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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- 238000012806 monitoring device Methods 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 208000030984 MIRAGE syndrome Diseases 0.000 abstract 1
- TVLSRXXIMLFWEO-UHFFFAOYSA-N prochloraz Chemical compound C1=CN=CN1C(=O)N(CCC)CCOC1=C(Cl)C=C(Cl)C=C1Cl TVLSRXXIMLFWEO-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
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- 238000005034 decoration Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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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
The utility model relates to a transaudient field especially relates to a vibrating diaphragm electric capacity microphone.
Background
In the field of electroacoustic technology, diaphragm capacitor microphones have the characteristics of high sensitivity and high directivity, and therefore, they are generally used for various professional music and video recording. Generally, a capacitor microphone with an effective diameter of 3/4 inches or more is called a large-diaphragm capacitor microphone, a capacitor microphone with an effective diameter of 5/8 to 3/4 inches is called a medium-diaphragm capacitor microphone, a capacitor microphone with an effective diameter of 5/8 inches is called a small-diaphragm capacitor microphone, and the larger the diaphragm is, the higher the microphone sensitivity is, and the finer the sound is. The sound pick-up principle of the diaphragm capacitor microphone is that an extremely thin gold-plated film is used as one electrode of a capacitor, another fixed electrode is arranged at a distance of a few millimeters from the zero capacitor microphone, so that a capacitor with a few P farads is formed, the film electrode changes the capacity of the capacitor along with the vibration of sound waves to form an electric signal, and the internal resistance of the capacitor is extremely high and reaches the level of G ohm (1G ohm is 1000000000 ohm) because the capacitor is only a few P farads (1 farad is 1000000000P farad). A "pre-amplifier circuit" is required to convert this G-ohm impedance to a general impedance of around 600 ohms, which is usually integrated inside a condenser microphone and requires a "48V phantom power supply" to power the circuit. However, the phantom power supply in the market is large in size and inconvenient to carry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide one kind from taking the battery, the vibrating diaphragm electric capacity microphone that uses for the microphone after stepping up the voltage that the battery provided. The utility model discloses a realize like this: the utility model provides a vibrating diaphragm electric capacity microphone, includes the barrel the inside upper end of barrel is equipped with vibrating diaphragm miaow core, vibrating diaphragm miaow core with establish in the audio processing unit electric connection of barrel, still be equipped with the battery in the barrel, the battery through establish in the voltage control circuit of barrel with audio processing unit electric connection.
Further, the battery is rechargeable battery, the barrel outer wall be equipped with the USB interface that charges with battery electric connection.
Further, the vibrating diaphragm capacitor microphone is still including interior locating the barrel with cell electric connection's electric quantity detecting element and locating the barrel outer wall with cell electric connection's electric quantity display device is detected to the electric quantity, electric quantity display device is characters or graphic display the electric quantity that the battery remains.
Furthermore, the outer wall of the barrel body is also provided with a first audio interface electrically connected with the audio processing unit, and the first audio interface is used for an external mobile phone, a tablet personal computer or a personal computer to access and perform audio data interaction with the audio processing unit.
Furthermore, the outer wall of the barrel body is also provided with a second audio interface electrically connected with the audio processing unit and used for an external monitoring device to access and monitor the audio signal output by the audio processing unit.
Further, the first audio interface and/or the second audio interface is a TRRS interface, and sequentially includes a first ring, a second ring, a third ring, and a fourth ring from inside to outside, where the first ring is a left channel end electrically connected to the left channel output end of the audio processing unit, and the second ring is a right channel end electrically connected to the right channel output end of the audio processing unit; still be equipped with change over switch in the equipment main part, the third ring, the fourth ring pass through change over switch with audio processing unit's audio input, ground end electric connection, change over switch control the third ring with audio processing unit's audio input electric connection the fourth ring with audio processing unit's ground end electric connection, perhaps the third ring with audio processing unit's ground end electric connection the fourth ring with audio processing unit's audio input electric connection.
Furthermore, the vibrating diaphragm capacitor microphone further comprises an analog audio connection unit electrically connected with the audio processing unit, the analog audio connection unit is a wireless transceiver or an entity interface, the wireless transceiver is a Wifi transceiver module, a bluetooth transceiver module, a Zigbee transceiver module or a 3G transceiver module, and the entity interface is an XLR interface, an RCA interface or a TRS interface.
Furthermore, the audio processing unit also comprises an analog-to-digital conversion unit and a protocol conversion unit, and a digital audio interface is arranged on the cylinder; wherein,
the analog-to-digital conversion unit is electrically connected with the vibrating diaphragm microphone core and is used for converting an analog audio signal collected by the vibrating diaphragm microphone core into a first digital audio signal;
the protocol conversion unit is electrically connected with the analog-to-digital conversion unit and is used for converting the first digital audio signal into a second digital audio signal, and the second digital audio signal conforms to a digital audio interface protocol adaptive to the digital audio interface;
the digital audio interface is electrically connected with the protocol conversion unit and is used for outputting the second digital audio signal to a digital input interface of external audio equipment.
Further, the digital audio interface includes at least one of an AES audio interface, a coaxial audio interface, and a fiber optic audio interface.
Further, the digital audio interface is a coaxial audio interface, and is connected to the external audio device through a coaxial cable, and a common mode choke coil is disposed at the coaxial audio interface to suppress radiation generated by the coaxial cable.
The utility model has the advantages that: the diaphragm capacitor microphone is provided with a battery, and the low voltage output by the battery is increased to a proper voltage to supply power to the diaphragm capacitor microphone through the voltage regulating circuit, so that the inconvenience caused by the fact that a common diaphragm capacitor microphone is required to be externally connected with a phantom power supply when in use is avoided.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without inventive labor.
Fig. 1 is a structural diagram of an embodiment of a vibrating diaphragm capacitor microphone of the present invention.
Fig. 2 is a functional structure block diagram of an embodiment of a vibrating diaphragm capacitor microphone according to the present invention;
fig. 3 is a functional structure diagram of the vibrating diaphragm capacitor microphone with a digital audio interface.
Detailed Description
The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Referring to fig. 1 and 2, vibrating diaphragm capacitor microphone, including barrel 1 the inside upper end of barrel 1 is equipped with vibrating diaphragm miaow core 2, and the effect of vibrating diaphragm miaow core 2 is the signal of telecommunication with sound signal conversion, vibrating diaphragm miaow core 2 through the wire rod with establish in locate the audio processing unit 3 electric connection of barrel 1, audio processing unit 3's effect is handled the signal of telecommunication after the vibrating diaphragm miaow core 2 conversion, be provided with battery 4 in the barrel 1, battery 4 through establishing in locate the barrel 1 voltage control circuit 5 with audio processing unit 3 electric connection, voltage control circuit 5's effect is the low-voltage conversion that converts battery 4 output into the required operating voltage of vibrating diaphragm capacitor microphone, this operating voltage generally is 48V.
The beneficial effect that this technical scheme obtained: the diaphragm capacitor microphone is provided with a battery 4, the low voltage output by the battery 4 is increased to 48V for supplying power to the diaphragm capacitor microphone through a voltage regulating circuit 5, and the inconvenience caused by the fact that a common diaphragm capacitor microphone must be externally connected with a 48V phantom power supply when in use is avoided.
In a more preferred embodiment, the battery 4 is a rechargeable battery, and the outer wall of the barrel 1 is provided with a USB charging interface 6 electrically connected to the battery 4. The USB charging interface 6 is used for being connected to commercial power through an external power line to charge the battery 4.
The vibrating diaphragm electric capacity microphone is still including interior locating barrel 1 with cell 4 electric connection's electric quantity detecting element 7 and locating 1 outer wall of barrel with 7 electric connection's electric quantity display device 8 is listened to the electric quantity, electric quantity detecting element 7 is used for listening the electric quantity of cell 4, electric quantity display device 8 is characters or graphic display the electric quantity that cell 4 is remained. The user can observe the electric quantity of the battery 4, and the battery is charged in time when the electric quantity is insufficient.
In a more preferred embodiment, the outer wall of the cylinder 1 is further provided with a first audio interface 9 electrically connected to the audio processing unit 3, for an external monitoring device to access and monitor the audio signal output by the audio processing unit 3. Furthermore, the first audio interface 9 is a four-section audio interface, and the current four-section audio plug has two different standards, one is national standard (OMTP), and the tip, the first middle ring, the second middle ring, and the tail end are respectively a left audio channel end, a right audio channel end, a microphone end, and a ground wire end; the other is a CTIA tip, a first middle ring, a second middle ring and a tail end which are respectively a left sound channel end, a right sound channel end, a ground wire end and a microphone end. It can be seen that the plug of the national and international standards differs in that the second middle ring, the end, is exactly opposite. Accordingly, the four-section type audio interface is also classified into a national standard (OMTP) and an international standard (CTIA) interface. And only when the four-section audio plug and the four-section audio interface are in the same standard, the external monitoring equipment is connected to the diaphragm capacitor microphone to normally work. Therefore, when the audio plug of the external monitoring device and the audio interface standard of the diaphragm capacitor microphone are different, they are not compatible with each other, and the external monitoring device cannot work normally. In order to solve this problem, this embodiment provides a technical solution that can freely switch between OMTP and CTIA: the first audio interface 9 sequentially includes, from inside to outside, a first ring a1, a second ring a2, a third ring a3, and a fourth ring a4, wherein the first ring a1 is a left channel end electrically connected to a left channel output end of the audio processing unit 3, and the second ring a2 is a right channel end electrically connected to a right channel output end of the audio processing unit 3; the outer wall of the barrel 1 is further provided with a first switch 10, the third ring a3 and the fourth ring a4 are electrically connected with the audio input end and the ground end of the audio processing unit 3 through the first switch 10, the first switch 10 controls the third ring a3 and the audio input end of the audio processing unit 3 to be electrically connected with the fourth ring a4 and the ground end of the audio processing unit 3, or the third ring a3 and the ground end of the audio processing unit 3 to be electrically connected with the fourth ring a4 and the audio input end of the audio processing unit 3 to be electrically connected. The beneficial effects of the technical scheme are as follows: the diaphragm capacitor microphone is compatible with external monitoring equipment of OMTP standard and CTIA standard plugs.
In a more preferred embodiment, the outer wall of the cylinder 1 is further provided with a second audio interface 11 electrically connected to the audio processing unit 3, for an external mobile phone, a tablet computer or a personal computer to access and perform audio data interaction with the audio processing unit 3. An external mobile phone, a tablet computer or a personal computer may input an audio signal to the audio processing unit 3 for processing, for example, outputting an accompaniment, or record an audio signal processed by the audio processing unit 3, for example, record a mixed sound of a human voice and an accompaniment collected by the vibrating diaphragm microphone 2. Furthermore, the second audio interface 11 is a four-segment audio interface, and sequentially includes a first ring b1, a second ring b2, a third ring b3 and a fourth ring b4 from inside to outside, wherein the first ring b1 is a left channel end electrically connected to a left channel output end of the audio processing unit 3, and the second ring b2 is a right channel end electrically connected to a right channel output end of the audio processing unit 3; the outer wall of the barrel is further provided with a second switch 12, the third ring b3 and the fourth ring b4 are electrically connected with the audio input end and the ground end of the audio processing unit 3 through the second switch 12, the second switch 12 controls the third ring b3 and the audio input end of the audio processing unit 3 while the fourth ring b4 is electrically connected with the ground end of the audio processing unit 3, or the third ring b3 and the ground end of the audio processing unit 3 while the fourth ring b4 is electrically connected with the audio input end of the audio processing unit 3. In a similar way, the technical scheme has the following beneficial effects: the vibrating diaphragm capacitor microphone can be compatible with an external mobile phone, a tablet computer or a personal computer of an OMTP standard plug and a CTIA standard plug.
The vibrating diaphragm capacitor microphone further comprises an analog audio connecting unit 13 electrically connected with the audio processing unit 3, the analog audio connecting unit 13 is a wireless transceiver, and specifically, the analog audio connecting unit 13 is a Wifi transceiver module, a bluetooth transceiver module, a Zigbee transceiver module or a 3G transceiver module. Alternatively, the analog audio connection unit 13 is an entity connection interface, and includes an XLR interface, an RCA interface, or a TRS interface. The diaphragm capacitor microphone can be electrically connected with an external audio device such as a sound card through the analog audio connection unit 13 for data interaction.
In a preferred embodiment, referring to fig. 3, the diaphragm capacitor microphone further includes an analog-to-digital conversion unit 14, a protocol conversion unit 15, and a digital audio interface 16. The analog-to-digital conversion unit 14 is configured to convert an analog audio signal collected by the vibrating diaphragm core into a first digital audio signal. The analog-to-digital conversion unit 14 may be an analog-to-digital converter (a/D converter) or a chip integrating an analog-to-digital conversion function. In this embodiment, the analog-to-digital conversion unit 14 converts the analog audio signal into a first digital audio signal conforming to the I2S (Inter-ICSound) protocol. The protocol conversion unit 15 is configured to convert the first digital audio signal into a second digital audio signal conforming to a digital audio interface protocol adapted to the digital audio interface 16. The digital audio protocol may be the AES protocol (also referred to as the AES/EBU protocol), the SPDIF protocol, the ADAT protocol, the I2S protocol, the TDM protocol, or the MIDI protocol. The digital audio interface 16 is electrically connected to the protocol conversion unit 15, and is configured to output the second digital audio signal to a digital input interface of an external audio device. In this embodiment, the protocol adapted to the digital audio interface is the SPDIF protocol, accordingly, the second digital audio signal conforms to the SPDIF protocol, and the protocol conversion unit 15 implements the function of converting the first digital audio signal conforming to the I2S protocol into the second digital audio signal conforming to the SPDIF protocol. The type of the digital audio interface 16 may be at least one of an AES audio interface, an SPDIF interface, a coaxial audio interface, and a fiber optic audio interface. The second digital audio signals can be transmitted through the digital audio interfaces 16 and output to a digital input interface of an external audio device, such as another microphone or a digital input interface of a sound box. In this embodiment, the number of the digital audio interfaces 16 is plural, and the types of the plural digital audio interfaces 16 may be the same or different. For example, the digital microphone 100 may have two AES audio interfaces at the same time, or may have three digital audio interfaces 16 such as an AES audio interface, a coaxial audio interface, and an optical fiber audio interface at the same time.
Further, if the digital audio interface 16 is a coaxial audio interface, the external audio device is connected to the coaxial audio interface through a coaxial cable, and a common mode choke coil is disposed at the coaxial audio interface to suppress radiation generated by the coaxial cable. In one embodiment, the common mode choke has a primary-to-secondary turns ratio of 1:1, one end of the common mode choke is electrically connected to the protocol conversion unit 15, and the other end of the common mode choke is electrically connected to the digital audio interface 16. Through this common mode choke, further improved the interference killing feature of vibrating diaphragm electric capacity microphone, improved the tone quality of vibrating diaphragm electric capacity microphone.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a vibrating diaphragm electric capacity microphone, its characterized in that, include the barrel the inside upper end of barrel is equipped with vibrating diaphragm miaow core, vibrating diaphragm miaow core with establish in locate the audio processing unit electric connection of barrel, still be equipped with the battery in the barrel, the battery through establish in locate the voltage regulating circuit of barrel with audio processing unit electric connection.
2. The vibrating diaphragm condenser microphone of claim 1, wherein the battery is a rechargeable battery, and the outer wall of the cylinder body is provided with a USB charging interface electrically connected with the battery.
3. The vibrating diaphragm condenser microphone of claim 1, wherein the vibrating diaphragm condenser microphone further comprises an electric quantity detecting unit internally disposed on the tube body and electrically connected to the battery, and an electric quantity display device disposed on the outer wall of the tube body and electrically connected to the electric quantity detecting unit, wherein the electric quantity display device displays the electric quantity left by the battery in terms of characters or figures.
4. The vibrating diaphragm capacitor microphone as claimed in claim 1, wherein the outer wall of the cylinder body is further provided with a first audio interface electrically connected to the audio processing unit, for an external monitoring device to monitor the audio signal output by the audio processing unit.
5. The vibrating diaphragm capacitor microphone as claimed in claim 4, wherein the outer wall of the cylinder body is further provided with a second audio interface electrically connected to the audio processing unit, for an external mobile phone, a tablet computer or a personal computer to access and perform audio data interaction with the audio processing unit.
6. The vibrating diaphragm capacitor microphone of claim 5, wherein the first audio interface and/or the second audio interface is a TRRS interface, and sequentially comprises a first ring, a second ring, a third ring and a fourth ring from inside to outside, wherein the first ring is a left channel end electrically connected to a left channel output end of the audio processing unit, and the second ring is a right channel end electrically connected to a right channel output end of the audio processing unit; still be equipped with change over switch in the equipment main part, the third ring, the fourth ring pass through change over switch with audio processing unit's audio input, ground end electric connection, change over switch control the third ring with audio processing unit's audio input electric connection the fourth ring with audio processing unit's ground end electric connection, perhaps the third ring with audio processing unit's ground end electric connection the fourth ring with audio processing unit's audio input electric connection.
7. The vibrating diaphragm capacitor microphone as claimed in claim 1, further comprising an analog audio connection unit electrically connected to the audio processing unit, wherein the analog audio connection unit is a wireless transceiver or a physical interface, the wireless transceiver is a Wifi transceiver, a bluetooth transceiver, a Zigbee transceiver or a 3G transceiver, and the physical interface is an XLR interface, an RCA interface or a TRS interface.
8. The vibrating diaphragm capacitor microphone as claimed in claim 1, wherein the audio processing unit further comprises an analog-to-digital conversion unit and a protocol conversion unit, and a digital audio interface is provided on the cylinder; wherein,
the analog-to-digital conversion unit is electrically connected with the vibrating diaphragm microphone core and is used for converting an analog audio signal collected by the vibrating diaphragm microphone core into a first digital audio signal;
the protocol conversion unit is electrically connected with the analog-to-digital conversion unit and is used for converting the first digital audio signal into a second digital audio signal, and the second digital audio signal conforms to a digital audio interface protocol adaptive to the digital audio interface;
the digital audio interface is electrically connected with the protocol conversion unit and is used for outputting the second digital audio signal to a digital input interface of external audio equipment.
9. The vibrating diaphragm capacitor microphone of claim 8, wherein the digital audio interface comprises at least one of an AES audio interface, a coaxial audio interface, and a fiber optic audio interface.
10. The vibrating diaphragm capacitor microphone as claimed in claim 8, wherein the digital audio interface is a coaxial audio interface interconnected to the external audio device by a coaxial cable, and a common mode choke is provided at the coaxial audio interface for suppressing radiation generated by the coaxial cable.
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 |
|---|---|---|---|
| CN201520619157.2U Expired - Fee Related CN205320228U (en) | 2015-08-17 | 2015-08-17 | Vibrating diaphragm capacitor microphone |
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| CN (1) | CN205320228U (en) |
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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| 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 |