CN102223594B - Microphone control device and method - Google Patents
Microphone control device and method Download PDFInfo
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- CN102223594B CN102223594B CN201010150152.1A CN201010150152A CN102223594B CN 102223594 B CN102223594 B CN 102223594B CN 201010150152 A CN201010150152 A CN 201010150152A CN 102223594 B CN102223594 B CN 102223594B
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Abstract
The invention discloses a microphone control device and method. The microphone control device comprises an image inputting unit, a brake unit and a microprocessor. The microprocessor comprises an image detecting module and an adjusting module; the image detecting module is used for receiving scene images shot by the image inputting unit, detecting and distinguishing the scene images by adopting a face detection method, judging whether the face image of the user is included in the scene image, and detecting the mouth position of the user according to the dimensional proportion of the face image and the scene image; and the adjusting module is used for computing the height, distance and angle of the microphone to be adjusted according to the mouth position of the user and the preset position of the microphone, and generating a control signal according to the computed height, distance and angle so as to drive the brake unit to adjust the microphone to the mouth position of the user. By use of the invention, the microphone can extract the clearest voice of the user without being manually adjusted by the user so that the microphone can achieve the best voice reception effect in real time.
Description
Technical field
The present invention relates to a kind of microphone and control method thereof, particularly about a kind of device and method of controlling the best radio reception of microphone position.
Background technology
Microphone is a kind of energy converter that converts tones into electronic signal, its basic principle is for the sound vibrating diaphragm when microphone is after the vibrations of sound, sound vibrations is transformed into electronic signal, and electronic signal is amplified through expander, then delivers to loudspeaker and just become original sound.The microphone of this kind of signal conversion regime is common dynamic microphones (claiming again dynamic type microphone) and Electret Condencer Microphone.Wherein, Electret Condencer Microphone is more expensive, but tonequality is better also thinner, and shortcoming is not for high pressure resistant.
Microphone is except the mode difference of switching signal, and the mode that can also receive sound by it is distinguished.If a microphone can receive the sound that all directions transmit, just be without directional type microphone; If microphone can only receive the sound of certain direction, it is directional type microphone.Directional type microphone is even more important before the lights because it receives only the sound in the place ahead, from the side or the sound that transmits of rear all can be ostracised, so can avoid a lot of unnecessary noises.Yet user is in use with regard to the direction of necessary careful microphone, if the direction of microphone is not right, the sound of receiving is just not right.
According to aforementioned, the radio reception mode that different types of microphone is had nothing in common with each other, but because traditional microphone is not in conjunction with image detecting technology, face and mouth position that cannot Auto-Sensing user, and being adjusted to voluntarily best radio reception position and angle by user's height, user can only start to adjust height and the angle position of microphone before use voluntarily.Yet, always in most activity flow process, have multidigit speech person or performing artist, even if please professional sounds specialist before activity set in advance microphone position, but often because every speech person or performing artist's height is not quite similar and causes radio reception effect different.If every speech person all readjusts microphone height and angle position before speech, except meeting affects speech mood and performance quality, also may cause the activity time to delay and be difficult for management and control, microphone radio reception and the amplifying effect of user after adjusting voluntarily can not reach optimum efficiency in addition.
Summary of the invention
In view of above content, be necessary to provide a kind of microphone control device and method, can automatically adjust microphone height, distance with angle to best radio reception position, and with manual mode, adjust microphone position without user.
Described microphone control device comprises: image input unit, near the scene image real-time shooting microphone; Brake unit, for regulating the position of microphone; And microprocessor, this microprocessor comprises image detecting module and adjustment module.Described image detecting module is for receiving the captured scene image of image input unit, adopt face's method for detecting to carry out image detecting and identification for scene image, judge the people's face image that whether comprises user in scene image, and according to the dimension scale of people's face image and scene image, detect user's mouth position.Described adjustment module is for calculating height, distance and the angle of the required adjustment of microphone according to the predeterminated position of user's mouth position and microphone, according to the height calculating, distance, produce corresponding control signal with angle, and drive described brake unit the position of microphone to be adjusted to user's mouth position according to this control signal.
Described microphone control method comprises the steps: that controller judgement user enables automatic mode or self-defined pattern; When user enables automatic mode, execution step (a1) to step (a5): (a1) pass through image input unit near scene image microphone; (a2) scene image that adopts face's method for detecting to absorb for image input unit carries out image detecting and identification; (a3), while comprising people's face image of user in scene image, according to the dimension scale of people's face image and scene image, detect user's mouth position; (a4) according to the desired location of user's mouth position and microphone, calculate height, distance and the angle of the required adjustment of microphone; (a5) according to the height calculating, distance, produce corresponding control signal with angle, and drive brake unit the position of microphone to be adjusted to user's mouth position according to this control signal.When user enables self-defined pattern, execution step (b1) to step (b4): (b1) user Ying Jiang face moves to wish desired location; (b2) by image input unit according near want to take desired location user people's face image; (b3) adopt face's method for detecting to analyze the dimension scale of people's face image and scene image and people's face image size data of user; (b4) people's face image size data of the dimension scale of people's face image and scene image and user are stored in memory cell, and execution step (a1) is to step (a5).
Compared to prior art, microphone control device of the present invention and method have adopted face's detection techniques, the height, distance that can automatically adjust microphone according to user's face and mouth position with angle to best radio reception position.Allow microphone can capture user's sound the most clearly, and user is without adjusting microphone position with manual mode, more accurately control activity flow process and time, also can allow microphone reach in real time best radio reception effect.
Accompanying drawing explanation
Fig. 1 is the Organization Chart of microphone control device preferred embodiment of the present invention.
Fig. 2 is that microphone control device of the present invention is applied to the schematic diagram on microphone holder.
Fig. 3 is the flow chart of microphone control method of the present invention preferred embodiment.
Fig. 4 is the schematic diagram that user uses microphone under automatic mode.
Fig. 5 is that user uses the schematic diagram of microphone under self-defined pattern.
Main element symbol description
Image input unit 1
Microprocessor 2
Set button 42
Memory cell 5
Microphone 11
Embodiment
As shown in Figure 1, be the Organization Chart of microphone control device 10 preferred embodiments of the present invention.This microphone control device 10 is for automatically adjusting height, distance and the angle of microphone 11 according to user's face and mouth position.Shown in figure 2, microphone 11 is installed on microphone control device 10, and this microphone control device 10 is installed on support 12.In the present embodiment, described microphone control device 10 at least comprises image input unit 1, microprocessor 2, brake unit 3, controller 4 and memory cell 5.
Described image input unit 1 is connected with microprocessor 2, and it is for taking in real time near scene image microphone 11, image A as shown in Figure 4 of example and the image B shown in Fig. 5, and this scene image is sent to microprocessor 2 carries out image detecting.In the present embodiment, described image input unit 1 is a kind of night-vision camera, infrared camera that possesses shooting at night function, or is any image input device of digitized video of can obtaining to obtain.
Described microprocessor 2 is connected with brake unit 3, the scene image that it absorbs for discriminance analysis image input unit 1, from scene image, detect user's face and mouth position, and produce control signal driving brake unit 3 by the height of microphone 11, distance and the mouth position of angle adjustment to user.In the present embodiment, described microprocessor 2 is a kind of programmable chip, is inside solidified with microphone control command module, and it comprises image detecting module 21 and adjustment module 22.
Described controller 4 is connected with microprocessor 2, and it comprises automatic button 41 and sets button 42, for judging that user enables (Auto) pattern or self-defined (Reset) pattern automatically.In the present embodiment, when user presses automatic button 41 (shown in figure 4), controller 4 is carried out automatic mode; When user presses setting button 42 (shown in figure 5), controller 4 is carried out self-defined pattern.Described automatic mode is to utilize the Default Value value being stored in memory cell 5 automatically to adjust the position of microphone 11, and this Default Value value comprises the set positions data of user's height that the best radio reception quality of microphone 11 is corresponding.Described self-defined pattern is that user can set the position of gram wind 11 voluntarily according to personal like, adjusts the position of microphone 11 according to this desired location.When user wants to set voluntarily the position of microphone 11, can first press and set button 42，Zai Jiang face and move to behind the appropriate location that wish sets and decontrol and set button 42, controller 4 enters self-defined pattern.
Described memory cell 5 is connected with microprocessor 2, it is for storing the Default Value value of adjusting microphone 11 positions, the set positions data of user's height corresponding to the best radio reception quality of microphone 11 for example, and people's face image size data of storage user when using self-defined pattern, example length (W) as shown in Figure 5 and width (H).
Described image detecting module 21 is for receiving near the scene image of the captured microphone of image input unit 1 11 positions, adopt face's method for detecting to carry out image detecting and identification for absorbed scene image, judge the people's face image that whether comprises user in scene image, and the mouth position that detects user according to the dimension scale of people's face image and scene image.In the present embodiment, when image detecting module 21 picks out in scene image, comprise after people's face image, then using user's face location region below roughly 1/3rd places as user's mouth position.
Described adjustment module 22 is for calculating height, distance and the angle of microphone 11 required adjustment according to the predeterminated position of user's mouth position and microphone 11, according to the height calculating, distance, produce corresponding control signal with angle, and drive brake unit 3 position of microphone 11 to be adjusted to user's mouth position according to this control signal, thereby make microphone 11 can reach best radio reception quality and radio reception effect.
As shown in Figure 3, be the flow chart of microphone control method of the present invention preferred embodiment.In the present embodiment, this microphone control method can be carried out automatic mode and two kinds of patterns of self-defined pattern, in conjunction with the best radio reception characteristic of face's detection techniques and microphone 11, by microphone 11 being adjusted to automatically to user's mouth position according to user's face, mouth position.
Step S300, manufacturer is in advance in the Default Value value of the interior setting microphone 11 of memory cell 5, for example the set positions data of user's height corresponding to the best radio reception quality of microphone 11.Step S301, controller 4 judgement users enable (Auto) pattern or self-defined (Reset) pattern automatically.In the present embodiment, when user presses the automatic button 41 (shown in figure 4) of controller 4, controller 4 is carried out automatic mode, and flow process turns to step S302; When user presses the setting button 42 (shown in figure 5) of controller 4, controller 4 is carried out self-defined pattern, and flow process turns to step S309.
Step S302, when controller 4 is carried out automatic mode, image detecting module 21 takes to obtain scene image by image input unit 1 near the scene of position microphone 11.Step S303, the scene image that image detecting module 21 adopts face's method for detecting to absorb for image input unit 1 carries out image detecting and identification.Step S304, image detecting module 21 judges the people's face image that whether comprises user in scene image.If do not comprise people's face image of user in scene image, flow process is returned to step S302 and is continued near the scene image of picked-up microphone 11.If comprise people's face image of user in scene image, step S305, image detecting module 21 detects user's mouth position according to the dimension scale of people's face image and scene image.In the present embodiment, when image detecting module 21 picks out in scene image, comprise after people's face image, then using user's face location region below roughly 1/3rd places as user's mouth position.
Step S306, adjustment module 22 is calculated height, distance and the angle of microphone 11 required adjustment according to the desired location of user's mouth position and microphone 11.Step S307, adjustment module 22 produces corresponding control signal according to the height calculating, distance with angle, and drive brake unit 3 position of microphone 11 to be adjusted to user's face and mouth position according to this control signal, thereby make microphone 11 can reach best radio reception quality and radio reception effect.Step S308, controller 4 judges whether microphone 11 is closed.If microphone 11 is closed, flow process finishes; If microphone 11 is not closed, flow process turns to step S302 to continue near the scene image of picked-up microphone 11.Therefore, user is in performance process, if health has any action of rocking or departing from a little microphone to produce, also can be dynamically according to user's face and mouth position carry out the height of microphone 11, apart from the real-time correction adjustment with angle.
Step S309, when user presses the setting button 42 (shown in figure 5) of controller 4, controller 4 is carried out self-defined pattern.Step S310, now user Ying Jiang face moves to and wants to decontrol setting button 42 after desired location.Step S311, image detecting module 21 is taken people's face image of user according to wish desired location by image input unit 1.Step S312, image detecting module 21 adopts face's method for detecting to analyze the dimension scale of people's face image and scene image and people's face image size data of user, example length (W) as shown in Figure 5 and width (H).Step S313, image detecting module 21 is stored in people's face image size data of the dimension scale of people's face image and scene image and user in memory cell 5, and then the above-mentioned identical step S302 of flow performing is to step S308.
In the present embodiment, user is in using microphone 11 processes, and image input unit 1 can continue to take the scene image that contains user face.Image detecting module 21 detects captured scene image user's face location and people's face image size with face's detection techniques.Adjustment module 22 is compared with beautiful woman's face image size and the position data previously set, according to data, microphone 11 is adjusted to appropriate location.When user's wish is removed self-defined pattern recovery Wei Yuan factory set point, only need to press automatic button 41, controller 4 is just removed previous self-defined pattern, take former factory setting value as adjustment standard.
Claims (10)
1. a microphone control device, is characterized in that, this microphone control device comprises:
Image input unit, near the scene image real-time shooting microphone;
Brake unit, for regulating the position of microphone;
Controller, this controller comprises automatic button and sets button, for judging that user enables automatic mode or self-defined pattern;
Microprocessor, this microprocessor comprises:
Image detecting module, for receiving the captured scene image of image input unit, adopt face's method for detecting to carry out image detecting and identification for scene image, judge the people's face image that whether comprises user in scene image, and the mouth position that detects user according to the dimension scale of people's face image and scene image;
Adjustment module, for calculate height, distance and the angle of the required adjustment of microphone according to the predeterminated position of user's mouth position and microphone, according to the height calculating, distance, produce corresponding control signal with angle, and drive described brake unit the position of microphone to be adjusted to user's mouth position according to this control signal.
2. microphone control device as claimed in claim 1, is characterized in that, when user presses automatic button, controller is carried out automatic mode.
3. microphone control device as claimed in claim 1, is characterized in that, when user presses setting button, controller is carried out self-defined pattern.
4. microphone control device as claimed in claim 1, is characterized in that, this device also comprises memory cell, for storing the Default Value value of the best radio reception of microphone position, and people's face image size data of storage user when using self-defined pattern.
5. microphone control device as claimed in claim 1, is characterized in that, described image detecting module detects 1/3rd places, below, user's face location region as user's mouth position.
6. a microphone control method, is characterized in that, the method comprising the steps of:
Utilize controller judgement user to enable automatic mode or self-defined pattern, this controller comprises automatic button and sets button;
When user enables automatic mode, execution step (a1) to step (a5):
(a1) pass through image input unit near scene image microphone;
(a2) scene image that adopts face's method for detecting to absorb for image input unit carries out image detecting and identification;
(a3), while comprising people's face image of user in scene image, according to the dimension scale of people's face image and scene image, detect user's mouth position;
(a4) according to the desired location of user's mouth position and microphone, calculate height, distance and the angle of the required adjustment of microphone;
(a5) according to the height calculating, distance, produce corresponding control signal with angle, and drive brake unit the position of microphone to be adjusted to user's mouth position according to this control signal;
When user enables self-defined pattern, execution step (b1) to step (b4):
(b1) user Ying Jiang face moves to wish desired location;
(b2) by image input unit according near take user desired location people's face image;
(b3) adopt face's method for detecting to analyze the dimension scale of people's face image and scene image and people's face image size data of user;
(b4) people's face image size data of the dimension scale of people's face image and scene image and user are stored in memory cell, and execution step (a1) is to step (a5).
7. microphone control method as claimed in claim 6, is characterized in that, when user presses automatic button, controller is carried out automatic mode.
8. microphone control method as claimed in claim 6, is characterized in that, when user presses setting button, controller is carried out self-defined pattern.
9. microphone control method as claimed in claim 6, is characterized in that, the method also comprises step:
In memory cell, set in advance the set positions data of user's height corresponding to the best radio reception quality of microphone.
10. microphone control method as claimed in claim 6, is characterized in that, described user's mouth position is positioned at 1/3rd places, below, user's face location region.
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| CN201010150152.1A CN102223594B (en) | 2010-04-19 | 2010-04-19 | Microphone control device and method |
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| CN201010150152.1A CN102223594B (en) | 2010-04-19 | 2010-04-19 | Microphone control device and method |
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| CN102223594B true CN102223594B (en) | 2014-02-19 |
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| US8862104B2 (en) * | 2012-06-29 | 2014-10-14 | Intel Corporation | System and method for gesture-based management |
| CN103716446B (en) * | 2012-10-09 | 2016-12-21 | 中兴通讯股份有限公司 | A kind of method and device improving mobile terminal call tonequality |
| WO2014079003A1 (en) * | 2012-11-21 | 2014-05-30 | 齐晓燕 | Automatically adjusting microphone |
| CN104010251B (en) * | 2013-02-27 | 2018-06-19 | 晨星半导体股份有限公司 | Radio system and correlation technique |
| CN103414992B (en) * | 2013-07-24 | 2015-09-02 | 苏州佳世达电通有限公司 | A kind of message adjustment system |
| CN104703090B (en) * | 2013-12-05 | 2018-03-20 | 北京东方正龙数字技术有限公司 | It is a kind of that pick up facility and Automatic adjustment method are automatically adjusted based on recognition of face |
| TWI543635B (en) * | 2013-12-18 | 2016-07-21 | jing-feng Liu | Speech Acquisition Method of Hearing Aid System and Hearing Aid System |
| WO2017124228A1 (en) * | 2016-01-18 | 2017-07-27 | 王晓光 | Image tracking method and system of video network |
| CN106998398A (en) * | 2017-03-28 | 2017-08-01 | 杭州三为电子技术有限公司 | Telephone operation machine voice input system |
| CN109696658B (en) | 2017-10-23 | 2021-08-24 | 京东方科技集团股份有限公司 | Acquisition device, sound acquisition method, sound source tracking system and sound source tracking method |
| CN107909669A (en) * | 2017-11-24 | 2018-04-13 | 李仕晨 | A kind of new recognition of face punched-card machine |
| CN108447159B (en) * | 2018-03-28 | 2020-12-18 | 百度在线网络技术（北京）有限公司 | Face image acquisition method and device and entrance and exit management system |
| CN108650571B (en) * | 2018-05-25 | 2020-06-02 | 四川音创伟业科技有限公司 | Microphone support adjusting method and device, terminal and readable medium |
| CN109671190B (en) * | 2018-11-27 | 2021-04-13 | 杭州天翼智慧城市科技有限公司 | Multi-channel gate management method and system based on face recognition |
| CN110519676B (en) * | 2019-08-22 | 2021-04-09 | 云知声智能科技股份有限公司 | Decentralized distributed microphone pickup method |
| CN111601198B (en) * | 2020-04-24 | 2022-03-11 | 达闼机器人有限公司 | Method and device for tracking speaker by using microphone and computing equipment |
| CN111932619A (en) * | 2020-07-23 | 2020-11-13 | 安徽声讯信息技术有限公司 | Microphone tracking system and method combining image recognition and voice positioning |
| CN111984065A (en) * | 2020-08-20 | 2020-11-24 | 广州驰创科技有限公司 | Big data interactive teaching practical training platform |
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