CN108401200A - A kind of microphone apparatus - Google Patents

Abstract

An embodiment of the present invention provides a microphone device, which relates to the technical field of multimedia and solves the problem of cumbersome operation of the existing microphone. Wherein, the microphone device includes: a pickup for picking up sound; a pickup mode control module for controlling the microphone device to switch between a near-record mode and a far-record mode; wherein, when the microphone device is in the near-record mode, the pickup Pick up the sound within the first distance range; when the microphone device is in the remote recording mode, the pickup picks up the sound within the second distance range; the first distance is smaller than the second distance; the shell is equipped with a button, and the button and the pickup mode The control module is connected to send instructions to the pickup mode control module, so that the pickup mode control module controls the microphone device to switch between the near recording mode and the far recording mode according to the instruction. The microphone device provided by the embodiment of the present invention is used for sound pickup and the like.

Description

a microphone device

technical field

The invention relates to the field of multimedia technology, in particular to a microphone device.

Background technique

In daily life, there are many occasions that need to use a microphone, such as singing, live broadcast, hosting, etc. The microphone has the function of picking up sound, which can pick up the sound from the user, and the picked up sound can be used for playback, etc., to meet the needs of users.

Common microphones include many types, such as: one type of microphone is used to pick up the sound that is close to the microphone. When the user sings close to the mouth, the microphone’s sound pickup effect is better. If the mouth is too far away from the microphone, the microphone will be affected. The sound pickup effect of the user is low, and other problems occur; another example, another microphone is used to pick up the sound far away from the microphone. When the user’s mouth is far away from the microphone, the microphone’s sound pickup effect is better. If it is too close, it will affect the sound pickup effect of the microphone, and problems such as popping sound, mic spraying, and serious distortion will appear.

During use, the user may need to change the distance between the microphone and the microphone back and forth. In order to achieve a good sound pickup effect, only two types of microphones can be prepared, and the microphone can be replaced at any time. The operation is cumbersome and the user experience is not good.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a microphone device to solve the problem of cumbersome operation of the existing microphone.

In order to solve the above problems, the present invention discloses a microphone device, including: a sound pickup, used to pick up sound; a pickup mode control module, used to control the microphone device to switch between the near recording mode and the far recording mode; wherein, When the microphone device is in the near recording mode, the pickup picks up sounds within a first distance range; when the microphone device is in the far recording mode, the pickup picks up sounds within a second distance range; The first distance is smaller than the second distance; a housing, on which a button is installed, the button is connected to the pickup mode control module, and is used to send instructions to the pickup mode control module, so that The pickup mode control module controls the microphone device to switch between the near recording mode and the far recording mode according to the instruction.

Compared with the prior art, the embodiments of the present invention include the following advantages:

In the embodiment of the present invention, the user can select the near recording mode or the far recording mode of the microphone device by pressing the button. When the user selects any recording mode, the button can receive the mode selection instruction, so that the pickup mode control module can obtain The command is used to control the microphone device to enter a corresponding mode. When the microphone device enters the close recording mode, it can ensure that the pickup picks up the sound in the close range, such as the sound in the first distance range from the pickup, and when the microphone device enters the far recording mode, it can ensure that the pickup picks up the sound The effect of the sound in the long distance is the best, such as the sound of the second distance from the pickup, wherein the second distance is greater than the first distance. It can be seen that through the mode switching of the microphone device by the user, the microphone device can ensure that the sound effects in different distances are picked up. The operation of the device is simplified, and the user experience is improved.

Description of drawings

Fig. 1 is the first structural block diagram of the microphone device of the embodiment of the present invention;

2 is a second structural block diagram of a microphone device according to an embodiment of the present invention;

3 is a third structural block diagram of a microphone device according to an embodiment of the present invention;

Fig. 4 is a fourth structural block diagram of a microphone device according to an embodiment of the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1, the present embodiment provides a microphone device, including: a pickup 10, used to pick up sound; a pickup mode control module 20, used to control the microphone device to switch between a near recording mode and a far recording mode; wherein, When the microphone device was in the close recording mode, the pickup 10 picked up the sound in the first distance range; when the microphone device was in the far recording mode, the pickup 10 picked up the sound in the second distance range; the first distance was less than the second distance; the casing 1. A button 30 is installed on the casing 1, and the button 30 is connected to the pickup mode control module 20, and is used to send instructions to the pickup mode control module 20, so that the pickup mode control module 20 controls the microphone device in the close recording mode and the pickup mode according to the instructions. Switch between remote recording modes.

In this embodiment, in the same microphone device, there are not only a near-recording mode for effectively picking up short-distance sounds, but also a far-recording mode for effectively picking up long-distance sounds.

The microphone device includes a casing 1 on which a button 30 for switching the mode of the microphone device is arranged, and the casing 1 also includes a pickup 10 and a pickup mode control module 20 . The working principle of the microphone unit is:

During use, the user inputs an instruction to select the near-record mode through the button 30, and the pickup mode control module 20 receives the instruction, thereby controlling the microphone device to enter the near-record mode. The sound within the distance range can ensure the effect of picking up the sound, wherein the first distance can be set to a smaller numerical range to pick up the sound closer to the pickup 10. For example, when the user sings with the microphone device close to his mouth, or sings or karaoke at a close distance, the close recording mode can be used.

If the user inputs an instruction to select the remote recording mode through the button 30, the pickup mode control module 20 receives the instruction, thereby controlling the microphone device to enter the remote recording mode. sound, and can ensure the effect of picking up the sound, wherein the second distance can be set to a numerical range greater than the first distance, so as to pick up the sound farther away from the pickup 10 . If the user is live broadcasting, the microphone device is installed on the microphone stand, and the microphone device is far away from the user, and the remote recording mode can be used.

It can be seen that the microphone device in this embodiment can switch back and forth between the near recording mode and the far recording mode. Mode switching to meet the various needs of users. Compared with the prior art, this implementation eliminates the need for the user to continuously replace the microphone device, and at the same time eliminates a series of operations such as installation, disassembly, and tuning. And on this basis, the microphone device is in the close recording mode to pick up the sound at a close distance, which can ensure the effectiveness of the sound, and there will be no bad sound quality problems such as mic spray, popping sound, distortion, popping sound, and rustling sound. The volume of the picked-up sound is guaranteed to be normal, and there will be no problem of too loud or too small sound; the microphone device is in the remote recording mode to pick up the sound from a long distance, which can ensure the validity of the sound, and the volume and sound quality of the picked-up sound are uniform. Good, there will be no problem of picking up small sound or picking up sound suddenly loud and small.

To sum up, the above-mentioned same microphone device can provide users with two modes of near recording and far recording while ensuring the effectiveness of sound pickup, which simplifies the user's operation of the microphone device and improves user experience.

Preferably, the first distance ranges from 0 cm to 30 cm, and the second distance ranges from 30 cm to 200 cm.

The first distance range is 0cm～30cm, so that when the microphone device is in the close recording mode, the pickup 10 can effectively pick up the sound in the 30cm range; the second distance range is 30cm～200cm, so that when the microphone device is in the far recording mode, the pickup 10 10 can effectively pick up the sound within the range of 30cm to 200cm.

Preferably, on the housing 1 of the same microphone device, a button 30 can be set, and two buttons 30 can also be set to distinguish the instructions of two different modes according to the unused button mode, button duration, etc. The keys 30 are respectively used to input commands of different modes.

Specifically, there are multiple ways to implement the close recording mode and the far recording mode on the same microphone device, and this embodiment will only describe in detail the following ways 1 and 2.

method one

2 and 3, the pickup mode control module 20 includes:

The first preamplifier circuit 21, the first preamplifier circuit 21 is connected with the pickup 10, and is used to carry out preamplification processing to the sound picked up by the pickup 10; the second preamplifier circuit 22, the second preamplifier circuit 22 and the pickup 10 Pickup 10 is connected, and is used for carrying out preamplification processing to the sound that pickup 10 picks up; The first analog-to-digital conversion circuit 23, is used to carry out analog-digital conversion processing to the sound after preamplification processing; Mode selection switch 24, mode selection switch 24 In the first state, connect the first preamplifier circuit 21 and the first analog-to-digital conversion circuit 23, and in the second state, the mode selection switch 24 connects the second preamplifier circuit 22 and the first analog-to-digital conversion circuit 23 The button 30 is connected with the mode selection switch 24, and is used to send an instruction to the mode selection switch 24, so that the mode selection switch 24 switches between the first state and the second state according to the instruction; wherein, the first preamplifier circuit The amplification factor of 21 is smaller than the amplification factor of the second preamplifier circuit 22; the first state of the mode selection switch 24 corresponds to the close recording mode of the microphone device, and the second state of the mode selection switch 24 corresponds to the far recording mode of the microphone device.

In the above method, referring to Fig. 2, when the user selects the near recording mode by the button 30, the mode selection switch 24 is switched between the first preamplifier circuit 21 and the first analog-to-digital conversion circuit 23, and the mode selection switch 24 is in the first position. One state, thus the first preamplifier circuit 21, the first analog-to-digital conversion circuit 23, combined with other related circuits form a complete microphone circuit to realize the sound pickup function. The amplification factor of the first preamplifier circuit 21 is small, so the sensitivity of the microphone device is low, and it is easier to pick up close-range sounds.

Referring to Fig. 3, when the user selects the remote recording mode through the button 30, the mode selection switch 24 is switched between the second preamplifier circuit 22 and the first analog-to-digital conversion circuit 23, and the mode selection switch 24 is in the second state, so that the second The second preamplifier circuit 22 and the first analog-to-digital conversion circuit 23 are combined with other related circuits to form a complete microphone circuit to realize the sound pickup function. The amplification factor of the second preamplifier circuit 22 is greater than that of the first preamplifier circuit 21, so the sensitivity of the microphone device is higher, and it is easier to pick up distant sounds.

Preferably, the mode selection switch 24 is a single pole double throw switch.

One end of the mode selection switch 24 is electrically connected to the first analog-to-digital conversion circuit 23, and a contact is respectively arranged on the first preamplifier circuit 21 and the second preamplifier circuit 22. When the user selects the near record mode by the button 30, The other end of the mode selection switch 24 is electrically connected with the contact on the first preamplifier circuit 21. When the user selects the remote recording mode by the button 30, the other end of the mode selection switch 24 is connected with the contact on the second preamplifier circuit 22. The contacts are electrically connected.

In more ways, the mode selection switch 24 can also select other circuit elements.

Referring to Fig. 2 and Fig. 3, further, in mode one, the microphone device further includes:

The first audio digital signal processing circuit 40, the first audio digital signal processing circuit 40 is connected to the first analog-to-digital conversion circuit 23, and is used for performing audio digital signal processing on the sound after analog-to-digital conversion.

In order to improve the sound effect, sound quality, etc. of the picked-up sound, a first audio digital signal processing circuit 40 is set in the microphone device, and the first audio digital signal processing circuit 40 can carry out audio digital signal processing to the sound after the analog-to-digital conversion, as in the first audio digital signal processing circuit 40. Audio mixing, voice changing, sound effects, etc. can be added to the audio digital signal processing circuit 40, so as to further improve the performance of the microphone device and improve user experience.

Further, in way one, the microphone device further includes:

The first accompaniment input circuit 50, the first accompaniment input circuit 50 is connected with the first audio digital signal processing circuit 40, for input accompaniment audio; the first earphone amplifier circuit 60, the first earphone amplifier circuit 60 and the first accompaniment input circuit 50 Connected, for carrying out power amplification processing to accompaniment audio and sound; The first monitor earphone 70, the first monitor earphone 70 is connected with the first earphone amplifying circuit 60, is used for monitoring the accompaniment audio and sound after power amplification processing.

In order to further improve the function of the microphone device, a relevant playback circuit for realizing the earphone monitoring sound is provided. After the sound picked up by the microphone device is amplified by the first earphone amplifier circuit 60, it can be played in the first monitor earphone 70, so that the user can use The first monitoring earphone 70 monitors the picked-up sound effect in real time. Furthermore, the first accompaniment input circuit 50 is also connected before the first headphone amplifier circuit 60, and the first accompaniment input circuit 50 is used to input the accompaniment audio, so that the accompaniment audio is combined with the user's voice to achieve better At the same time, the first accompaniment input circuit 50 or other circuits in the microphone device can perform comprehensive processing such as mixing the accompaniment audio and the user's voice, so that the sound effect is better and can be used in live broadcast and other atmospheres. Correspondingly, the first headphone amplifying circuit 60 can amplify the music file after comprehensive processing of the accompaniment audio and the user's voice, so that the user can listen in real time through the first monitor headphone 70 .

way two

Referring to Fig. 4, the pickup mode control module 20 includes:

The second audio digital signal processing circuit 25, the second audio digital signal processing circuit 25 includes a sensitivity control unit 251; the button 30 is connected with the sensitivity control unit 251, and is used to send an instruction to the sensitivity control unit 251, so that the sensitivity control unit 251 according to the instruction , control the sensitivity in the second audio digital signal processing circuit 25, and switch between the first sensitivity and the second sensitivity; wherein, the first sensitivity is less than the second sensitivity; the first sensitivity corresponds to the close recording mode of the microphone device; the second The sensitivity corresponds to the remote recording mode of the microphone unit.

In mode two, a second audio digital signal processing circuit 25 is provided in the pickup mode control module 20 , and the sensitivity of the second audio digital signal processing circuit 25 can be adjusted by a sensitivity control unit 251 .

When the user selects the close recording mode by the button 30, the sensitivity control unit 251 can receive the user's selection instruction, and the sensitivity control unit 251 controls the sensitivity in the second audio digital signal processing circuit 25 to be adjusted to the first sensitivity, so that the sensitivity of the microphone device Lower, easier to pick up close sounds.

When the user selects the remote recording mode through the button 30, the sensitivity control unit 251 can receive the user's selection instruction, and the sensitivity control unit 251 controls the sensitivity in the second audio digital signal processing circuit 25 to be adjusted to the second sensitivity, so that the sensitivity of the microphone device Higher, it is easier to pick up close sounds.

Wherein, the first sensitivity is smaller than the second sensitivity, specifically, the first sensitivity ranges from -30db to -45db; the second sensitivity ranges from -15db to -30db.

When the first sensitivity is between -30db~-45db, the sound pickup can be realized at a distance of 0cm~30cm; when the second sensitivity is between -15db~-30db, the sound can be picked up at a distance of 30cm~200cm pick up.

Wherein, the sensitivity in the second audio digital signal processing circuit 25 is EQ sensitivity.

Referring to Fig. 4, further, in mode 2, the microphone device further includes:

The 3rd preamplifier circuit 80, the 3rd preamplifier circuit 80 is connected with the pickup 10, is used for carrying out the preamplification processing to the sound picked up by the pickup 10; The second analog-to-digital conversion circuit 90, the second analog-to-digital conversion circuit 90 is connected Between the third preamplification circuit 80 and the second audio digital signal processing circuit 25, it is used to carry out analog-to-digital conversion processing to the sound after pre-amplification processing; The sound after conversion process carries out audio digital signal processing; The second accompaniment input circuit 100, the second accompaniment input circuit 100 is connected with the second audio digital signal processing circuit 25, is used for input accompaniment audio frequency; The second earphone amplifying circuit 110, the second The earphone amplifying circuit 110 is connected with the second accompaniment input circuit 100, and is used for accompaniment audio and sound to carry out power amplification processing; The second monitor earphone 120, the second monitor earphone 120 is connected with the second earphone amplifying circuit 110, is used for monitoring power amplification Processed accompaniment audio and sounds.

After the pickup 10 in the microphone device picks up the sound, it is successively amplified by the third preamplifier circuit 80 and converted by the second analog-to-digital conversion circuit 90, and the second audio digital signal processing circuit 25 can carry out further audio digital signal processing , such as: the second audio digital signal processing circuit 25 can add sound mixing, voice change, sound effects, etc., to improve the sound effects, sound quality, etc. of the picked-up sound.

In mode 2, in order to further improve the function of the microphone device, a series of circuits for monitoring are added. Specifically, the sound picked up by the microphone device can be played in the second monitor earphone 120 after being amplified by the second earphone amplifier circuit 110. , so that the user can monitor the picked-up sound effect in real time. Furthermore, the second accompaniment input circuit 100 in the microphone device can also input accompaniment audio, so that the accompaniment audio can be combined with the user's voice to achieve better sound effects, and the second accompaniment input circuit 100 in the microphone device or Other circuits can perform comprehensive processing such as mixing the accompaniment audio and the user's voice, so that the sound effect recorded by the microphone device is better, and it is more suitable for live broadcast and other atmospheres. Correspondingly, the second earphone amplifying circuit 110 can amplify the music file after comprehensive processing of the accompaniment audio and the user's voice, so that the user can monitor in real time through the second monitor earphone 120 .

It should be noted that, in other modes, mode 1 and mode 2 can exist at the same time. According to the actual situation, the pick-up mode control module 20 can select one of the modes to complete the near recording mode or the far recording mode, and can also select two modes at the same time Complete near recording mode or far recording mode.

Preferably, the sound pickup 10 can be a capsule.

The "module" involved in this embodiment can be a physical device such as a motherboard, a chip, or other structural devices.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

The microphone device provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its implementation. core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be construed as limiting the present invention .

Claims (10)

1. a kind of microphone apparatus, which is characterized in that including：

Sound pick-up, for picking up sound；

Pickup mode control module is switched over for controlling the microphone apparatus between nearly record pattern and remote record pattern； Wherein, when the microphone apparatus is in the nearly record pattern, the sound in the first distance range of the microphone pickup；When When the microphone apparatus is in the remote record pattern, the sound within the scope of the microphone pickup second distance；Described first Distance is less than the second distance；

Shell is equipped with button on the shell, and the button is connect with the pickup mode control module, for being picked up to described Mode control module is taken to send instruction, so that the pickup mode control module controls the microphone dress according to described instruction It sets and is switched between the nearly record pattern and the remote record pattern.

2. microphone apparatus according to claim 1, which is characterized in that first distance range is 0cm~30cm；Institute State second distance ranging from 30cm~200cm.

3. microphone apparatus according to claim 1 or 2, which is characterized in that the pickup mode control module includes：

First pre-amplification circuit, first pre-amplification circuit are connect with the sound pick-up, for being picked up to the sound pick-up The sound taken carries out preposition enhanced processing；

Second pre-amplification circuit, second pre-amplification circuit are connect with the sound pick-up, for being picked up to the sound pick-up The sound taken carries out preposition enhanced processing；

First analog to digital conversion circuit, for carrying out analog-to-digital conversion process to the sound after preposition enhanced processing；

Mode selection switch, the mode selection switch in the first state, are connected to first pre-amplification circuit and described First analog to digital conversion circuit, the mode selection switch in the second condition, are connected to second pre-amplification circuit and described First analog to digital conversion circuit；

The button is connect with the mode selection switch, is instructed for being sent to the mode selection switch, so that the mould Formula selecting switch is switched over according to described instruction between the first state and second state；

Wherein, the amplification factor of first pre-amplification circuit is less than the amplification factor of second pre-amplification circuit；

The first state of the mode selection switch corresponds to the nearly record pattern of the microphone apparatus, the mode selection switch Second state corresponds to the remote record pattern of the microphone apparatus.

4. microphone apparatus according to claim 3, which is characterized in that the mode selection switch is opened for single-pole double throw It closes.

5. microphone apparatus according to claim 3, which is characterized in that the microphone apparatus further includes：

First audio digital signals processing circuit, the first audio digital signals processing circuit and first analog-to-digital conversion electricity Road connects, for carrying out audio digital signals processing to the sound after analog-to-digital conversion process.

6. microphone apparatus according to claim 5, which is characterized in that the microphone apparatus further includes：

First accompaniment input circuit, the first accompaniment input circuit are connect with the first audio digital signals processing circuit, For inputting audio accompaniment；

First earphone amplifying circuit, the first earphone amplifying circuit is connect with the first accompaniment input circuit, for institute It states audio accompaniment and the sound carries out power amplification processing；

First monitoring headpone, first monitoring headpone is connect with the first earphone amplifying circuit, for monitoring power amplification Treated the audio accompaniment and the sound.

7. microphone apparatus according to claim 1 or 2, which is characterized in that the pickup mode control module includes：

Second audio digital signals processing circuit, the second audio digital signals processing circuit includes sensitivity control unit；

The button is connect with the sensitivity control unit, is instructed for being sent to the sensitivity control unit, so that institute Sensitivity control unit is stated according to described instruction, controls the sensitivity in the second audio digital signals processing circuit, the It is switched between one sensitivity and the second sensitivity；

Wherein, first sensitivity is less than second sensitivity；

First sensitivity corresponds to the nearly record pattern of the microphone apparatus；Second sensitivity corresponds to the microphone dress The remote record pattern set.

8. microphone apparatus according to claim 7, which is characterized in that the value range of first sensitivity be- 30db~-45db；The value range of second sensitivity is -15db~-30db.

9. microphone apparatus according to claim 7, which is characterized in that the microphone apparatus further includes：

Third pre-amplification circuit, the third pre-amplification circuit are connect with the sound pick-up, for being picked up to the sound pick-up The sound taken carries out preposition enhanced processing；

Second analog to digital conversion circuit, second analog to digital conversion circuit are connected to the third pre-amplification circuit and described second Between audio digital signals processing circuit, for carrying out analog-to-digital conversion process to the sound after preposition enhanced processing；

The second audio digital signals processing circuit, for carrying out digital audio letter to the sound after analog-to-digital conversion process Number processing；

Second accompaniment input circuit, the second accompaniment input circuit are connect with the second audio digital signals processing circuit, For inputting audio accompaniment；

Second earphone amplifying circuit, the second earphone amplifying circuit is connect with the second accompaniment input circuit, for institute It states audio accompaniment and the sound carries out power amplification processing；

Second monitoring headpone, second monitoring headpone is connect with the second earphone amplifying circuit, for monitoring power amplification Treated the audio accompaniment and the sound.

10. microphone apparatus according to claim 1, which is characterized in that the sound pick-up is sound head.