CN219395025U

CN219395025U - Audio centralized processor

Info

Publication number: CN219395025U
Application number: CN202223105929.XU
Authority: CN
Inventors: 林蔚斌
Original assignee: Anduo Zhigu Guangzhou Electronic Technology Co ltd
Current assignee: Anduo Zhigu Guangzhou Electronic Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-07-21
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses an audio centralized processor, which comprises a shell, an operation panel arranged on the shell, a hand-in microphone input port and a 48V microphone input port which are arranged on the operation panel, wherein a hand-in microphone controller, a 48V microphone controller, a DSP digital processor and an audio processing expander are arranged in the shell, and the 48V microphone input port is connected with the audio processing expander in a mixed way through a star link by using a connecting wire. The audio centralized controller provided by the utility model can obtain good sound effect at low cost, avoids complex system connection, a 48V microphone interface of the audio centralized controller, greatly reduces cable laying while retaining the advantages of the 48V microphones, allows all microphones to be opened and can effectively inhibit howling, the 48V microphones are creatively connected by adopting a star link, and the problem that each microphone needs to be connected to a control console independently in 48V microphone application is avoided.

Description

Audio centralized processor

Technical Field

The utility model relates to the technical field of conference room audio processing, in particular to an audio centralized processor.

Background

The existing sound technology is generally divided into civil sound and professional sound, the civil sound is used for individual listening to various music, songs, voices and the like, the integration level is high, the channel is simple, the use is convenient, and the system is a single device; the professional sound equipment is generally used in a gym, a multifunctional hall and other specific places, has complex functions, generally comprises a sound source part, an audio processing and adjusting part and a sound amplifying and electroacoustic converting part, and along with the development of modern digital technology, a plurality of highly-targeted professional devices such as a sound console, an audio processor, a feedback inhibitor and the like appear in an audio processing and adjusting link;

1, in the audio application of a specific conference room and a multifunctional hall, as the field is generally narrow in application scene, the pick-up microphone has a plurality of points, the pick-up voice is required to be clear, the pick-up distance is long, no howling occurs, and aiming at the characteristics, various pick-up devices are developed in the current market: 48V conference microphone: the microphone is widely used, the signal picked up by the pickup is loaded on a 48V power supply line provided by a sound mixer (sound console), the signal is transmitted to the sound mixer (sound console) in a balanced transmission mode, the fidelity of the signal of the microphone is very high due to the characteristic of balanced transmission, the local noise is very low, and the microphone is a device with very high pickup quality, meanwhile, the application standard is adopted by countries around the world due to the long application time of the microphone, the universality of the device is very strong, but the microphone has the following defects: because each microphone needs an audio line to be connected to a mixer (sound console), when the site does not make engineering buried lines in advance, the application of the microphone is very difficult, and meanwhile, a large amount of wiring also increases engineering cost; hand-in-hand conference microphone: the conference room is characterized in that a main line is used, all microphones in the conference room are connected in series, the problem that each microphone needs to be connected to a console is avoided, meanwhile, in order to restrain howling, microphone opening control such as first-in first-out and the like is set, and the disadvantage is that the limitation of microphone opening setting is that in the conference, participants need to firstly open the microphone in front of the participants when speaking each time, and inconvenience is caused to use; wireless conference microphone: the microphone changes the signal into wireless transmission, thereby facilitating engineering construction, but when the pick-up points are more, the howling problem becomes serious, and a control console of the microphone also needs to be added with devices such as a feedback inhibitor, a mixer and the like to solve the problem; wireless hand-held conference microphone: the microphone designs the concept of the hand handle into the product, so that the problem of a large number of pick-up points is solved, but the microphone is as same as the problem of the wired hand handle product, and a participant needs to start the microphone before the participant when speaking each time, so that inconvenience is caused to use;

in addition to the sound pickup section, in order to achieve a good sound pickup effect, the following devices are generally required to be provided in the console: a mixer: when a 48V microphone or a wireless microphone is used, the device is needed to supply power to the microphone, and signals picked up by the microphone are mixed, controlled and transmitted to a later stage for use; a feedback suppressor: digital processing is carried out on the microphone signals, and acoustic feedback is eliminated through DSP processing, and the signals are transmitted to a later stage for use; sound console: centralized management, adjustment and sending of the signals to a later stage for use; hand-in-hand conference host: when a hand-held microphone is used, this is a necessary device for use with the microphone; sound box processor: and distributing signals of the front stage, setting frequency response, and sending the signals to electroacoustic conversion equipment at the corresponding position.

In a meeting room, a multifunctional hall and other specific places, the general cost budget is not high, in the existing products in the current market, no matter what kind of pickup schemes are adopted, only two possibilities exist, namely, complete equipment is configured on a console, the high cost budget is accepted, and the defects and complex system connection existing in the existing pickup equipment are accepted; secondly, in order to reduce the cost, equipment such as a sound box processor, a feedback inhibitor and the like are reduced, and the reality of poor sound effect is accepted.

For this purpose, we propose an audio centralized processor to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide an audio centralized processor to solve the problems of complex wiring, high manufacturing cost, poor pickup sound quality and difficult debugging in the audio pickup of a conference room and a multifunctional hall and the sound amplification in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the audio centralized processor comprises a shell, an operation panel arranged on the shell, a hand-in microphone input port and a 48V microphone input port which are arranged on the operation panel, wherein a hand-in microphone controller, a 48V microphone controller, a DSP digital processor and an audio processing expander are arranged in the shell, and the 48V microphone input port is connected with the audio processing expander in a mixed manner through a star link by using a connecting wire.

In a further embodiment, the connection line used for the input port of the 48V microphone adopts eight core lines, which are respectively two ground lines, two power lines, two management control lines and two audio signal lines, and the two management control lines are connected with the audio processing expander to collect and control the 48V microphone signals.

In a further embodiment, the control panel is further provided with a two-standard balancing input port, and the housing is internally provided with a two-standard balancing controller corresponding to the two-standard balancing input port.

In a further embodiment, the control panel is further provided with four-way mixing balance input ports, and the shell is internally provided with four-way mixing balance controllers corresponding to the four-way mixing balance input ports.

In a further embodiment, the control panel is further provided with a remote conference audio RCA input port, and a remote conference audio RCA controller corresponding to the remote conference audio RCA input port is arranged in the shell.

In a further embodiment, the control panel is provided with a multimedia RCA input port, and the housing is provided with a multimedia RCA controller corresponding to the multimedia RCA input port.

In a further embodiment, the control panel is provided with eight balanced output ports, and the shell is internally provided with eight balanced controllers corresponding to the eight balanced output ports.

In a further embodiment, the control panel is provided with a teleconferencing audio RCA output port.

In a further embodiment, a camera control port is provided on the control panel.

In a further embodiment, the control panel is provided with a central control interface.

Compared with the prior art, the utility model has the beneficial effects that:

the audio centralized controller can obtain good sound effect at low cost, avoids complex system connection, a 48V microphone interface of the audio centralized controller, greatly reduces cables while keeping the advantages of the 48V microphones, allows all microphones to be opened, can effectively inhibit howling, creatively adopts a star-link connection mode of the 48V microphones, avoids the problem that each microphone needs to be independently connected to a console in 48V microphone application, is very convenient to wire, and is convenient to construct, and the audio centralized controller replaces the functions of a feedback suppressor, a sound mixer, a hand-in-hand host, a sound mixing console and a sound box processor which are necessarily used in a complete sound amplifying system, thereby avoiding connection and debugging which are required to be completed by a professional engineer in system construction and greatly reducing system construction cost.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic diagram of a connection structure of each channel management control according to the present utility model;

FIG. 3 is a schematic diagram of the internal principle structure of the present utility model;

fig. 4 is a schematic diagram of a motherboard connecting structure according to the present utility model.

In the figure: 1. a hand-in-hand microphone input port; 2. a 48V microphone input port; 3. a two-way standard balance input port; 4. four paths of mixing balance input ports; 5. a teleconferencing audio RCA input; 6. a multimedia RCA input port; 7. eight balanced output ports; 8. a teleconference audio RCA output port; 9. a camera control port; 10. and a central control interface.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an audio centralized processor, a housing and an operation panel mounted on the housing, wherein the operation panel is provided with 10 input channels and 9 output channels, and is matched with necessary control interfaces such as USB, rs232, rs485, etc., and the audio centralized processor specifically comprises: a hand-in-hand microphone input port (serial microphone interface) 1, a 48V microphone input port (novel 48V microphone interface) 2, a two-way standard balance (cannon) input port 3, a four-way mixing balance (cannon) input port 4, a remote conference audio RCA input port 5, a multimedia RCA input port 6, an 8-way balance (cannon) output port 7, a remote conference audio RCA output port 8, a camera control port (rs 232, rs 485) 9 and a central control interface 10.

The shell is internally provided with an audio processing expander, a hand-in-hand microphone controller, a 48V microphone controller and a DSP digital processor, and is also provided with an input/output channel management control connected with each input channel and each output channel, such as: a two-road sign balance controller, a four-way mixing balance controller, a remote conference audio RCA controller, a multimedia RCA controller, an eight-way balance controller, a remote conference audio RCA controller and the like.

The hand-in-hand microphone controller manages the microphone connected with the interface, controls on/off of the microphone according to the function requirement, picks up corresponding voice signals, sends the voice signals to the later stage, carries out information intercommunication with the DSP digital processor, the 48V microphone controller manages the 48V microphone connected with the interface, controls on/off of the microphone according to the function requirement, picks up corresponding voice signals, sends the voice signals to the later stage, carries out information intercommunication with the DSP digital processor, simultaneously implants a sound mixer function in the manager, intelligently monitors the voice energy of each microphone, compares through a set value, selects the microphone voice signals in use as a main expansion channel, does attenuation processing with a non-main expansion channel, is favorable for feedback inhibition processing, and the DSP digital processor carries out digital processing on the signals sent by each channel according to the requirement, and has the main functions that: eliminating positive feedback of voice signals to obtain clear voice signals, removing remote echoes from voice signals sent by remote ports, performing noise reduction treatment on the whole signals, and managing and controlling information such as audio frequency, microphone address and the like of each channel of input/output channels by each channel management control (a two-way road sign balance controller, a four-way mixing balance controller, a remote conference audio RCA controller, a multimedia RCA controller, an eight-way balance controller, a remote conference audio RCA controller and the like)

The 48V microphone input port uses a connecting wire, through star/chain and audio processing expander hybrid connection, no matter how many microphones are used on site, the microphone only needs a main line connection to the console, this connecting wire adopts 8 heart yearns, be ground wire 2 respectively, power cord 2, management control line 2, audio signal line 2, gather and control 48V microphone signal after being connected with audio processing expander, do not limit to the quantity of opening of microphone, no matter how many microphones are opened, all can well control the howling, through novel 48V microphone interface, can keep the advantage of 48V microphone high fidelity, low noise, can avoid a large amount of cable laying's shortcoming, be different from hand-held microphone, each producer all has own communication control, the microphone of different producers can not be general, this kind of microphone that has formed the standard, the microphone of different producers can all be general, the proposal of novel 48V interface, the convenience of this type of microphone has been increased.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides an audio frequency centralized processor, includes the casing and installs the panel of controlling on the casing, its characterized in that: the portable electronic device is characterized by further comprising a hand-held microphone input port (1) and a 48V microphone input port (2) which are arranged on the control panel, wherein a hand-held microphone controller, a 48V microphone controller, a DSP digital processor and an audio processing expander are arranged in the shell, and the 48V microphone input port (2) is connected with the audio processing expander in a mixed mode through a star link by using a connecting wire.

2. The audio centralized processor of claim 1, wherein: the connecting wire used for the 48V microphone input port (2) adopts eight core wires, which are respectively two ground wires, two power wires, two management control wires and two audio signal wires, and the 48V microphone signals are collected and controlled after being connected with the audio processing expander.

3. The audio centralized processor of claim 1, wherein: the control panel is also provided with a two-standard balance input port (3), and a two-standard balance controller corresponding to the two-standard balance input port (3) is arranged in the shell.

4. The audio centralized processor of claim 1, wherein: the control panel is also provided with four-way mixing balance input ports (4), and a four-way mixing balance controller corresponding to the four-way mixing balance input ports (4) is arranged in the shell.

5. The audio centralized processor of claim 1, wherein: the control panel is also provided with a remote conference audio RCA input port (5), and a remote conference audio RCA controller corresponding to the remote conference audio RCA input port (5) is arranged in the shell.

6. The audio centralized processor of claim 1, wherein: the control panel is provided with a multimedia RCA input port (6), and a multimedia RCA controller corresponding to the multimedia RCA input port (6) is arranged in the shell.

7. The audio centralized processor of claim 1, wherein: eight paths of balance output ports (7) are arranged on the control panel, and eight paths of balance controllers corresponding to the eight paths of balance output ports (7) are arranged in the shell.

8. The audio centralized processor of claim 1, wherein: the control panel is provided with a remote conference audio RCA output port (8).

9. The audio centralized processor of claim 1, wherein: the control panel is provided with a camera control port (9).

10. The audio centralized processor of claim 1, wherein: the control panel is provided with a central control interface (10).