CN205812389U - Radio digital mic - Google Patents
Radio digital mic Download PDFInfo
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- CN205812389U CN205812389U CN201620097123.6U CN201620097123U CN205812389U CN 205812389 U CN205812389 U CN 205812389U CN 201620097123 U CN201620097123 U CN 201620097123U CN 205812389 U CN205812389 U CN 205812389U
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- 230000004899 motility Effects 0.000 abstract 1
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- 230000015572 biosynthetic process Effects 0.000 description 2
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- 230000001360 synchronised effect Effects 0.000 description 2
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Abstract
This utility model embodiment provides a kind of radio digital mic, including: bluetooth module, recording module, tonequality detection module, control module and WiFi module；Wherein, bluetooth module, recording module and tonequality detection module are sequentially connected with, and control module connects tonequality detection module, bluetooth module and WiFi module respectively；Bluetooth module is for receiving the control command that capture apparatus sends；Record module for recording the speech data of the person of being taken；Tonequality detection module is for detecting the quality judging speech data.This utility model embodiment judges the quality of the speech data of its person of being taken recorded by radio digital mic detection, and select different wireless transmission methods to send speech data to capture apparatus according to the quality height of speech data, improve the motility of communication between radio digital mic and video capture equipment.
Description
Technical Field
The embodiment of the utility model provides a relate to communication technology field, especially relate to a wireless digital microphone.
Background
The wireless digital microphone can record the voice of a person to be shot, an analog voice signal is converted into a digital voice signal, the digital voice signal is sent to the video shooting equipment, and the video shooting equipment synthesizes the video data shot by the video shooting equipment and the digital voice signal sent by the wireless digital microphone into a voice video file with a luxurious picture and text.
In the prior art, a wireless digital microphone generally adopts a wireless communication technology to perform wireless communication with a video shooting device, and the same wireless communication technology is adopted when information interaction is performed between the wireless digital microphone and the video shooting device, so that the wireless communication mode between the wireless digital microphone and the video shooting device is lack of flexibility.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a wireless digital microphone to increase the flexibility of the wireless communication mode between wireless digital microphone and the video shooting equipment.
An aspect of the embodiments of the present invention is to provide a wireless digital microphone, including: the system comprises a Bluetooth module, a recording module, a tone quality detection module, a control module and a WiFi module; wherein,
the Bluetooth module, the recording module and the sound quality detection module are sequentially connected, and the control module is respectively connected with the sound quality detection module, the Bluetooth module and the WiFi module;
the Bluetooth module is used for receiving a control command sent by the shooting equipment, and the control command comprises an initial recording moment;
the recording module is used for recording the voice data of the photographed person according to the initial recording;
the voice quality detection module is used for detecting and judging the quality of the voice data;
the control module is used for selecting a wireless fidelity (WiFi) transmission mode if the voice data are high-quality voice data; if the voice data is low-quality voice data, selecting a Bluetooth transmission mode;
the Bluetooth module is further used for sending the voice data to the shooting equipment according to the Bluetooth transmission mode selected by the control module so that the shooting equipment combines the voice data and the video data recorded by the shooting equipment according to the initial recording moment into a voice video file;
And the WiFi module is used for sending the voice data to the shooting equipment according to the WiFi transmission mode selected by the control module so that the shooting equipment combines the voice data and the video data recorded by the shooting equipment according to the initial recording moment into a voice video file.
The embodiment of the utility model provides a wireless digital microphone detects the quality of judging its voice data who is shot the person who records through wireless digital microphone to according to voice data's high quality low different wireless transmission mode of selection sends voice data to shooting equipment, improved wireless digital microphone and video shooting equipment between wireless communication mode's flexibility.
Drawings
Fig. 1 is a structural diagram of a wireless digital microphone according to an embodiment of the present invention;
fig. 2 is a structural diagram of a wireless digital microphone according to another embodiment of the present invention;
fig. 3 is a structural diagram of a wireless digital microphone according to another embodiment of the present invention;
fig. 4 is a structural diagram of a wireless digital microphone according to another embodiment of the present invention.
Detailed Description
Fig. 1 is a structural diagram of a wireless digital microphone according to an embodiment of the present invention. As shown in fig. 1, the wireless digital microphone 90 includes a bluetooth module 91, a recording module 92, a sound quality detection module 93, a control module 94, and a WiFi module 95; wherein, bluetooth module 91, record module 92 and tone quality detection module 93 and connect gradually, and control module 94 connects tone quality detection module 93, bluetooth module 91 and wiFi module 95 respectively.
The bluetooth module 91 is configured to receive a control command sent by a shooting device in a bluetooth transmission manner, where the control command includes an initial recording time; the recording module 92 is used for recording the voice data of the photographed person according to the initial recording; the voice quality detection module 93 is used for detecting and judging the quality of the voice data; the control module 94 is configured to select a WiFi transmission mode if the voice data is high-quality voice data; if the voice data is low-quality voice data, selecting a Bluetooth transmission mode; the bluetooth module 91 is further configured to send the voice data to the shooting device according to the bluetooth transmission mode selected by the control module, so that the shooting device merges the voice data and the video data recorded by the shooting device according to the initial recording time into a voice video file; the WiFi module 95 is configured to send the voice data to the shooting device according to the WiFi transmission mode selected by the control module, so that the shooting device merges the voice data and the video data recorded by the shooting device according to the initial recording time into a voice video file.
The embodiment of the utility model provides an in, wireless digital microphone centre gripping is on the clothes by the shooter, the shooting equipment specifically is the cell-phone, a video camera, panel computer etc, wireless digital microphone is used for recording by the shooter's voice data, the shooting equipment is used for recording by the shooter's video data, in order to guarantee voice data and video data synchronization, do not consider under the condition of signal transmission delay, the starting moment that begins to record by the shooter's video data at the shooting equipment sends control command to wireless digital microphone through bluetooth transmission mode, this control command is including the starting moment of recording, it is preferred, the shooting equipment with by the shooter in bluetooth transmission distance.
After receiving the control command, the wireless digital microphone analyzes the initial recording time in the control command, and records the voice signal of the photographed from the initial recording time, wherein the voice signal is an analog signal, and the wireless digital microphone converts the analog voice signal into digital voice data through an analog-to-digital conversion method, specifically, pulse code modulation.
Preferably, the wireless digital microphone calculates the signal-to-noise ratio of the voice data according to the voice data and the noise signal doped in the voice data; if the signal-to-noise ratio is greater than or equal to a threshold value, the wireless digital microphone determines that the voice data is high-quality voice data; and if the signal-to-noise ratio is smaller than a threshold value, the wireless digital microphone determines that the voice data is low-quality voice data.
The wireless digital microphone calculates the signal-to-noise ratio of the voice data according to the voice data and the noise signals doped in the voice data, and the method comprises the following steps:
the wireless digital microphone calculates the signal-to-noise ratio of the voice data according to the effective voltage value of the voice data and the effective voltage value of the noise signal through a formula (1):
SNR＝20lg(VS/VN) (1)
Wherein SNR represents the signal-to-noise ratio, VS represents a voltage significance of the voice data, and VN represents a voltage significance of the noise signal.
Specifically, the wireless digital microphone calculates a signal-to-noise ratio SNR according to formula (1), and if the SNR is greater than or equal to a threshold, the wireless digital microphone determines that the voice data is high-quality voice data, and if the SNR is less than the threshold, the wireless digital microphone determines that the voice data is low-quality voice data.
If the voice data is high-quality voice data, the wireless digital microphone selects a WiFi transmission mode with higher bandwidth to send the voice data to the shooting equipment, and the shooting equipment combines the voice data and video data recorded by the shooting equipment according to the initial recording moment into a voice video file.
If the voice data is low-quality voice data, the wireless digital microphone selects a Bluetooth transmission mode with narrow bandwidth and low power consumption to send the voice data to the shooting equipment, and the shooting equipment combines the voice data and video data recorded by the shooting equipment according to the initial recording moment into a voice video file.
The embodiment of the utility model provides a detect the quality of judging its voice data who is shot the person who records through wireless digital microphone to according to voice data's high quality low different wireless transmission mode of selection sends voice data to shooting equipment, improved wireless digital microphone and video shooting equipment between wireless communication mode's flexibility.
Fig. 2 is a structural diagram of a wireless digital microphone according to another embodiment of the present invention. As shown in fig. 2, the voice quality detection module 93 includes a calculation unit 931 and a determination unit 932, wherein the calculation unit 931 is configured to calculate a signal-to-noise ratio of the voice data according to the voice data and a noise signal doped in the voice data; the determining unit 932 is configured to determine that the voice data is high-quality voice data if the signal-to-noise ratio is greater than or equal to a threshold; and if the signal-to-noise ratio is smaller than a threshold value, determining that the voice data is low-quality voice data.
The calculating unit 931 is specifically configured to calculate a signal-to-noise ratio of the voice data according to the voltage effective value of the voice data and the voltage effective value of the noise signal by formula (1):
SNR＝20lg(VS/VN) (1)
wherein SNR represents the signal-to-noise ratio, VS represents a voltage significance of the voice data, and VN represents a voltage significance of the noise signal.
The WiFi module 95 is specifically configured to send the voice data to the shooting device in real time; or the bluetooth module 91 is specifically configured to send the voice data to the shooting device in real time.
The embodiment of the utility model provides an in, if voice data is high-quality voice data, then the higher wiFi transmission mode of wireless digital microphone selective bandwidth will voice data sends in real time shooting equipment, shooting equipment will voice data with shooting equipment foundation the video data amalgamation that the originated moment of recording recorded is voice video file.
If the voice data is low-quality voice data, the wireless digital microphone selects a Bluetooth transmission mode with narrow bandwidth and low power consumption to send the voice data to the shooting equipment in real time, and the shooting equipment combines the voice data and video data recorded by the shooting equipment according to the initial recording moment into a voice video file.
The embodiment of the utility model provides a send voice data for shooting equipment in real time through wireless digital microphone to make shooting equipment in time synthesize pronunciation video file, improved the synthetic real-time of pronunciation video file.
Fig. 3 is a structural diagram of a wireless digital microphone according to another embodiment of the present invention. As shown in fig. 3, the wireless digital microphone 90 further includes a storage module 96, and the storage module 96 is used for storing the voice data of the photographed person.
The WiFi module 95 is further configured to send high-quality voice identification information to the shooting device if the voice data is high-quality voice data, so that the shooting device selects a WiFi transmission mode according to the high-quality voice identification information to send a first voice data transmission request to the WiFi module; and the WiFi module selects a WiFi transmission mode according to the first voice data transmission request and sends the voice data stored in the storage module to the shooting equipment.
The bluetooth module 91 is further configured to send low-quality voice identifier information to the shooting device if the voice data is low-quality voice data, so that the shooting device selects a bluetooth transmission mode according to the low-quality voice identifier information to send a second voice data transmission request to the bluetooth module; and the Bluetooth module selects a Bluetooth transmission mode according to the second voice data transmission request and sends the voice data stored in the storage module to the shooting equipment.
The embodiment of the utility model provides an in, wireless digital microphone is not real-time to sending voice data to shooting equipment, but will record the voice data of the person of shooing earlier and save wireless digital microphone's electric quantity, so that record more voice data.
The embodiment of the utility model provides an in, detect out when wireless digital microphone voice data is high-quality voice data, to shooting equipment sends high-quality voice identification information, so that shooting equipment learns that the voice data that wireless digital microphone recorded and stored is high-quality voice data, wireless digital microphone select wiFi transmission mode to wireless digital microphone sends a voice data transmission request.
Specifically, the shooting device may periodically send a first voice data transmission request to the wireless digital microphone, so that the wireless digital microphone periodically sends the stored voice data to the shooting device; or the wireless digital microphone can send storage state information of the wireless digital microphone to the shooting device in real time, at intervals or periodically, the storage state information can comprise the stored capacity size and/or the residual capacity size, and when the stored capacity size and/or the residual capacity size exceed a certain threshold value, the shooting device sends a first voice data transmission request to the wireless digital microphone; or the wireless digital microphone can send the power state information of the wireless digital microphone to the shooting device in real time, at intervals or periodically, the power state information comprises the residual power, and when the residual power is smaller than a certain threshold value, the shooting device sends a first voice data transmission request to the wireless digital microphone.
When the wireless digital microphone receives a first voice data transmission request sent by the shooting equipment, the wireless digital microphone selects a WiFi transmission mode to send the stored voice data to the shooting equipment.
When the wireless digital microphone detects that the voice data is low-quality voice data, sending low-quality voice identification information to the shooting equipment so that the shooting equipment can know that the voice data recorded and stored by the wireless digital microphone currently is the low-quality voice data, and sending a second voice data transmission request to the wireless digital microphone by the wireless digital microphone in a Bluetooth transmission mode.
Specifically, the shooting device may periodically send a second voice data transmission request to the wireless digital microphone, so that the wireless digital microphone periodically sends the stored voice data to the shooting device; or the wireless digital microphone can send storage state information of the wireless digital microphone to the shooting device in real time, at intervals or periodically, the storage state information can comprise the stored capacity size and/or the residual capacity size, and when the stored capacity size and/or the residual capacity size exceed a certain threshold value, the shooting device sends a second voice data transmission request to the wireless digital microphone; or the wireless digital microphone can send the power state information of the wireless digital microphone to the shooting device in real time, at intervals or periodically, the power state information comprises the residual power, and when the residual power is smaller than a certain threshold value, the shooting device sends a second voice data transmission request to the wireless digital microphone.
And when the wireless digital microphone receives a second voice data transmission request sent by the shooting equipment, selecting a Bluetooth transmission mode to send the stored voice data to the shooting equipment.
The embodiment of the utility model provides a through the voice data of the person of being shot that it recorded of wireless digital microphone storage, but wireless digital microphone's electric quantity can be saved in non-real-time transmission to record more voice data.
Fig. 4 is a structural diagram of a wireless digital microphone according to another embodiment of the present invention. As shown in fig. 4, the bluetooth module 91 is further configured to receive clock synchronization information sent by the shooting device; the wireless digital microphone 90 further includes a synchronization module 97, and the synchronization module 97 is configured to synchronize a clock timing start point of the wireless digital microphone according to the clock synchronization information.
The bluetooth module 91 or the WiFi module 95 is further configured to receive the voice video file sent by the shooting device in a wireless communication manner; the storage module 96 is also used for storing the voice video file.
In the embodiment of the present invention, the wireless digital microphone with the shooting device pairs and appears, promptly before the wireless digital microphone receives the control command that the shooting device sent, it needs right the wireless digital microphone with the shooting device pairs the processing, and specific pairing processing process is: the shooting equipment sends clock synchronization information to the wireless digital microphone, wherein the clock synchronization information comprises a timestamp which is a timestamp corresponding to the moment when the shooting equipment sends the clock synchronization information.
And the wireless digital microphone starts to time according to the timestamp, namely the starting time of the wireless digital microphone is based on the time of the shooting equipment sending the clock synchronization information.
In the embodiment of the utility model, the shooting equipment will voice data with the shooting equipment basis after the video data that the moment was recorded is merged into the voice video file to the originated video data that records, shooting equipment sends this voice video file for wireless digital microphone, receives and saves this language video file by wireless digital microphone to shooting equipment can't export the computer with the language video file that its is synthesized, for example, the computer does not support the format of the synthetic language video file of some mobile communication terminals, then shooting equipment sends this voice video file for wireless digital microphone, wireless digital microphone can turn into the format that the computer supported with the format of language video file, guaranteed that the synthetic language video file of some mobile communication terminals can be successful and played in the computer.
The embodiment of the utility model provides a clock synchronization has been carried out wireless digital microphone and shooting equipment and has been handled, and the video data that has guaranteed that the voice data that wireless digital microphone recorded and shooting equipment recorded are synchronous, in addition, sends this pronunciation video file for wireless digital microphone through shooting equipment, has guaranteed that the language video file of some mobile communication terminal synthesis can be successful broadcast in the computer.
To sum up, the embodiment of the present invention determines the quality of the voice data of the photographed person recorded by the wireless digital microphone through the detection of the wireless digital microphone, and selects different wireless transmission modes to send the voice data to the photographing device according to the quality of the voice data, thereby improving the flexibility of the wireless communication mode between the wireless digital microphone and the video photographing device; the voice data is sent to the shooting equipment in real time through the wireless digital microphone, so that the shooting equipment can synthesize the voice video file in time, and the real-time property of the voice video file synthesis is improved; the wireless digital microphone stores the recorded voice data of the photographed person, and the non-real-time transmission can save the electric quantity of the wireless digital microphone so as to record more voice data; the wireless digital microphone and the shooting equipment are subjected to clock synchronization processing, so that the voice data recorded by the wireless digital microphone and the video data recorded by the shooting equipment are ensured to be synchronous, and in addition, the voice video file is sent to the wireless digital microphone through the shooting equipment, so that the voice video file synthesized by some mobile communication terminals can be successfully played in a computer.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and, may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some of the steps described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing embodiment, which is not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A wireless digital microphone, comprising: the system comprises a Bluetooth module, a recording module, a tone quality detection module, a control module and a WiFi module; wherein,
the Bluetooth module, the recording module and the sound quality detection module are sequentially connected, and the control module is respectively connected with the sound quality detection module, the Bluetooth module and the WiFi module;
the Bluetooth module is used for receiving a control command sent by the shooting equipment, and the control command comprises an initial recording moment;
the recording module is used for recording the voice data of the photographed person according to the initial recording;
the voice quality detection module is used for detecting and judging the quality of the voice data;
the control module is used for selecting a wireless fidelity (WiFi) transmission mode if the voice data are high-quality voice data; if the voice data is low-quality voice data, selecting a Bluetooth transmission mode;
the Bluetooth module is further used for sending the voice data to the shooting equipment according to the Bluetooth transmission mode selected by the control module so that the shooting equipment combines the voice data and the video data recorded by the shooting equipment according to the initial recording moment into a voice video file;
And the WiFi module is used for sending the voice data to the shooting equipment according to the WiFi transmission mode selected by the control module so that the shooting equipment combines the voice data and the video data recorded by the shooting equipment according to the initial recording moment into a voice video file.
2. The wireless digital microphone according to claim 1, wherein the sound quality detection module comprises:
the computing unit is used for computing the signal-to-noise ratio of the voice data according to the voice data and the noise signals doped in the voice data;
a determining unit, configured to determine that the voice data is high-quality voice data if the signal-to-noise ratio is greater than or equal to a threshold; and if the signal-to-noise ratio is smaller than a threshold value, determining that the voice data is low-quality voice data.
3. The wireless digital microphone according to claim 2, wherein the calculating unit is specifically configured to calculate the signal-to-noise ratio of the voice data according to the effective voltage value of the voice data and the effective voltage value of the noise signal by formula (1):
SNR＝20lg(VS/VN) (1)
wherein SNR represents the signal-to-noise ratio, VS represents a voltage effective value of the voice data, and VN represents a voltage effective value of the noise signal.
4. The wireless digital microphone according to claim 3, wherein the WiFi module is specifically configured to send the voice data to the photographing device in real time; or
The Bluetooth module is specifically configured to send the voice data to the shooting device in real time.
5. The wireless digital microphone according to claim 3, further comprising:
and the storage module is used for storing the voice data of the shot person after the recording module records the voice data of the shot person according to the initial recording.
6. The wireless digital microphone according to claim 5, wherein the WiFi module is further configured to send high-quality voice identification information to the capturing device if the voice data is high-quality voice data, so that the capturing device selects a WiFi transmission mode according to the high-quality voice identification information to send a first voice data transmission request to the WiFi module; and the WiFi module selects a WiFi transmission mode according to the first voice data transmission request and sends the voice data stored in the storage module to the shooting equipment.
7. The wireless digital microphone according to claim 5, wherein the Bluetooth module is further configured to send low-quality voice identification information to the capturing device if the voice data is low-quality voice data, so that the capturing device selects a Bluetooth transmission mode according to the low-quality voice identification information to send a second voice data transmission request to the Bluetooth module; and the Bluetooth module selects a Bluetooth transmission mode according to the second voice data transmission request and sends the voice data stored in the storage module to the shooting equipment.
8. The wireless digital microphone according to any one of claims 5 to 7, wherein the Bluetooth module is further configured to receive clock synchronization information sent by the shooting device;
the wireless digital microphone further comprises:
and the synchronization module is used for synchronizing the clock timing starting point of the wireless digital microphone according to the clock synchronization information.
9. The wireless digital microphone according to claim 8, wherein the bluetooth module or the WiFi module is further configured to receive the voice video file sent by the shooting device through a wireless communication manner;
the storage module is also used for storing the voice video file.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620097123.6U CN205812389U (en) | 2016-01-29 | 2016-01-29 | Radio digital mic |
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| CN201620097123.6U CN205812389U (en) | 2016-01-29 | 2016-01-29 | Radio digital mic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108966250A (en) * | 2018-06-29 | 2018-12-07 | 努比亚技术有限公司 | Weak signal call method, mobile terminal and computer readable storage medium |
| WO2020006664A1 (en) * | 2018-07-02 | 2020-01-09 | 深圳市大疆创新科技有限公司 | Control method for camera device, camera device, camera system, and storage medium |
| CN114339712A (en) * | 2021-12-29 | 2022-04-12 | 广州艾美网络科技有限公司 | Wireless microphone pairing method and device and wireless microphone management system |
-
2016
- 2016-01-29 CN CN201620097123.6U patent/CN205812389U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108966250A (en) * | 2018-06-29 | 2018-12-07 | 努比亚技术有限公司 | Weak signal call method, mobile terminal and computer readable storage medium |
| CN108966250B (en) * | 2018-06-29 | 2023-07-07 | 山东沃伦通信技术有限公司 | Weak signal communication method, mobile terminal and computer readable storage medium |
| WO2020006664A1 (en) * | 2018-07-02 | 2020-01-09 | 深圳市大疆创新科技有限公司 | Control method for camera device, camera device, camera system, and storage medium |
| US11368611B2 (en) | 2018-07-02 | 2022-06-21 | SZ DJI Technology Co., Ltd. | Control method for camera device, camera device, camera system, and storage medium |
| CN114339712A (en) * | 2021-12-29 | 2022-04-12 | 广州艾美网络科技有限公司 | Wireless microphone pairing method and device and wireless microphone management system |
| CN114339712B (en) * | 2021-12-29 | 2024-05-07 | 广州艾美网络科技有限公司 | Pairing method and device of wireless microphone and wireless microphone management system |
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