CN205320228U - Vibrating diaphragm capacitor microphone - Google Patents
Vibrating diaphragm capacitor microphone Download PDFInfo
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- CN205320228U CN205320228U CN201520619157.2U CN201520619157U CN205320228U CN 205320228 U CN205320228 U CN 205320228U CN 201520619157 U CN201520619157 U CN 201520619157U CN 205320228 U CN205320228 U CN 205320228U
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- vibrating diaphragm
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Abstract
The utility model provides a vibrating diaphragm capacitor microphone, include the barrel the inside upper end of barrel is equipped with vibrating diaphragm miaow core, vibrating diaphragm miaow core is located in with the audio frequency processing unit electric connection of barrel, still be equipped with the battery in the barrel, the battery is located through interior the voltage control circuit of barrel with audio frequency processing unit electric connection. Beneficial effect: vibrating diaphragm capacitor microphone incites somebody to action through the voltage control circuit from electrified pond battery output's low -voltage rises to appropriate voltage and gives the inconvenience that ordinary vibrating diaphragm capacitor microphone must external mirage power when using brings has been avoided in vibrating diaphragm capacitor microphone power supply.
Description
Technical field
This utility model relates to transaudient field, particularly relates to a kind of vibrating diaphragm capacitor microphone.
Background technology
In electroacoustic field, vibrating diaphragm capacitor microphone has highly sensitive, the feature that directivity is high, and therefore, it is commonly used in the music of various specialty, in video display recording. Generally effective diameter capacitor microphone more than 3/4 inch is called good membrane capacitance microphone, the capacitor microphone of 5/8 to 3/4 inch is called middle vibrating diaphragm capacitor microphone, the capacitor microphone of less than 5/8 inch is called little vibrating diaphragm capacitor microphone, vibrating diaphragm is more big, sensitivity of microphone is more high, sends sound more careful. The sound principle of picking up of vibrating diaphragm capacitor microphone is to utilize a very thin gold-plated film, a pole as electric capacity, several millimeters of minimum capacity of being separated by with it microphone has another one fixed electrode, so form the capacitor of a few P farads, membrane electrode is followed acoustic vibration and is caused the volume change of electric capacity, form the signal of telecommunication, owing to this electric capacity only has a few P farad (1 farad=1000000000P farad), its internal resistance is high, reaches the rank (1G ohm=1000000000 ohm) of G ohm. So the impedance transformation of this G ohm is become the impedance of 600 general ohms by needs " pre-amplification circuit ", " pre-amplification circuit " is generally integrated in the inside of capacitor microphone, it is necessary to " 48V phantom power " powers to circuit. But phantom power volume on the market is relatively larger, carries inconvenience.
Utility model content
The purpose of this utility model is in that to overcome the deficiencies in the prior art, it is provided that a kind of from charged pool, the vibrating diaphragm capacitor microphone used to microphone after being boosted by the voltage that battery provides. This utility model is achieved in that a kind of vibrating diaphragm capacitor microphone, it is provided with vibrating diaphragm miaow core including cylinder, described inner barrel upper end, described vibrating diaphragm miaow core is electrically connected with the interior audio treatment unit being located at described cylinder, being additionally provided with battery in described cylinder, described battery is located at the voltage regulator circuit of described cylinder and is electrically connected with described audio treatment unit in passing through.
Further, described battery is rechargeable battery, and described cylinder body outer wall is provided with USB charging inlet and is electrically connected with described battery.
Further, described vibrating diaphragm capacitor microphone is located at electric-quantity monitoring unit that described cylinder and described battery be electrically connected and is located at the electric quantity display device that described cylinder body outer wall is electrically connected with described electric-quantity monitoring unit in also including, described electric quantity display device is word or figure shows the electricity that described battery is remaining.
Further, described cylinder body outer wall is additionally provided with the first audio interface and described audio treatment unit is electrically connected, mutual for carrying out voice data for outside mobile phone, panel computer or personal computer access and described audio treatment unit.
Further, described cylinder body outer wall is additionally provided with the second audio interface and is electrically connected with described audio treatment unit, monitors for accessing, for outside audiomonitor, the audio signal that described audio treatment unit is exported.
Further, described first audio interface and/or described second audio interface are TRRS interface, include the first ring, the second ring, the 3rd ring and Fourth Ring from the inside to surface successively, wherein, described first ring is L channel end and the L channel outfan of described audio treatment unit is electrically connected, and described second ring is R channel end and the R channel outfan of described audio treatment unit is electrically connected; Described equipment body is additionally provided with switching switch, described 3rd ring, described Fourth Ring by switch switch and the audio input end of described audio treatment unit, hold electric connection, described in while the audio input end electric connection of the 3rd ring described in described switching on-off control and described audio treatment unit, Fourth Ring is electrically connected with the ground end of described audio treatment unit, or described in while the ground end electric connection of described 3rd ring and described audio treatment unit, Fourth Ring and the audio input end with described audio treatment unit are electrically connected.
Further, described vibrating diaphragm capacitor microphone also includes the analogue audio frequency being electrically connected with described audio treatment unit and is connected unit, it is wireless transceiver or entity interface that described analogue audio frequency connects unit, wireless transceiver is Wifi transceiver module, bluetooth transceiver module, Zigbee transceiver module or 3G transceiver module, and entity interface is XLR interface, RCA interface or TRS interface.
Further, described audio treatment unit also includes AD conversion unit, conversion unit of protocol, and described cylinder is provided with digital audio interface; Wherein,
Described AD conversion unit is electrically connected with vibrating diaphragm miaow core, for the simulated audio signal of described vibrating diaphragm miaow core collection is converted to the first digital audio and video signals;
Described conversion unit of protocol is electrically connected with described AD conversion unit, and for described first digital audio and video signals is converted to the second digital audio and video signals, described second digital audio and video signals meets the digital audio interface agreement adaptive with described digital audio interface;
Described digital audio interface is electrically connected with described conversion unit of protocol, for the digital input interface by described second digital audio and video signals output to outer audio equipment.
Further, described digital audio interface includes at least one in AES audio interface, coaxial audio interface and optical fiber audio interface.
Further, described digital audio interface is coaxial audio interface, and itself and described outer audio equipment are connected with each other by coaxial cable, arrange common mode choke at described coaxial audio interface place, in order to the radiation suppressing described coaxial cable to produce.
The beneficial effects of the utility model: described vibrating diaphragm capacitor microphone is from charged pool, by voltage regulator circuit, the low-voltage that described battery exports rises to suitable voltage to power to described vibrating diaphragm capacitor microphone, it is to avoid common vibrating diaphragm capacitor microphone in use must the inconvenience that brings of external phantom power.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical solution of the utility model, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing from these accompanying drawings.
Fig. 1 is the example structure figure of a kind of vibrating diaphragm capacitor microphone of this utility model.
Fig. 2 is the embodiment functional block diagram of a kind of vibrating diaphragm capacitor microphone of this utility model;
Fig. 3 is the functional block diagram that a kind of vibrating diaphragm capacitor microphone of this utility model has digital audio interface.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described. The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
With reference to Fig. 1, shown in Fig. 2, described vibrating diaphragm capacitor microphone, including cylinder 1, described cylinder 1 inner upper end is provided with vibrating diaphragm miaow core 2, the effect of vibrating diaphragm miaow core 2 is that acoustical signal is converted to the signal of telecommunication, described vibrating diaphragm miaow core 2 is electrically connected by wire rod and the interior audio treatment unit 3 being located at described cylinder 1, the signal of telecommunication that the effect of audio treatment unit 3 is after being changed by vibrating diaphragm miaow core 2 processes, it is provided with battery 4 in described cylinder 1, described battery 4 is located at the voltage regulator circuit 5 of described cylinder 1 and is electrically connected with described audio treatment unit 3 in passing through, the effect of voltage regulator circuit 5 is that the low voltage transition that battery 4 exports becomes the running voltage required for described vibrating diaphragm capacitor microphone, this running voltage is generally 48V.
The beneficial effect that the technical program obtains: described vibrating diaphragm capacitor microphone is from charged pool 4, by voltage regulator circuit 5, the low-voltage that described battery 4 exports rises to 48V to power to described vibrating diaphragm capacitor microphone, it is to avoid common vibrating diaphragm capacitor microphone in use must the inconvenience that brings of external 48V phantom power.
More preferably in embodiment, described battery 4 is rechargeable battery, and described cylinder 1 outer wall is provided with USB charging inlet 6 and is electrically connected with described battery 4. USB charging inlet 6 is that described battery 4 charges for being connected to civil power by circumscripted power line.
Described vibrating diaphragm capacitor microphone is located at the electric-quantity monitoring unit 7 of described cylinder 1 and the electric connection of described battery 4 and is located at the electric quantity display device 8 that described cylinder 1 outer wall is electrically connected with described electric-quantity monitoring unit 7 in also including, described electric-quantity monitoring unit 7 is for detecting the electricity of described battery 4, and described electric quantity display device 8 is word or figure shows the electricity that described battery 4 is remaining. User, it is observed that battery 4 electricity, charges during electricity deficiency in time.
More preferably in embodiment, described cylinder 1 outer wall is additionally provided with the first audio interface 9 and is electrically connected with described audio treatment unit 3, monitors for accessing the audio signal to the output of described audio treatment unit 3 for outside audiomonitor. Further, described first audio interface 9 is four-part form audio interface, current four-part form audio jack has standard two kinds different, one is national standard (OMTP), tip, the first medium ring, the second medium ring, end respectively L channel end, R channel end, mike end, ground terminal; Another kind is international standard (CTIA) tip, the first medium ring, the second medium ring, end respectively L channel end, R channel end, ground terminal, mike end. The plug of visible national standard and international standard is distinctive in that the second medium ring, end are just contrary. Correspondingly, four-part form audio interface is also classified into national standard (OMTP) and international standard (CTIA) interface. When only four-part form audio jack and four-part form audio interface are same standard, outside audiomonitor is received and could normally be worked on described vibrating diaphragm capacitor microphone. Therefore, when outside audiomonitor audio jack is different from the audio interface standard of vibrating diaphragm capacitor microphone, incompatible mutually, outside audiomonitor can not normally work. In order to solve this problem, present embodiments provide a kind of can in OMTP and the CTIA technical scheme freely switched: the first audio interface 9 includes the first ring a1, the second ring a2, the 3rd ring a3 and Fourth Ring a4 from the inside to surface successively, wherein, described first ring a1 is L channel end and the L channel outfan of described audio treatment unit 3 is electrically connected, and described second ring a2 is R channel end and the R channel outfan of described audio treatment unit 3 is electrically connected;Described cylinder 1 outer wall is additionally provided with the first switching switch 10, described 3rd ring a3, described Fourth Ring a4 is by the audio input end of the first switching switch 10 with described audio treatment unit 3, ground end is electrically connected, described in while the audio input end electric connection of the described first switching switch 10 described 3rd ring a3 of control and described audio treatment unit 3, Fourth Ring a4 is electrically connected with the ground end of described audio treatment unit 3, or Fourth Ring a4 described in while the ground end electric connection of described 3rd ring a3 and described audio treatment unit 3 is electrically connected with the audio input end with described audio treatment unit 3. the beneficial effect of the technical program: the outside audiomonitor of described vibrating diaphragm capacitor microphone compatible OMTP standard and CTIA standard plug.
More preferably in embodiment, described cylinder 1 outer wall is additionally provided with the second audio interface 11 and is electrically connected with described audio treatment unit 3, mutual for carrying out voice data for outside mobile phone, panel computer or personal computer access and described audio treatment unit 3. audio signal can be inputed to described audio treatment unit 3 and process by outside mobile phone, panel computer or personal computer, such as output accompaniment etc., or the audio signal processed through described audio treatment unit 3 is recorded, for instance the voice gather vibrating diaphragm miaow core 2 and the audio mixing of accompaniment carry out recording etc. further, described second audio interface 11 is four-part form audio interface, include the first ring b1, the second ring b2, the 3rd ring b3 and Fourth Ring b4 from the inside to surface successively, wherein, described first ring b1 is L channel end and the L channel outfan of described audio treatment unit 3 is electrically connected, and described second ring b2 is R channel end and the R channel outfan of described audio treatment unit 3 is electrically connected, described cylinder body outer wall is additionally provided with the second switching switch 12, described 3rd ring b3, described Fourth Ring b4 is by the audio input end of the second switching switch 12 with described audio treatment unit 3, ground end is electrically connected, described in while the audio input end electric connection of the described second switching switch 12 described 3rd ring b3 of control and described audio treatment unit 3, Fourth Ring b4 is electrically connected with the ground end of described audio treatment unit 3, or Fourth Ring b4 described in while the ground end electric connection of described 3rd ring b3 and described audio treatment unit 3 is electrically connected with the audio input end with described audio treatment unit 3. in like manner, the beneficial effect that the technical program obtains: described vibrating diaphragm capacitor microphone compatible OMTP standard and the outside mobile phone of CTIA standard plug, panel computer or personal computer.
Described vibrating diaphragm capacitor microphone also includes the analogue audio frequency being electrically connected with described audio treatment unit 3 and is connected unit 13, it is wireless transceiver that described analogue audio frequency connects unit 13, specifically, described analogue audio frequency connects unit 13 is Wifi transceiver module, bluetooth transceiver module, Zigbee transceiver module or 3G transceiver module. Or, described analogue audio frequency connects unit 13 and connects interface for entity, including XLR interface, RCA interface or TRS interface. Described vibrating diaphragm capacitor microphone can pass through analogue audio frequency and connect unit 13 with the electric connection of outer audio equipment such as sound card to carry out data interaction.
More preferably in embodiment, with reference to shown in Fig. 3, described vibrating diaphragm capacitor microphone also includes AD conversion unit 14, conversion unit of protocol 15 and digital audio interface 16. AD conversion unit 14 is for being converted to the first digital audio and video signals by the simulated audio signal of vibrating diaphragm miaow core collection. AD conversion unit 14 can be analog-digital converter (A/D converter), it is also possible to be the chip being integrated with analog-digital conversion function.In the present embodiment, simulated audio signal is converted to the first digital audio and video signals meeting I2S (Inter-ICSound) agreement by AD conversion unit 14. Conversion unit of protocol 15 for being converted to the second digital audio and video signals meeting the digital audio interface agreement with digital audio interface 16 adaptation by the first digital audio and video signals. Digital audio protocol can be AES protocol (also referred to as AES/EBU agreement), SPDIF agreement, ADAT agreement, I2S agreement, TDM agreement or MIDI agreement. Digital audio interface 16 and conversion unit of protocol 15 are electrically connected, for the digital input interface by the second digital audio and video signals output to outer audio equipment. In the present embodiment, the agreement of digital audio interface adaptation is SPDIF agreement, correspondingly, second digital audio and video signals meets SPDIF agreement, and what conversion unit of protocol 15 realized is then the function that the first digital audio and video signals meeting I2S agreement is converted to the second digital audio and video signals meeting SPDIF agreement. The type of digital audio interface 16 can be at least one in AES audio interface, SPDIF interface, coaxial audio interface and optical fiber audio interface. Second digital audio and video signals all can transmit in those digital audio interfaces 16 and export the digital input interface to outer audio equipment, for instance, the digital input interface of another microphone or audio amplifier. In the present embodiment, the quantity of digital audio interface 16 is multiple, and the type of the plurality of digital audio interface 16 can be identical or different. Such as, digital microphone 100 can have two AES audio interface simultaneously, it is also possible to have three digital audio interfaces 16 such as AES audio interface, coaxial audio interface and optical fiber audio interface simultaneously.
Further, if digital audio interface 16 is coaxial audio interface, outer audio equipment is connected with this coaxial audio interface by coaxial cable, arranges common mode choke at coaxial audio interface place, in order to the radiation suppressing coaxial cable to produce. In one embodiment, the primary and secondary turn ratio of common mode choke is 1:1, and one end of common mode choke and conversion unit of protocol 15 are electrically connected, and its other end and digital audio interface 16 are electrically connected. By this common mode choke, further increase the capacity of resisting disturbance of vibrating diaphragm capacitor microphone, improve the tonequality of vibrating diaphragm capacitor microphone.
Obviously, above-described embodiment of the present utility model is only for clearly demonstrating this utility model example, and is not the restriction to embodiment of the present utility model. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. All any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within this utility model scope of the claims.
Claims (10)
1. a vibrating diaphragm capacitor microphone, it is characterized in that, it is provided with vibrating diaphragm miaow core including cylinder, described inner barrel upper end, described vibrating diaphragm miaow core is electrically connected with the interior audio treatment unit being located at described cylinder, being additionally provided with battery in described cylinder, described battery is located at the voltage regulator circuit of described cylinder and is electrically connected with described audio treatment unit in passing through.
2. vibrating diaphragm capacitor microphone according to claim 1, it is characterised in that described battery is rechargeable battery, described cylinder body outer wall is provided with USB charging inlet and is electrically connected with described battery.
3. vibrating diaphragm capacitor microphone according to claim 1, it is characterized in that, described vibrating diaphragm capacitor microphone is located at electric-quantity monitoring unit that described cylinder and described battery be electrically connected and is located at the electric quantity display device that described cylinder body outer wall is electrically connected with described electric-quantity monitoring unit in also including, described electric quantity display device is word or figure shows the electricity that described battery is remaining.
4. vibrating diaphragm capacitor microphone according to claim 1, it is characterized in that, described cylinder body outer wall is additionally provided with the first audio interface and is electrically connected with described audio treatment unit, monitors for accessing, for outside audiomonitor, the audio signal that described audio treatment unit is exported.
5. vibrating diaphragm capacitor microphone according to claim 4, it is characterized in that, described cylinder body outer wall is additionally provided with the second audio interface and described audio treatment unit is electrically connected, mutual for carrying out voice data for outside mobile phone, panel computer or personal computer access and described audio treatment unit.
6. vibrating diaphragm capacitor microphone according to claim 5, it is characterized in that, described first audio interface and/or described second audio interface are TRRS interface, include the first ring, the second ring, the 3rd ring and Fourth Ring from the inside to surface successively, wherein, described first ring is L channel end and the L channel outfan of described audio treatment unit is electrically connected, and described second ring is R channel end and the R channel outfan of described audio treatment unit is electrically connected; Described equipment body is additionally provided with switching switch, described 3rd ring, described Fourth Ring by switch switch and the audio input end of described audio treatment unit, hold electric connection, described in while the audio input end electric connection of the 3rd ring described in described switching on-off control and described audio treatment unit, Fourth Ring is electrically connected with the ground end of described audio treatment unit, or described in while the ground end electric connection of described 3rd ring and described audio treatment unit, Fourth Ring and the audio input end with described audio treatment unit are electrically connected.
7. vibrating diaphragm capacitor microphone according to claim 1, it is characterized in that, described vibrating diaphragm capacitor microphone also includes the analogue audio frequency being electrically connected with described audio treatment unit and is connected unit, it is wireless transceiver or entity interface that described analogue audio frequency connects unit, wireless transceiver is Wifi transceiver module, bluetooth transceiver module, Zigbee transceiver module or 3G transceiver module, and entity interface is XLR interface, RCA interface or TRS interface.
8. vibrating diaphragm capacitor microphone according to claim 1, it is characterised in that described audio treatment unit also includes AD conversion unit, conversion unit of protocol, and described cylinder is provided with digital audio interface; Wherein,
Described AD conversion unit is electrically connected with vibrating diaphragm miaow core, for the simulated audio signal of described vibrating diaphragm miaow core collection is converted to the first digital audio and video signals;
Described conversion unit of protocol is electrically connected with described AD conversion unit, and for described first digital audio and video signals is converted to the second digital audio and video signals, described second digital audio and video signals meets the digital audio interface agreement adaptive with described digital audio interface;
Described digital audio interface is electrically connected with described conversion unit of protocol, for the digital input interface by described second digital audio and video signals output to outer audio equipment.
9. vibrating diaphragm capacitor microphone according to claim 8, it is characterised in that described digital audio interface includes at least one in AES audio interface, coaxial audio interface and optical fiber audio interface.
10. vibrating diaphragm capacitor microphone according to claim 8, it is characterized in that, described digital audio interface is coaxial audio interface, itself and described outer audio equipment are connected with each other by coaxial cable, common mode choke is set at described coaxial audio interface place, in order to the radiation suppressing described coaxial cable to produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619157.2U CN205320228U (en) | 2015-08-17 | 2015-08-17 | Vibrating diaphragm capacitor microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619157.2U CN205320228U (en) | 2015-08-17 | 2015-08-17 | Vibrating diaphragm capacitor microphone |
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| Publication Number | Publication Date |
|---|---|
| CN205320228U true CN205320228U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520619157.2U Expired - Fee Related CN205320228U (en) | 2015-08-17 | 2015-08-17 | Vibrating diaphragm capacitor microphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587589A (en) * | 2018-12-07 | 2019-04-05 | 盐城玉欣电动科技有限公司 | One kind exempting from the cordless handset that charges |
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2015
- 2015-08-17 CN CN201520619157.2U patent/CN205320228U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587589A (en) * | 2018-12-07 | 2019-04-05 | 盐城玉欣电动科技有限公司 | One kind exempting from the cordless handset that charges |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20210817 |