Universal multi-channel voice mixing equipment

Abstract

The utility model relates to the technical field of multi-channel audio processing, aims to solve the problems of large equipment size, heavy weight, complex operation, waste of cost, non-adjustable brightness of an indicating lamp and incapability of carrying out voice mixing and noise reduction processing on multi-channel audio in the prior art, and provides universal multi-channel voice mixing equipment which comprises a shell, a panel with a spiral lock is arranged at the front end of the shell, a rear support plate is arranged at the rear end of the shell, a plug seat is arranged on the rear support plate, and a power panel, an audio receiving module and a digital processing module are arranged in the shell; the panel with the spiral lock is connected with a display panel, and the display panel is electrically connected with the power panel and is electrically connected with the digital processing module and the audio receiving module in sequence; and a plurality of audio channel control buttons electrically connected to the digital processing module are arranged on the display panel. The beneficial effects of the utility model are that the device is small in size, light in weight, simple to operate, cost-saving, adjustable in brightness of the indicating lamp, and capable of carrying out voice mixing and noise reduction processing on multiple paths of audios.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-channel audio processing, in particular to a universal multi-channel voice mixing device. Background Art

[0002] In some systems, there are usually multiple instruments or audio equipment, and the output audio signal amplitude, impedance, etc. of each device are inconsistent. If each device is equipped with a set of headphones and microphones, since the output impedance and output signal amplitude range of each instrument or audio equipment are not uniform, the system will have a large number of headphones and microphones with various models, which is inconvenient for operators to manage and use, and wastes costs.

[0003] The display panels of most mixers on the market do not have indicator lights, or the brightness of the panel indicator lights cannot be adjusted, or the panels do not support lighting; some indicator lights are too bright under night conditions, which irritates the driver's eyes and distracts attention.

[0004] Some existing audio mixing devices have fewer audio channels, while some audio mixing devices have more audio channels, but are too large to meet the requirements of use in a cockpit. Utility Model Content

[0005] The utility model aims to provide a universal multi-channel voice mixing device to solve the problems in the prior art that the device is large in size, heavy in weight, complicated in operation, wastes costs, the brightness of indicator lights cannot be adjusted, and multi-channel audio cannot be mixed and noise reduced.

[0006] The embodiment of the utility model is achieved as follows:

[0007] The utility model embodiment provides a universal multi-channel voice mixing device, which includes a housing;

[0008] The front end of the housing has a panel with a spiral lock, and the panel with a spiral lock is detachably fixedly connected to the front end of the housing;

[0009] The rear end of the shell has a rear support plate, and the rear support plate is detachably connected to the rear end of the shell;

[0010] A plug socket is installed on the rear support plate, and a power board is provided inside the outer shell, and the power board is electrically connected to the plug socket;

[0011] An audio receiving module and a digital processing module are arranged inside the outer shell, and the audio receiving module and the digital processing module are electrically connected to the power board respectively;

[0012] A display panel is arranged outside the panel with spiral lock, the display panel is detachably fixed on the panel with spiral lock, and the display panel is electrically connected to the digital processing module;

[0013] A plurality of audio channel control buttons are arranged on the display panel, and the plurality of audio channel control buttons are electrically connected to the digital processing module.

[0014] When in use, insert the audio connection line into the plug socket on the rear support plate, so that some audio and electricity can easily enter the power board inside the outer shell, some audio enters the audio receiving module, and then enters the digital processing module, and is processed by the digital processing module to form a combined audio and output it to the audio receiving module. The combined audio in the audio receiving module is output through the plug socket connected to the power board. Finally, the control of each audio channel is achieved by controlling the audio channel control buttons on the display panel.

[0015] The universal multi-channel voice mixing device disclosed in this embodiment is provided with the above-mentioned audio receiving module and the above-mentioned digital processing module, so that multiple channels of audio can be processed and merged, and the above-mentioned audio channel control buttons can accurately control the opening and closing of each audio channel, thereby making the universal multi-channel voice mixing device have the beneficial effects of small device size, light weight, simple operation, cost saving, adjustable indicator light brightness, and the ability to perform voice mixing and noise reduction processing on multiple channels of audio.

[0016] Optionally, the plug socket has a power input area, an audio output area and an audio input area, and the power input area, the audio output area and the audio input area are all located on the plug socket.

[0017] This setting is more centralized, simplifies the device input and output terminals, and makes device connection and processing more convenient.

[0018] Optionally, the audio input area has a first audio channel, a second audio channel, a third audio channel, a fourth audio channel, a fifth audio channel, a sixth audio channel, a seventh audio channel, an eighth audio channel, a ninth audio channel, a tenth audio channel and an eleventh audio channel;

[0019] The first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel are all electrically connected to the audio receiving module through the power board;

[0020] Each audio channel on the audio receiving module is electrically connected to the digital processing module.

[0021] With such arrangement, audio can enter the audio receiving module through the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel, and then enter the digital processing module through the audio receiving module. The digital processing module processes each channel of audio to form a combined audio, which is then output to the audio receiving module and then output from the audio output area in the plug socket through the power board, thereby completing the processing of each channel of audio.

[0022] Optionally: the plurality of audio channel control buttons include a first button, a second button, a third button, a fourth button, a fifth button, a sixth button, a seventh button, an eighth button, a ninth button, a tenth button and an eleventh button;

[0023] The first button, the second button, the third button, the fourth button, the fifth button, the sixth button, the seventh button, the eighth button, the ninth button, the tenth button and the eleventh button control the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel respectively.

[0024] With such arrangement, the first button, the second button, the third button, the fourth button, the fifth button, the sixth button, the seventh button, the eighth button, the ninth button, the tenth button and the eleventh button can accurately control the digital processing module to perform audio processing on the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel, thereby effectively solving the problem of distortion, noise, howling and the like in the output audio when multiple audio channels are input simultaneously.

[0025] Optionally: the first button, the second button, the third button, the fourth button, the fifth button, the sixth button, the seventh button, the eighth button, the ninth button, the tenth button and the eleventh button all have indicator lights, and the indicator lights all have day mode and night mode with adjustable brightness, the day mode has four levels, and the night mode has two levels.

[0026] In this way, by setting various gears, the above-mentioned indicator light has adjustable brightness. Under night conditions, the brightness of the above-mentioned indicator light is adjustable, which can avoid irritating the driver's eyes and distracting the driver's attention, and effectively improve the driver's driving safety.

[0027] Optionally: the indicator light has night vision green lighting, and the indicator light and each button are an integral component.

[0028] With such a setting, the night vision green lighting means that the above indicator light has a green lighting effect at night, and the indicator light can also be clearly seen at night.

[0029] Optionally: the first button, the second button, the third button, the fourth button, the fifth button, the sixth button, the seventh button, the eighth button, the ninth button, the tenth button and the eleventh button are evenly distributed on the display panel.

[0030] Such an arrangement makes the display panel more regular, fully utilizes the installation surface, and is beneficial to controlling the size and weight of the device.

[0031] Optionally: the display panel is further provided with a rotation control button, the rotation control button has an indicator line, the display panel corresponding to the rotation control button is sequentially provided with a first marking line gear, a second marking line gear, a third marking line gear, a fourth marking line gear and a fifth marking line gear, the first marking line gear, the second marking line gear, the third marking line gear, the fourth marking line gear and the fifth marking line gear are electrically connected to the first audio channel, the second audio channel, the third audio channel, the fourth audio channel and the fifth audio channel respectively;

[0032] The display panel corresponding to the rotary control button also has a zero position, and the zero position is electrically connected to the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel, respectively.

[0033] In this way, when the indicator line on the rotary control button is aligned with the zero position, the device can perform voice mixing and noise reduction processing on the audio of the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel;

[0034] When in emergency mode, the indicator lines on the rotary control button can respectively indicate the first marking line position, the second marking line position, the third marking line position, the fourth marking line position and the fifth marking line position, thereby supporting direct audio output of any one of the first audio channel, the second audio channel, the third audio channel, the fourth audio channel and the fifth audio channel.

[0035] Optionally, the panel with the spiral lock has a plurality of screws, and the display panel is fixedly connected to the panel with the spiral lock through the plurality of screws.

[0036] Such arrangement and connection facilitate mutual disassembly and assembly of the panel with the spiral lock and the display panel, and also facilitate maintenance or replacement, thereby effectively increasing the service life of the device.

[0037] Optionally, any one of the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel is a microphone audio channel;

[0038] Any audio channel in the above audio output area is a headphone output channel.

[0039] In this way, the microphone audio channel is set to enable the device to process voice audio, which increases the scope of use of the device;

[0040] After the digital processing module mixes the audio signals of the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel, the audio in the microphone audio channel is output through the headphone output channel on the plug socket.

[0041] Optionally: the digital processing module is mainly composed of an FPGA chip, an AD chip, a DA chip, and an RS422 chip.

[0042] With such configuration, the digital processing module is used to digitize the audio and then perform mixing processing on the audio, and can simultaneously digitize the audio signals of the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel. The FPGA is mainly responsible for performing algorithm processing such as combining and noise reduction on the digital audio; is responsible for communicating with the display panel and executing the channel switch instructions and volume adjustment instructions required by the display panel; and is responsible for sending the input microphone signal through the RS422 interface.

[0043] Optionally: the power board mainly consists of a DC-DC chip, an LDO chip and an EMI module.

[0044] Such an arrangement can provide sufficient power and audio transmission function for the audio receiving module, the digital processing module and the display panel.

[0045] Optionally: a brightness adjustment button is provided on the display panel, and the brightness adjustment button can adjust the brightness of the indicator light.

[0046] In summary, the utility model discloses a universal multi-channel voice mixing device with the advantages of small size, light weight, simple operation, cost saving, adjustable indicator light brightness, and the ability to perform voice mixing and noise reduction on multi-channel audio. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 A cross-sectional view of a universal multi-channel voice mixing device in an embodiment of the utility model;

[0049] Figure 2 This is a schematic diagram of the structure of a universal multi-channel voice mixing device in an embodiment of the utility model;

[0050] Figure 3 It is a front view of a universal multi-channel voice mixing device in an embodiment of the utility model;

[0051] Figure 4 It is a rear view of a universal multi-channel voice mixing device in an embodiment of the utility model;

[0052] Figure 5 In the embodiment of the utility model Figure 3 A top view of

[0053] Figure 6 The present invention is a working principle diagram of a universal multi-channel voice mixing device in an embodiment of the present invention.

[0054] Icons: 1-housing, 2-panel with spiral lock, 3-rear support plate, 4-plug socket, 5-power board, 6-audio receiving module, 7-digital processing module, 8-display panel, 9-audio channel control button, 10-power input area, 11-audio output area, 12-audio input area, 13-first audio channel, 14-second audio channel, 15-third audio channel, 16-fourth audio channel, 17-fifth audio channel, 18-sixth audio channel, 19-seventh audio channel, 20-eighth audio channel, 21-ninth audio channel, 22-tenth audio channel, 23-eleventh audio channel, 24-first button, 25-second button, 26-third button Button, 27-fourth button, 28-fifth button, 29-sixth button, 30-seventh button, 31-eighth button, 32-ninth button, 33-tenth button, 34-eleventh button, 35-indicator light, 36-rotation control button, 37-indicator line, 38-first marking line gear, 39-second marking line gear, 40-third marking line gear, 41-fourth marking line gear, 42-fifth marking line gear, 43-zero gear, 44-screw, 45-microphone audio channel, 46-headphone output channel, 47-first backup audio button, 48-second backup audio button, 49-transmit button, 50-self-test button, 51-combined audio, 52-brightness button. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0056] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] Example

[0058] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , this embodiment provides a universal multi-channel voice mixing device, including a housing 1;

[0059] The front end of the housing 1 is provided with a panel 2 with a spiral lock, and the panel 2 with a spiral lock is detachably fixedly connected to the front end of the housing 1;

[0060] The rear end of the housing 1 has a rear support plate 3, which is detachably connected to the rear end of the housing 1;

[0061] A plug socket 4 is mounted on the rear support plate 3, and a power board 5 is provided inside the housing 1, and the power board 5 is electrically connected to the plug socket 4;

[0062] An audio receiving module 6 and a digital processing module 7 are provided inside the housing 1, and the audio receiving module 6 and the digital processing module 7 are electrically connected to the power board 5 respectively;

[0063] A display panel 8 is arranged outside the panel with spiral lock 2, and the display panel 8 is detachably fixed on the panel with spiral lock 2, and the display panel 8 is electrically connected to the digital processing module 7;

[0064] A plurality of audio channel control buttons 9 are disposed on the display panel 8 , and the plurality of audio channel control buttons 9 are electrically connected to the digital processing module 7 .

[0065] When in use, the audio connection line is inserted into the plug socket 4 on the rear support plate 3, so that some audio and electricity can easily enter the power board 5 inside the shell 1, and some audio enters the audio receiving module 6, and then enters the digital processing module 7. After being processed by the digital processing module 7, a combined audio is formed and output to the audio receiving module 6. The combined audio in the audio receiving module 6 is output through the plug socket 4 connected to the power board 5. Finally, the control of each audio channel is realized by controlling the several audio channel control buttons 9 on the display panel 8.

[0066] The universal multi-channel voice mixing device disclosed in this embodiment is provided with an audio receiving module 6 and a digital processing module 7, so that multiple audio channels are processed and merged, and a plurality of audio channel control buttons 9 can accurately control the opening and closing of each audio channel, thereby making the universal multi-channel voice mixing device have the beneficial effects of small device size, light weight, simple operation, cost saving, adjustable brightness of the indicator light 35, and the ability to perform voice mixing and noise reduction processing on multiple audio channels.

[0067] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The plug socket 4 has a power input area 10, an audio output area 11 and an audio input area 12. The power input area 10, the audio output area 11 and the audio input area 12 are all located on the plug socket 4. This arrangement is more centralized, simplifies the input and output terminals of the device, and makes device connection and processing more convenient.

[0068] In this embodiment, the power input area 10 is four audio routes, the audio output area 11 is eight audio routes, and the audio input area 12 is a plurality of audio routes.

[0069] The audio input area 12 has a first audio channel 13, a second audio channel 14, a third audio channel 15, a fourth audio channel 16, a fifth audio channel 17, a sixth audio channel 18, a seventh audio channel 19, an eighth audio channel 20, a ninth audio channel 21, a tenth audio channel 22 and an eleventh audio channel 23;

[0070] The first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23 are all electrically connected to the audio receiving module 6 through the power board 5; each audio channel on the audio receiving module 6 is electrically connected to the digital processing module 7, and the audio can enter the audio receiving module 6 through the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23, and then enter the digital processing module 7 through the audio receiving module 6, and the digital processing module 7 processes each audio channel to form a combined audio channel, which is then output to the audio receiving module 6, and then output from the audio output area 11 in the plug socket 4 through the power board 5, thereby completing the processing of each audio channel.

[0071] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the plurality of audio channel control buttons 9 include a first button 24, a second button 25, a third button 26, a fourth button 27, a fifth button 28, a sixth button 29, a seventh button 30, an eighth button 31, a ninth button 32, a tenth button 33 and an eleventh button 34;

[0072] The first button 24, the second button 25, the third button 26, the fourth button 27, the fifth button 28, the sixth button 29, the seventh button 30, the eighth button 31, the ninth button 32, the tenth button 33 and the eleventh button 34 control the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23, respectively. The digital processing module 7 can accurately control the digital processing module 7 to perform audio processing on the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23, thereby effectively solving the problem of audio distortion, noise, howling and the like in the output audio when multiple audio channels are input at the same time.

[0073] The first button 24, the second button 25, the third button 26, the fourth button 27, the fifth button 28, the sixth button 29, the seventh button 30, the eighth button 31, the ninth button 32, the tenth button 33 and the eleventh button 34 are all provided with indicator lights 35. The indicator lights 35 have a day mode and a night mode with adjustable brightness. The day mode has four gears and the night mode has two gears. By setting each gear, the indicator lights 35 have adjustable brightness. Under night conditions, the brightness of the indicator lights 35 is adjustable, which can avoid irritating the driver's eyes and distracting the driver's attention, thereby effectively improving the driver's driving safety.

[0074] The indicator light 35 has night vision green lighting. The indicator light 35 and each button are an integral component. The night vision green lighting means that the indicator light 35 has a green lighting effect at night, and the indicator light 35 can also be clearly seen at night.

[0075] The first button 24, the second button 25, the third button 26, the fourth button 27, the fifth button 28, the sixth button 29, the seventh button 30, the eighth button 31, the ninth button 32, the tenth button 33 and the eleventh button 34 are evenly distributed on the display panel 8, which makes the display panel 8 more regular, fully utilizes the installation surface, and is beneficial to controlling the size and weight of the device.

[0076] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, the display panel 8 is also provided with a rotation control button 36, the rotation control button 36 has an indicator line 37, and the display panel 8 corresponding to the rotation control button 36 is provided with a first marking line gear 38, a second marking line gear 39, a third marking line gear 40, a fourth marking line gear 41 and a fifth marking line gear 42 in sequence, and the first marking line gear 38, the second marking line gear 39, the third marking line gear 40, the fourth marking line gear 41 and the fifth marking line gear 42 are electrically connected to the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16 and the fifth audio channel 17 respectively;

[0077] The display panel 8 corresponding to the rotation control button 36 also has a zero position 43, and the zero position 43 is electrically connected to the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23. When the indicator line 37 on the rotation control button 36 is aligned with the zero position 43, the device can rotate the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23. , the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23 perform voice mixing and noise reduction processing; when in emergency mode, the indicator line 37 on the rotary control button 36 can respectively indicate the first marking line position 38, the second marking line position 39, the third marking line position 40, the fourth marking line position 41 and the fifth marking line position 42, thereby supporting the direct output of audio of any one of the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16 and the fifth audio channel 17.

[0078] The panel 2 with spiral lock has several screws 44, and the display panel 8 is fixedly connected to the panel 2 with spiral lock by the several screws 44. Such connection facilitates mutual disassembly and assembly of the panel 2 with spiral lock and the display panel 8, and also facilitates maintenance or replacement, thereby effectively improving the service life of the device.

[0079] Any one of the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23 is a microphone audio channel 45; any one of the audio channels in the audio output area 11 is a headphone output channel 46, and the setting of the microphone audio channel 45 enables the device to process voice audio, thereby increasing the scope of use of the device;

[0080] After the digital processing module 7 mixes the audio signals of the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23, the audio in the microphone audio channel 45 is output through the headphone output channel 46 (not shown) on the plug socket 4.

[0081] In this embodiment, the impedance of the audio output of the headphone output channel 46 is 150Ω, and the output power can reach 7.5W.

[0082] The digital processing module 7 is mainly composed of an FPGA chip, an AD chip, a DA chip, and an RS422 chip. The digital processing module 7 is used to digitize the audio and then mix the audio. It can simultaneously digitize the audio signals of the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22, and the eleventh audio channel 23. The FPGA is mainly responsible for performing algorithm processing such as combining and noise reduction on the digital audio; it is responsible for communicating with the display panel 8 and executing the channel switch instructions and volume adjustment instructions required by the display panel 8; it is responsible for sending the input microphone signal through the RS422 interface.

[0083] The power board 5 is mainly composed of a DC-DC chip, an LDO chip and an EMI module, which can provide sufficient power and audio transmission function for the audio receiving module 6, the digital processing module 7 and the display panel 8.

[0084] The display panel 8 is provided with a brightness adjustment button, which can adjust the brightness of the indicator light 35 .

[0085] In this embodiment, all audio will enter the power board 5 from the plug socket 4, and then enter the audio receiving module 6 and the digital processing module 7 in sequence, and be processed by the digital processing module 7 to be merged into one audio output to the audio receiving module 6, and then output from the audio output area 11 of the plug socket 4 through the power board 5.

[0086] In this embodiment, there are also a first standby audio button 47, a second standby audio button 48, a transmit button 49, a self-test button 50 and a brightness button 52. The first standby audio button 47 and the second standby audio button 48 have the same functions as the first button 24, the second button 25, the third button 26, the fourth button 27, the fifth button 28, the sixth button 29, the seventh button 30, the eighth button 31, the ninth button 32, the tenth button 33 and the eleventh button 34.

[0087] The transmitting button 49 can transmit a signal by a short press, and the self-check button 50 can be pressed to perform a self-check to ensure the normal operation of the device. The brightness button 52 can adjust the brightness of each indicator light 35, effectively avoiding irritation to the driver's eyes and distraction.

[0088] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the device adopts a breathing sound noise reduction processing method and a combining algorithm. The combining algorithm solves the problem of audio distortion, noise, howling, etc. when multiple audio channels are input at the same time. The breathing sound noise reduction algorithm solves the problem of the device identifying normal breathing sounds and suppressing breathing sounds, which will not cause audio interruption, word dropout, etc.

[0089] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, the device has three headphone output channels 46, and the communication rate can reach up to 3Mbps; among the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23, one channel supports mV level signal amplitude input, and the maximum audio input amplitude of the other channels can reach 30V; the channel isolation is not less than 60dB; the headphone output power is not less than 50mW, and the power is adjustable.

[0090] The first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23 are all equipped with compression circuits (not shown in the figure), and the output audio will not be seriously distorted due to the audio input amplitude exceeding the specified value.

[0091] See also Figure 2 and Figure 3 In this embodiment, the device has a size of 146mm×60mm×100mm, is light, weighs only 0.75kg, has blue-white light illumination, and the brightness of the digital tube and the indicator light 35 is adjustable, and has a noise reduction effect.

[0092] See also Figure 2 and Figure 3In the present embodiment, the sizes and spacings of the first button 24, the second button 25, the third button 26, the fourth button 27, the fifth button 28, the sixth button 29, the seventh button 30, the eighth button 31, the ninth button 32, the tenth button 33 and the eleventh button 34 are designed according to the statistical data of the human tactile report of the MIT Touch Lab to avoid touch failure due to being too small, thereby generating a large number of invalid user operations and poor user experience.

[0093] See also Figure 2 and Figure 3 In this embodiment, the indicator light 35 is a whole, and its multiplexing function has five meanings. Short pressing each button can control the volume function of the corresponding channel, and long pressing each button function can control the corresponding channel switch; the indicator light 35 is off, indicating that the corresponding channel is closed, and it is always on, indicating that the channel is open. Slow flashing indicates that the channel is in the volume adjustment state, and fast flashing indicates that the channel is in a call.

[0094] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the display panel 8 can control the working state of each audio channel, and the indicator light 35 and the digital tube brightness are divided into day mode and night mode, wherein the day mode is divided into four levels and the night mode is divided into two levels. The lighting of the display panel 8 supports night vision green lighting; the area of ​​each button is more than 7mm×9mm, and the spacing is 2mm.

[0095] In this embodiment, the audio receiving module 6 receives eleven external audios, any one of which can be microphone audio. The audio receiving module 6 transmits the first audio channel 13, the second audio channel 14, the third audio channel 15, the fourth audio channel 16, the fifth audio channel 17, the sixth audio channel 18, the seventh audio channel 19, the eighth audio channel 20, the ninth audio channel 21, the tenth audio channel 22 and the eleventh audio channel 23 to the digital processing module 7 for mixing processing, and the processed combined audio is output from the plug socket 4 through the audio receiving module 6 and the power board 5.

[0096] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A universal multi-channel voice mixing device, Features: Including housing; The front end of the housing has a panel with a spiral lock, and the panel with a spiral lock is detachably fixedly connected to the front end of the housing; The rear end of the shell has a rear support plate, and the rear support plate is detachably connected to the rear end of the shell; A plug socket is installed on the rear support plate, and a power board is provided inside the outer shell, and the power board is electrically connected to the plug socket; An audio receiving module and a digital processing module are arranged inside the outer shell, and the audio receiving module and the digital processing module are electrically connected to the power board respectively; A display panel is arranged outside the panel with spiral lock, and the display panel is detachably fixed on the panel with spiral lock, and the display panel is electrically connected to the digital processing module; A plurality of audio channel control buttons are arranged on the display panel, and the plurality of audio channel control buttons are all electrically connected to the digital processing module.

2. A universal multi-channel voice mixing device according to claim 1, Features: The plug socket has a power input area, an audio output area and an audio input area, and the power input area, the audio output area and the audio input area are all located on the plug socket.

3. A universal multi-channel voice mixing device according to claim 2, Features: The audio input area has a first audio channel, a second audio channel, a third audio channel, a fourth audio channel, a fifth audio channel, a sixth audio channel, a seventh audio channel, an eighth audio channel, a ninth audio channel, a tenth audio channel and an eleventh audio channel; The first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel are all electrically connected to the audio receiving module through the power board; Each audio channel on the audio receiving module is electrically connected to the digital processing module.

4. A universal multi-channel voice mixing device according to claim 3, Features: The plurality of audio channel control buttons include a first button, a second button, a third button, a fourth button, a fifth button, a sixth button, a seventh button, an eighth button, a ninth button, a tenth button and an eleventh button; The first button, the second button, the third button, the fourth button, the fifth button, the sixth button, the seventh button, the eighth button, the ninth button, the tenth button, and the eleventh button control the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel, and the eleventh audio channel, respectively.

5. A universal multi-channel voice mixing device according to claim 4, Features: The first button, the second button, the third button, the fourth button, the fifth button, the sixth button, the seventh button, the eighth button, the ninth button, the tenth button and the eleventh button all have indicator lights, and the indicator lights all have day mode and night mode with adjustable brightness, the day mode has four levels, and the night mode has two levels.

6. A universal multi-channel voice mixing device according to claim 5, Features: The indicator light has night vision green lighting, and the indicator light and each button are an integral component.

7. A universal multi-channel voice mixing device according to claim 4, Features: The first button, the second button, the third button, the fourth button, the fifth button, the sixth button, the seventh button, the eighth button, the ninth button, the tenth button and the eleventh button are evenly distributed on the display panel.

8. A universal multi-channel voice mixing device according to claim 3, Features: The display panel is further provided with a rotation control button, the rotation control button has an index line, and the display panel corresponding to the rotation control button is sequentially provided with a first index line gear, a second index line gear, a third index line gear, a fourth index line gear and a fifth index line gear, the first index line gear, the second index line gear, the third index line gear, the fourth index line gear and the fifth index line gear are electrically connected to the first audio channel, the second audio channel, the third audio channel, the fourth audio channel and the fifth audio channel respectively; The display panel corresponding to the rotary control button also has a zero position, and the zero position is electrically connected to the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel, respectively.

9. A universal multi-channel voice mixing device according to claim 1, Features: The panel with spiral locks is provided with a plurality of screws, and the display panel is fixedly connected to the panel with spiral locks through the plurality of screws.

10. A universal multi-channel voice mixing device according to claim 3, Features: Any one of the first audio channel, the second audio channel, the third audio channel, the fourth audio channel, the fifth audio channel, the sixth audio channel, the seventh audio channel, the eighth audio channel, the ninth audio channel, the tenth audio channel and the eleventh audio channel is a microphone audio channel; Any audio channel in the audio output area is a headphone output channel.

Images