CN108650569B - Microphone without pulling - Google Patents
Microphone without pulling Download PDFInfo
- Publication number
- CN108650569B CN108650569B CN201810423139.5A CN201810423139A CN108650569B CN 108650569 B CN108650569 B CN 108650569B CN 201810423139 A CN201810423139 A CN 201810423139A CN 108650569 B CN108650569 B CN 108650569B
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- China
- Prior art keywords
- light intensity
- microphone
- main controller
- photoelectric converter
- sound
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrophonic Musical Instruments (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
A microphone without pulling belongs to the field of vocal music and music teaching; the microphone comprises an acousto-optic modulator (1), a light intensity attenuation system (2), a photoelectric converter (3), an acoustic sensor (4) and a main controller (5); the acousto-optic modulator (1) and the photoelectric converter (3) are arranged on the same straight line, and the light intensity attenuation system (2) is arranged between the acousto-optic modulator (1) and the photoelectric converter (3); the output end of the sound sensor (4) is connected with the input end of the main controller (5), and the output end of the controller (5) is connected with the light intensity attenuation system (2); the microphone provided by the invention judges the frequency and the holding time of sound collected by the sound sensor (4) according to the main controller (5), adjusts the attenuation proportion of the light intensity attenuation system (2), further changes the intensity of the output signal of the photoelectric converter (3), realizes the microphone pulling effect, and effectively improves the artistic effect of singing.
Description
Technical Field
A microphone without pulling belongs to the field of vocal music and music teaching.
Background
Singing is a very favorite entertainment item for many people. Singing, however, has many professions, including the use of microphones, which are not mastered by laypersons.
For example, in the wheat pulling skill, when a certain long tone is sung, the microphone is pulled to be gradually far away from the mouth, and a special music effect is obtained. Time, distance and microphone moving speed are very important skills, and a nonprofessional singer is difficult to master the microphone pulling skill. This may restrict the artistic effect of singing.
Disclosure of Invention
In order to solve the problem that a nonprofessional singer is difficult to master the microphone pulling skill to influence the singing effect, the invention designs the microphone without pulling the microphone, the microphone pulling effect can be realized without pulling the microphone, the microphone pulling effects with the same time, distance and moving speed are almost the same, and the artistic effect of singing is effectively improved.
The purpose of the invention is realized as follows:
a microphone without pulling comprises an acousto-optic modulator, a light intensity attenuation system, a photoelectric converter, a sound sensor and a main controller;
the acousto-optic modulator and the photoelectric converter are arranged on the same straight line, and the light intensity attenuation system is arranged between the acousto-optic modulator and the photoelectric converter;
the output end of the sound sensor is connected with the input end of the main controller, and the output end of the controller is connected with the light intensity attenuation system.
The light intensity attenuation system of the pull-free microphone comprises a rotating shaft and a plurality of attenuation pieces distributed on the rotating shaft, wherein the attenuation pieces are different in attenuation proportion; the main controller controls the rotation of the rotating shaft.
The pull-free microphone comprises a vacuum cavity, wherein the light intensity attenuation system, the photoelectric converter and the main controller are arranged in the vacuum cavity; the acousto-optic modulator and acoustic sensor are disposed at the boundary of the vacuum chamber.
The calibration method of the microphone without pulling, the main controller and the rotating shaft is as follows:
step a, establishing an empirical relation of sound intensity Q, frequency f and holding time t; wherein, the sound intensity Q is a dependent variable, and the frequency f and the holding time t are independent variables;
b, calibrating a functional relation of the sound intensity Q and the light intensity I;
step c, calibrating a functional relation between the light intensity I and the rotating shaft rotation angle α;
and d, establishing a functional relation of the frequency f, the maintaining time t and the rotation angle α, wherein the rotation angle α is a dependent variable, and the frequency f and the maintaining time t are independent variables.
The empirical relationship stated in step a is obtained by maintaining the average value of time t at a certain sound intensity Q and frequency f for a plurality of persons.
The implementation method of the wheat without wheat pulling comprises the following steps:
the sound-light modulator converts the sound signal into light signal, and the light signal is attenuated by the light intensity attenuation system and converted into electric signal by the photoelectric converter, meanwhile, the sound sensor collects the sound frequency information and sends the information to the main controller for processing, and the main controller adjusts the angle α of the rotating shaft according to the intensity Q of the sound with the frequency f and the maintaining time t.
Has the advantages that:
firstly, the acousto-optic modulator and the photoelectric converter are arranged on the same straight line, and the light intensity attenuation system is arranged between the acousto-optic modulator and the photoelectric converter; therefore, the output signal of the photoelectric converter can be changed by adjusting the attenuation proportion of the light intensity attenuation system while the sound output of the acousto-optic modulator is not changed, and the wheat pulling effect is realized;
the output end of the sound sensor is connected with the input end of the main controller, and the output end of the controller is connected with the light intensity attenuation system; by the design, the maintenance time of sound with a certain frequency can be detected by the sound sensor, and the attenuation proportion required by the wheat is further obtained;
above two technical scheme combine together, judge the frequency and the holding time that sound sensor gathered sound according to main control unit, adjust the decay proportion of light intensity decay system, and then change photoelectric converter output signal's intensity, realize drawing the wheat effect, effectively improve the artistic effect of singing.
Drawings
Fig. 1 is a schematic structural diagram of a microphone according to the present invention.
Fig. 2 is a schematic diagram of the structure of the light intensity attenuating system.
In the figure: 1 acousto-optic modulator, 2 light intensity attenuation system, 21 rotation axis, 22 attenuation piece, 3 photoelectric converter, 4 sound sensor, 5 main controller.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Detailed description of the preferred embodiment
Fig. 1 shows a schematic structural diagram of the pull-free microphone according to this embodiment. The microphone comprises an acoustic-optical modulator 1, a light intensity attenuation system 2, a photoelectric converter 3, a sound sensor 4 and a main controller 5;
the acousto-optic modulator 1 and the photoelectric converter 3 are arranged on the same straight line, and the light intensity attenuation system 2 is arranged between the acousto-optic modulator 1 and the photoelectric converter 3;
the output end of the sound sensor 4 is connected with the input end of the main controller 5, and the output end of the controller 5 is connected with the light intensity attenuation system 2.
Detailed description of the invention
The microphone of the present embodiment further defines, on the basis of the first specific embodiment, that the light intensity attenuation system 2 includes a rotating shaft 21 and a plurality of attenuation pieces 22 distributed on the rotating shaft 21 and having different attenuation ratios, as shown in fig. 2; the main controller 5 controls the rotation of the rotation shaft 21.
It should be noted that the attenuation sheet 22 in fig. 2 is a discrete gradual attenuation, and the more discrete values, the more phase difference, and the finer the change. Of course a continuously gradual decay may also be used.
Detailed description of the preferred embodiment
The microphone of this embodiment further includes, on the basis of the first embodiment or the second embodiment, a vacuum chamber, wherein the light intensity attenuation system 2, the photoelectric converter 3, and the main controller 5 are disposed in the vacuum chamber; the acousto-optic modulator 1 and the acoustic sensor 4 are arranged at the boundary of the vacuum chamber.
The structural design can avoid the interference of external sound, so that the tone quality is fuller and cleaner.
Detailed description of the invention
The microphone of this embodiment further defines the calibration method between the main controller 5 and the rotating shaft 21 based on the second embodiment as follows:
step a, establishing an empirical relation of sound intensity Q, frequency f and holding time t; wherein, the sound intensity Q is a dependent variable, and the frequency f and the holding time t are independent variables;
b, calibrating a functional relation of the sound intensity Q and the light intensity I;
step c, calibrating a functional relation between the light intensity I and the rotation angle α of the rotating shaft 21;
and d, establishing a functional relation of the frequency f, the maintaining time t and the rotation angle α, wherein the rotation angle α is a dependent variable, and the frequency f and the maintaining time t are independent variables.
Detailed description of the preferred embodiment
In the microphone according to the second embodiment, the empirical relationship in step a is further defined, and the average value of the time t at a certain sound intensity Q and frequency f obtained by a plurality of persons is maintained.
The design is beneficial to avoiding the phenomenon that the special unsatisfactory effect of the wheat pulling is caused by the subjective factor of a certain person.
Detailed description of the preferred embodiment
On the basis of the fourth specific embodiment or the fifth specific embodiment, the implementation method of the pull-free microphone of this embodiment is further defined as follows:
the acousto-optic modulator 1 converts the sound signal into an optical signal, and the optical signal is attenuated by the light intensity attenuation system 2 and then converted into an electric signal by the photoelectric converter 3, meanwhile, the sound sensor 4 collects the sound frequency information and sends the information to the main controller 5 for processing, and the main controller 5 adjusts the angle α of the rotating shaft 21 according to the intensity Q of the sound with the frequency f and the maintaining time t.
Claims (1)
1. A microphone without pulling comprises an acousto-optic modulator (1), a light intensity attenuation system (2), a photoelectric converter (3), a sound sensor (4) and a main controller (5);
it is characterized in that the preparation method is characterized in that,
the acousto-optic modulator (1) and the photoelectric converter (3) are arranged on the same straight line, and the light intensity attenuation system (2) is arranged between the acousto-optic modulator (1) and the photoelectric converter (3);
the sound sensor (4) is used for collecting the frequency f of sound, the output end of the sound sensor (4) is connected with the input end of the main controller (5), and the output end of the controller (5) is connected with the light intensity attenuation system (2);
the light intensity attenuation system (2) comprises a rotating shaft (21) and a plurality of attenuation pieces (22) which are distributed on the rotating shaft (21) and have different attenuation proportions, wherein a main controller (5) controls the angle of the rotating shaft (21), and the main controller (5) adjusts the angle α of the rotating shaft (21) according to sound frequency f, sound intensity Q and maintenance time t;
comprises a vacuum cavity, wherein a light intensity attenuation system (2), a photoelectric converter (3) and a main controller (5) are arranged in the vacuum cavity; the acousto-optic modulator (1) and the acoustic sensor (4) are arranged at the boundary of the vacuum cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810423139.5A CN108650569B (en) | 2016-04-07 | 2016-04-07 | Microphone without pulling |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810423139.5A CN108650569B (en) | 2016-04-07 | 2016-04-07 | Microphone without pulling |
| CN201610209263.2A CN105898634B (en) | 2016-04-07 | 2016-04-07 | One kind is exempted to draw wheat microphone |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610209263.2A Division CN105898634B (en) | 2016-04-07 | 2016-04-07 | One kind is exempted to draw wheat microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108650569A CN108650569A (en) | 2018-10-12 |
| CN108650569B true CN108650569B (en) | 2020-07-21 |
Family
ID=57013369
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810423161.XA Expired - Fee Related CN108650570B (en) | 2016-04-07 | 2016-04-07 | Microphone-pulling-free method for microphone-pulling-free microphone |
| CN201810423139.5A Active CN108650569B (en) | 2016-04-07 | 2016-04-07 | Microphone without pulling |
| CN201610209263.2A Active CN105898634B (en) | 2016-04-07 | 2016-04-07 | One kind is exempted to draw wheat microphone |
| CN201810423140.8A Active CN108513220B (en) | 2016-04-07 | 2016-04-07 | Calibration method between main controller and rotating shaft for pull-free microphone |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810423161.XA Expired - Fee Related CN108650570B (en) | 2016-04-07 | 2016-04-07 | Microphone-pulling-free method for microphone-pulling-free microphone |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610209263.2A Active CN105898634B (en) | 2016-04-07 | 2016-04-07 | One kind is exempted to draw wheat microphone |
| CN201810423140.8A Active CN108513220B (en) | 2016-04-07 | 2016-04-07 | Calibration method between main controller and rotating shaft for pull-free microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN108650570B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403841A (en) * | 2002-09-05 | 2003-03-19 | 上海交通大学 | Small mechanical variable laser strength attenuator |
| CN1797590A (en) * | 2004-12-30 | 2006-07-05 | 上海乐金广电电子有限公司 | Device and method for adjusting synaeresis level in Kara-Ok program |
| CN1870469B (en) * | 2006-05-29 | 2010-06-09 | 浙江工业大学 | Optical split insertion duplexer based on acousto-optic tunable wave filter |
| JP4818415B2 (en) * | 2009-09-17 | 2011-11-16 | シャープ株式会社 | Electronic cartoon production apparatus and electronic cartoon production method |
| CN101729967B (en) * | 2009-12-17 | 2013-01-02 | 天津大学 | Acousto-optic conversion method and optical microphone based on multiple-mode interference |
| CN101783997A (en) * | 2010-02-10 | 2010-07-21 | 中国科学院半导体研究所 | Fiber laser microphone and speaker system |
| CN103605182A (en) * | 2013-12-02 | 2014-02-26 | 四川飞阳科技有限公司 | Reflection-type optical attenuator and method for attenuating power of optical waves |
-
2016
- 2016-04-07 CN CN201810423161.XA patent/CN108650570B/en not_active Expired - Fee Related
- 2016-04-07 CN CN201810423139.5A patent/CN108650569B/en active Active
- 2016-04-07 CN CN201610209263.2A patent/CN105898634B/en active Active
- 2016-04-07 CN CN201810423140.8A patent/CN108513220B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108513220A (en) | 2018-09-07 |
| CN105898634A (en) | 2016-08-24 |
| CN105898634B (en) | 2018-11-09 |
| CN108650570B (en) | 2020-09-08 |
| CN108650569A (en) | 2018-10-12 |
| CN108513220B (en) | 2020-04-21 |
| CN108650570A (en) | 2018-10-12 |
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Effective date of registration: 20200622 Address after: No.3, west side of Xinsheng Road, Pingzhou Industrial Zone, Guicheng Street, Nanhai District, Foshan City, Guangdong Province Applicant after: Foshan Xindian Technology Co.,Ltd. Applicant after: Pang Jiaxu Address before: 756000 No. 118 West Street of Yuanzhou District Government, Guyuan City, Ningxia Hui Autonomous Region Applicant before: Li Yonghong |
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