
In this embodiment, preferably, as shown in fig. 4 to 6, the sound playing assembly includes a driving device 1, a transmission mechanism 2, a mounting member 3, and a sound playing member 4; wherein the sound playing member 4 is arranged on the mounting member 3; the drive device 1 is able to drive the mounting member 3 in rotation together with the sound playing member 4 via the transmission 2.
As can be seen from the above description, after the control device calculates the optimal sound receiving position, the control driving device 1 drives the mounting member 3 and the sound playing member 4 to rotate to the position aligned with the optimal sound receiving position through the transmission mechanism, so that the audiovisual user at each position can obtain the optimal listening experience.
In this embodiment, preferably, as shown in fig. 2 to 4 and 7, the sound direction control device further comprises a protective housing 5, the protective housing 5 is arranged outside the driving device 1, the transmission mechanism 2, the mounting member 3 and the sound playing member 4, the protective housing 5 is provided with a sound propagation through hole 51 corresponding to the sound playing member 4, the detecting member 7 is embedded in the side wall of the protective housing 5, and is located above the driving device 1, the transmission mechanism 2, the mounting member 3 and the sound playing member 4, it can be seen that the sound playing assembly and the detecting member 7 are integrated together, which facilitates the arrangement, saves the steps of respectively installing the two, and be convenient for whole and accomodate, be difficult for losing, of course, the sound broadcast subassembly and the assembled relation of detecting component 7 and protection dustcoat 5 are not only limited to this structure, still can set up according to actual need.
The transmission mechanism 2 comprises a gear 21 and a rack 22; wherein, the rack 22 is arranged around the periphery of the mounting component 3; the driving device 1 is arranged on the mounting component 3, the gear 21 is sleeved on the output shaft of the driving device 1, and the gear 21 is meshed with the rack 22; the mounting member 3 is rotatably connected to the protective housing 5.
As can be seen from the above description, the protective cover 5 is fixed at a position to be installed (for example, may be fixed on a wall or an object such as a desk), the driving device 1 drives the gear 21 to rotate, and due to the engagement between the gear 21 and the annular rack 22, the gear 21, together with the driving device 1 and the mounting member 3, rotates around the connecting shaft 6 between the mounting member 3 and the protective cover 5, so that 360 ° rotation of the shooting member on the mounting member 3 is achieved, and the application range is wider.
This scheme is than putting a plurality of loudspeaker in the target area and specifically seting up the quantity that corresponds loudspeaker according to user's position this application has saved loudspeaker, the cost is reduced, especially to the equipment that combines a plurality of loudspeaker and projecting apparatus together, a plurality of loudspeaker may influence the projection effect, and above-mentioned problem then can not appear in the structure of this application, in addition, the shooting component of this application belongs to 360 infinitely variable control, can make the shooting component location stop in arbitrary position department, and is more practical.
The protective housing 5 also protects the driving device 1, the transmission mechanism 2, the mounting member 3, and the sound playing member 4, and thus has dustproof and waterproof functions.
In this embodiment, as shown in fig. 2, 3 and 7, the number of the detection members 7 is preferably two, one of the detection members 7 is disposed on one side of the protective cover 5, the other detection member 7 is disposed on the opposite side of the protective cover 5, and the two detection members 7 are respectively used for detecting the positions of the left and right audiovisual users in the target area.
Two detection means 7 are used to detect the positions of the left and right users in the target area, respectively, to improve the detection efficiency, and correspondingly, two sound playing means 4 corresponding to each other are provided to the two detection means 7, respectively.
It can be seen that the target area is divided into a left part and a right part, the two detection components 7 are respectively responsible for detecting the position information of the audio-visual users in each part area, the center position of each part area is calculated, and the two sound playing components 4 are adopted to respectively aim at the corresponding center positions to emit sound, so that the audio-visual users in each area can obtain the best audio experience.
Of course, the number of the detecting members 7 and the sound playing members 4 is not limited to that described in the embodiment, and may be set according to actual needs, and different combinations are performed, for example, two detecting members 7 match one sound playing member 4, and so on.
In this embodiment, the detecting component 7 is preferably a sensor or a shooting component (the shooting component can be a camera or a camera, etc.), which can detect the position information of the audiovisual user, and is simple and convenient to operate and convenient to purchase.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A sound direction control method, comprising the steps of:
detecting a location of an audiovisual user within a target area;
acquiring an optimal sound receiving position according to the detected position of the audio-visual user;
and playing sound aiming at the optimal sound receiving position.
2. The sound direction control method according to claim 1, wherein when the number of audiovisual users is one, the position of the audiovisual user is the optimal sound receiving position;
when the number of the viewing users is plural, the positions of the respective viewing users in the target area are detected, and the center positions of the plurality of viewing users are calculated as the optimum sound receiving positions based on the detected respective positions.
3. The sound direction control method according to claim 1, wherein after the acquisition of the optimal sound receiving position according to the detected position of the audio-visual user, the sound playing member is rotated to play sound aligned with the optimal sound receiving position, and the angle of rotation is 360 °.
4. The sound direction control method according to claim 3, wherein after the optimal sound receiving position is obtained, controlling a sound playing member to rotate to align with the optimal sound receiving position, or sending the optimal sound receiving position to a user, so that the user adjusts the position of the sound playing member according to the optimal sound receiving position to align with the optimal sound receiving position.
5. The sound orientation control device is characterized by comprising a detection component, a sound playing component and a control device, wherein the detection component and the sound playing component are respectively in communication connection with the control device.
6. The sound direction control device of claim 5, further comprising a protective enclosure disposed outside the sound playing assembly; the detection member is provided to the protection cover.
7. The sound direction control device of claim 6, wherein the sound playing assembly comprises a drive device, a transmission mechanism, a mounting member, a sound playing member; wherein the sound playing member is provided to the mounting member; the driving device can drive the mounting component to rotate together with the sound playing component through the transmission mechanism; the driving device is in communication connection with the control device; the protective outer cover is provided with a sound transmission through hole corresponding to the sound playing component.
8. The sound direction control device of claim 7, wherein the transmission mechanism comprises a gear and a rack; wherein the rack is arranged around the periphery of the mounting member; the driving device is arranged on the mounting component, the gear is sleeved on an output shaft of the driving device, and the gear is meshed with the rack; the mounting member is rotatably connected with the protective housing.
9. The sound direction control apparatus according to claim 7, wherein the number of the detection members is two, one of the detection members is provided on one side of the protective cover, the other of the detection members is provided on the opposite side of the protective cover, and the two detection members are respectively used for detecting the positions of the left and right audiovisual users in the target area;
the number of the sound playing components is also two, and the two sound playing components are sequentially arranged at intervals along the circumferential direction of the mounting component.
10. The sound direction control device of claim 5, wherein the detection means is a sensor or a camera means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011643821.9A CN114697808B (en) | 2020-12-31 | 2020-12-31 | Sound orientation control method and sound orientation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011643821.9A CN114697808B (en) | 2020-12-31 | 2020-12-31 | Sound orientation control method and sound orientation control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114697808A true CN114697808A (en) | 2022-07-01 |
| CN114697808B CN114697808B (en) | 2023-08-08 |
Family
ID=82136210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011643821.9A Active CN114697808B (en) | 2020-12-31 | 2020-12-31 | Sound orientation control method and sound orientation control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114697808B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140254811A1 (en) * | 2013-03-05 | 2014-09-11 | Panasonic Corporation | Sound reproduction device |
| US20140321680A1 (en) * | 2012-01-11 | 2014-10-30 | Sony Corporation | Sound field control device, sound field control method, program, sound control system and server |
| US20150086035A1 (en) * | 2013-09-25 | 2015-03-26 | Hyundai Motor Company | Sound control system and method for vehicle |
| CN105101027A (en) * | 2014-05-08 | 2015-11-25 | 大北公司 | Real-time Control Of An Acoustic Environment |
| CN107656718A (en) * | 2017-08-02 | 2018-02-02 | 宇龙计算机通信科技(深圳)有限公司 | A kind of audio signal direction propagation method, apparatus, terminal and storage medium |
| US20180206055A1 (en) * | 2015-07-14 | 2018-07-19 | Harman International Industries, Incorporated | Techniques for generating multiple auditory scenes via highly directional loudspeakers |
| CN108347673A (en) * | 2018-03-30 | 2018-07-31 | 上海与德科技有限公司 | A kind of control method of intelligent sound box, device, storage medium and intelligent sound box |
| CN108429940A (en) * | 2018-04-02 | 2018-08-21 | 歌尔股份有限公司 | Loudspeaker assembly, sound-box device and its control method |
| CN108696809A (en) * | 2018-08-24 | 2018-10-23 | 维沃移动通信有限公司 | A kind of speaker unit, electronic equipment and loud speaker go out sound controlling method |
| CN109327763A (en) * | 2018-12-07 | 2019-02-12 | 歌尔科技有限公司 | A kind of sound equipment, play system and play system control method |
| US20190069114A1 (en) * | 2017-08-31 | 2019-02-28 | Acer Incorporated | Audio processing device and audio processing method thereof |
| CN209134622U (en) * | 2018-12-07 | 2019-07-19 | 歌尔科技有限公司 | A kind of sound equipment and a kind of play system |
| KR102034267B1 (en) * | 2018-09-14 | 2019-10-18 | 주식회사 피티지 | Apparatus for transmission of directional sound |
| CN111683325A (en) * | 2019-03-11 | 2020-09-18 | 深圳市冠旭电子股份有限公司 | Sound effect control method and device, sound box, wearable device and readable storage medium |
-
2020
- 2020-12-31 CN CN202011643821.9A patent/CN114697808B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140321680A1 (en) * | 2012-01-11 | 2014-10-30 | Sony Corporation | Sound field control device, sound field control method, program, sound control system and server |
| US20140254811A1 (en) * | 2013-03-05 | 2014-09-11 | Panasonic Corporation | Sound reproduction device |
| US20150086035A1 (en) * | 2013-09-25 | 2015-03-26 | Hyundai Motor Company | Sound control system and method for vehicle |
| CN105101027A (en) * | 2014-05-08 | 2015-11-25 | 大北公司 | Real-time Control Of An Acoustic Environment |
| US20180206055A1 (en) * | 2015-07-14 | 2018-07-19 | Harman International Industries, Incorporated | Techniques for generating multiple auditory scenes via highly directional loudspeakers |
| CN107656718A (en) * | 2017-08-02 | 2018-02-02 | 宇龙计算机通信科技(深圳)有限公司 | A kind of audio signal direction propagation method, apparatus, terminal and storage medium |
| US20190069114A1 (en) * | 2017-08-31 | 2019-02-28 | Acer Incorporated | Audio processing device and audio processing method thereof |
| CN108347673A (en) * | 2018-03-30 | 2018-07-31 | 上海与德科技有限公司 | A kind of control method of intelligent sound box, device, storage medium and intelligent sound box |
| CN108429940A (en) * | 2018-04-02 | 2018-08-21 | 歌尔股份有限公司 | Loudspeaker assembly, sound-box device and its control method |
| CN108696809A (en) * | 2018-08-24 | 2018-10-23 | 维沃移动通信有限公司 | A kind of speaker unit, electronic equipment and loud speaker go out sound controlling method |
| KR102034267B1 (en) * | 2018-09-14 | 2019-10-18 | 주식회사 피티지 | Apparatus for transmission of directional sound |
| CN109327763A (en) * | 2018-12-07 | 2019-02-12 | 歌尔科技有限公司 | A kind of sound equipment, play system and play system control method |
| CN209134622U (en) * | 2018-12-07 | 2019-07-19 | 歌尔科技有限公司 | A kind of sound equipment and a kind of play system |
| CN111683325A (en) * | 2019-03-11 | 2020-09-18 | 深圳市冠旭电子股份有限公司 | Sound effect control method and device, sound box, wearable device and readable storage medium |
Non-Patent Citations (4)
| Title |
|---|
| MARTIN SCHNEIDER: "wave-domain loudspeaker signal decorrelation for system identification in multichannel audio reproduction scenarios", 《2013 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS，SPEECH AND SIGNAL PROCESSING》 * |
| 左自磊: "基于情境感知的智能家居***设计研究-小米智能家居为例", 《中国优秀硕士论文全文数据库信息科技辑》 * |
| 郑长勇;: "AT89C51在声音录放***中的应用", no. 07 * |
| 顾超: "一种自主跟随机器人的研究与设计", 《中国优秀硕士论文全文数据库信息科技辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114697808B (en) | 2023-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI751109B (en) | Array microphone system and method of assembling the same | |
| CN108696809B (en) | Loudspeaker device, electronic equipment and loudspeaker sound output control method | |
| EP2043381A2 (en) | A method and a system to adjust the acoustical performance of a loudspeaker | |
| US8879768B2 (en) | Earpiece having adjustable front vent | |
| EP2899994B1 (en) | An electrical system for a speaker and its control | |
| US20080266080A1 (en) | Wireless communication system | |
| US20130343743A1 (en) | Panorama photography ptz for mobile communication devices | |
| US20070003097A1 (en) | Angularly adjustable speaker system | |
| CN206237474U (en) | A kind of mobile terminal support | |
| US11930336B2 (en) | Audio system | |
| CN208442499U (en) | Multipurpose camera device | |
| US7991175B2 (en) | Method and a system to adjust the acoustical performance of a loudspeaker | |
| CN109862459B (en) | TWS earphone device | |
| CN109327763B (en) | Sound equipment, playing system and playing system control method | |
| JP6040357B2 (en) | Amplifier unit and portable electronic device including the same | |
| CN114697808A (en) | Sound orientation control method and sound orientation control device | |
| JP3518016B2 (en) | Video camera equipment | |
| WO2023017318A1 (en) | Video communications apparatus and method | |
| GB2479186A (en) | Rotating docking station for use with portable media devices | |
| CN211830909U (en) | Housing mounting structure and image pickup apparatus | |
| CN217283080U (en) | Image pickup apparatus | |
| JP2000244845A (en) | Television receiver | |
| CN212064351U (en) | Microphone (CN) | |
| CN221127405U (en) | Image pickup apparatus | |
| CN203813874U (en) | Interview system |
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 |