CN215647210U - Conference sound interconnection system - Google Patents

Abstract

The utility model discloses a conference sound interconnection system, and relates to the technical field of sound box systems. The conference sound box comprises two or more conference sound boxes which are interconnected through wires, wherein each conference sound box comprises a shell and a main control board positioned in the shell; the main control board comprises a processor module, and an audio input module and an audio output module which are connected with the processor module, wherein the audio input module comprises an input interface, the audio output module comprises an output interface, the input interface or the output interface can be used for wired connection among a plurality of sound devices and audio transmission, and the processor module comprises a noise reduction unit. The conference sound interconnection system has stable signal transmission, realizes remote omnibearing hands-free clear conversation of a single-machine multi-person conference, can reasonably adjust the volume of a single conference sound, can meet the requirements of listeners at different positions on the volume, ensures that the voice of a speaker can be heard by the persons on the scene, and has the function of noise reduction; the real-time clear talkback can be achieved, and the conference efficiency and the use experience of the user are improved.

Description

Conference sound interconnection system

Technical Field

The utility model belongs to the technical field of sound box systems, and particularly relates to a conference sound interconnection system.

Background

The sound system is a set of equipment capable of reproducing and playing audio signals, a conference room must have good speech definition due to the specificity of functions of the conference room, and a good acoustic environment must be provided besides good sound equipment. Because each person in the conference room has different distances from the sound, the person is close to the sound, the sound is heard too much, and the person is easy to be irritated and even the eardrum is damaged; the far-distance sound equipment can cause the long-distance call of the single-machine multi-person conference to be fuzzy due to too small sound and unclear listening, and the mood of listeners is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of the existing conference sound system, and provides a conference sound interconnection system which has the advantages that the remote clear call of a single-machine multi-person conference can be realized, the volume can be reasonably adjusted, the requirements of listeners at different positions on the volume can be met, the voices of speakers can be heard by the speakers, the noise reduction function is realized, and the omnibearing hands-free noise reduction call can be realized.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

a conference sound interconnection system comprises two or more conference sounds which are interconnected through wires, wherein each conference sound comprises a shell and a main control board positioned in the shell; the main control board comprises a processor module, and an audio input module and an audio output module which are connected with the processor module, wherein the audio input module comprises an input interface, the audio output module comprises an output interface, the input interface or the output interface can be used for wired connection among a plurality of sound devices and audio transmission, and the processor module comprises a noise reduction unit.

Preferably, the audio input module further comprises a microphone, the audio output module further comprises a speaker, and the signal received by the input interface is output through the speaker; signals input by the microphone are subjected to mixing processing, an A/D conversion circuit, filtering processing and a D/A conversion circuit in sequence by the noise reduction unit, then are subjected to differential amplification and are output by the audio output module.

Preferably, the processor module comprises a DSP chip.

Preferably, the processor module is further connected with a bluetooth module.

Preferably, the input interface and the output interface are USB interfaces or type-c interfaces.

Preferably, the input interfaces are located on the side wall of the housing, and the number of the output interfaces is two or more.

Preferably, a display screen and a control key connected with the main control board are embedded in the shell; and a storage battery connected with the main control board is fixed in the shell.

Preferably, the casing includes epitheca and inferior valve, be equipped with the baffle that separates that is used for fixed main control board in the casing, the main control board is fixed in and separates between baffle and the inferior valve, it is equipped with the opening that holds the speaker on the baffle to separate.

Preferably, the number of the microphones is four, and the microphones are uniformly distributed around the circumferential direction of the shell; and a plurality of sound raising holes are formed in the position, corresponding to the loudspeaker, of the shell.

Preferably, the shell is of a round flat structure; the bottom surface of casing is equipped with the slipmat, the slipmat is the silica gel material.

Compared with the prior art, the utility model has the beneficial effects that: the conference sound interconnection system comprises two or more conference sounds which are interconnected through wires, wherein each conference sound comprises a shell and a main control board positioned in the shell; the main control board comprises a processor module, and an audio input module and an audio output module which are connected with the processor module, wherein the audio input module comprises an input interface, the audio output module comprises an output interface, the input interface or the output interface can be used for wired connection among a plurality of sound devices and audio transmission, and the processor module comprises a noise reduction unit. The conference sound interconnection system has stable signal transmission through the plurality of wired conference sounds, realizes remote omnibearing hands-free clear conversation of a single-machine multi-person conference, can reasonably adjust the volume of a single conference sound, can meet the requirements of listeners at different positions on the volume, ensures that the voice of a speaker can be heard by the persons on the scene, and has a noise reduction function; the effects of real-time clear talkback and high-precision information transmission identification can be achieved by noise reduction, and the conference efficiency and the use experience of users are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a structural diagram of a conference audio in an embodiment of the present invention;

fig. 2 is an exploded schematic view of conference audio in an embodiment of the present invention;

fig. 3 is a schematic diagram of a conference audio interconnection system according to an embodiment of the present invention;

FIG. 4 is a circuit diagram of a DSP chip according to an embodiment of the present invention;

in the figure: 1 is the epitheca, 2 is the baffle, 3 is the main control board, 4 is the inferior valve, 5 is the slipmat, 6 is the microphone, 7 is input interface, 8 is output interface, 9 is the display screen, 10 is the control key, 11 is the speaker, 12 is the opening, 13 is the battery, 14 is first meeting stereo set, 15 is the second meeting stereo set, 16 is the third meeting stereo set, 17 is projection equipment, 18 is the sound-raising hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.

In the description of the present application, it is to be understood that the terms "intermediate," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus should not be construed as limiting the present application. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In addition, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example (b): referring to fig. 1-4, the present embodiment mainly aims at that the sound heard by the existing conference room is different in distance from each person, which results in the situation that the sound is close to the sound, the sound heard is too large, which is easy to make people feel irritated, and even the eardrum is damaged; the conference sound interconnection system is provided, as shown in fig. 3, and comprises two or more conference sounds interconnected by wires; in this embodiment, the number of the conference sounds is three, which are the first conference sound 14, the second conference sound 15, and the third conference sound 16, but of course, the number of the conference sounds may be more than three; the first conference sound 14, the second conference sound 15 and the third conference sound 16 are connected in a wired manner and transmit audio information; specifically, the first conference sound 14 receives audio information from the projection device 17 or the terminal host device, and transmits the audio signal to the second conference sound 15 and the third conference sound 16 in a wired manner, in this embodiment, the first conference sound 14 is shorter than the projection device 17 or the terminal host device; through the connection mode, signal transmission is stable, and the conference sound at different positions corresponds to the positions of different users, so that remote omnibearing hands-free clear conversation of a single-machine multi-person conference is realized.

As shown in fig. 1 and 2, the conference audio includes a casing and a main control board 3 located inside the casing; the main control board 3 comprises a processor module, and an audio input module and an audio output module which are connected with the processor module, wherein the audio input module comprises an input interface 7, the audio output module comprises an output interface 8, the input interface 7 or the output interface 8 can be used for wired connection among a plurality of sound devices and audio transmission, the conference sound devices can be charged through the input interface 7, and the input interface 7 and the output interface can be multiple.

Specifically, the audio input module further includes a microphone 6, the audio output module further includes a speaker 11, and a signal received by the input interface 7 is output through the speaker 11; further, the processor module comprises a noise reduction unit. In this embodiment, the noise reduction unit sequentially performs mixing processing, a/D conversion circuit, filtering processing, and a D/a conversion circuit on the audio signals, performs differential amplification, outputs the audio signals through the audio output module, and transmits the noise-reduced audio signals to a plurality of conference sounds in a wired manner.

Specifically, the input interface 7 is located on a side wall of the housing, the number of the output interfaces 8 is two or more, the input interface 7 and the output interface 8 are USB interfaces or type-c interfaces, in this embodiment, both the input interface 7 and the output interface 8 are type-c interfaces, the first conference sound 14 is connected with the projection device 17 through a first data line, one end of the first data line is a USB interface, the other end of the first data line is a type-c interface, and an audio signal on the projection device 17 is transmitted to the first conference sound 14 through the first data line; the first conference sound 14 is connected with the projection device 17 through a second data line, both ends of the second data line are type-c interfaces, and the audio signal received by the first conference sound 14 is transmitted to the second conference sound 15 and/or the third conference sound 16 through the second data line; finally, the audio signal of the projection device 17 is transmitted to the conference sounds through the first data line and the second data line for output. Of course, in another embodiment, the input interface 7 may be a type-c interface, and the output interface 8 may be a USB interface.

Specifically, in this embodiment, the processor module includes a DSP chip and a peripheral circuit thereof, and the DSP chip has the advantages of good stability, high precision, high speed performance, and the like; further, processor module includes the bluetooth unit, and meeting stereo set accessible bluetooth unit carries out wireless connection with projection equipment 17 or terminal host computer equipment to audio signal with projection equipment 17 or terminal host computer equipment transmits through wireless connection's mode, but wireless connection has the limitation, compares wireless connection simultaneously, and wired connection signal transmission is more stable, realizes the long-range clear conversation of many personnel's of unit meeting simultaneously.

Specifically, a display screen 9 and a control key 10 connected with the main control board 3 are embedded in the shell; the control keys 10 comprise volume keys, microphone keys and speaker keys, a user can turn on or turn off the speaker through the speaker keys or adjust the volume played by the speaker through the volume keys according to requirements, voice communication can also be carried out by turning on the microphone keys, and audio information received by the microphone is subjected to noise reduction through the noise reduction unit and then is transmitted to other one or more conference sounds through a data line; in this embodiment, the main control panel 3 is connected with a display screen 9, and some information such as the state of the key switch, the time and the electric quantity can be displayed through the display screen 9. Furthermore, a storage battery 13 connected with the main control board 3 is fixed in the shell, and the storage battery 13 is charged and stored through the input interface 7, so that the purpose of portability is achieved; in this embodiment, the number of input interfaces 7 is at least two, and charging and audio transmission can be performed simultaneously.

Specifically, as shown in fig. 2, the shell is a round flat structure, the overall structure is designed to be round and smooth, and the hand feeling is good when the portable electric toothbrush is carried; the casing includes epitheca 1 and inferior valve 4, and display screen 9 is fixed in the surface of the 1 body of epitheca, and in this embodiment, offer the recess that is used for holding display screen 9 on the 1 body of epitheca. Be equipped with in the casing and be used for fixed main control board 3 at a distance from baffle 2, it is circular platelike structure to separate baffle 2, main control board 3 is fixed in through the screw between baffle 2 and inferior valve 4, be equipped with the opening 12 that holds speaker 11 on separating baffle 2, speaker 11 is circular loudspeaker, speaker 11's outer wall and speaker 11's opening 12 looks adaptation, the position that corresponds speaker 11 on the casing is equipped with a plurality of raise sound holes 18, in order to reach the effect of clear broadcast, it separates mutually between main control board 3 and the raise sound hole 18 to separate baffle 2, main control board 3 has been avoided receiving corruption or damage with external direct contact. In this embodiment, the main control panel 3 is a circular plate, the number of the microphones 6 is four or more, and the microphones 6 are uniformly distributed along the periphery of the main control panel 3 and communicated with the outside along the side wall of the casing, so that the omnidirectional 360-degree hands-free clear conversation is facilitated.

Specifically, the bottom surface of casing is equipped with slipmat 5, and in this embodiment, slipmat 5 is loop configuration and is the silica gel material, makes the stereo set wholly place steadily.

The conference sound interconnection system comprises two or more conference sounds which are interconnected through a data line, wherein each conference sound comprises a shell and a main control board 3 positioned in the shell; the main control board 3 comprises a processor module, an audio input module and an audio output module, wherein the audio input module and the audio output module are connected with the processor module, the audio input module comprises an input interface 7, the audio output module comprises an output interface 8, the input interface 7 or the output interface 8 can be used for wired connection among a plurality of sound boxes and audio transmission, and the processor module comprises a noise reduction unit. The conference sound interconnection system realizes remote omnibearing hands-free clear conversation of a single-machine multi-person conference by a plurality of wired conference sounds, can reasonably adjust the volume of a single conference sound, can meet the requirements of listeners at different positions on the volume, enables the voices of speakers to be heard by the persons on the scene, and has the function of noise reduction; the effects of real-time clear talkback and high-precision information transmission identification can be achieved by noise reduction, and the conference efficiency and the use experience of users are improved.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The conference sound interconnection system is characterized by comprising two or more conference sounds which are interconnected through wires, wherein each conference sound comprises a shell and a main control board positioned in the shell; the main control board comprises a processor module, and an audio input module and an audio output module which are connected with the processor module, wherein the audio input module comprises an input interface, the audio output module comprises an output interface, the input interface or the output interface can be used for wired connection among a plurality of sound devices and audio transmission, and the processor module comprises a noise reduction unit.

2. The conference sound interconnection system according to claim 1, wherein the audio input module further comprises a microphone, the audio output module further comprises a speaker, and the signal received by the input interface is output through the speaker; signals input by the microphone are subjected to mixing processing, an A/D conversion circuit, filtering processing and a D/A conversion circuit in sequence by the noise reduction unit, then are subjected to differential amplification and are output by the audio output module.

3. The conference sound interconnection system of claim 2, wherein the processor module comprises a DSP chip.

4. The conference audio interconnection system of claim 2, wherein the processor module is further connected to a bluetooth unit.

5. The conference audio interconnection system according to claim 1, wherein the input interface and the output interface are USB interfaces or type-c interfaces.

6. The conference sound interconnection system according to claim 5, wherein the input interface is located on a side wall of the housing, and the number of the output interfaces is two or more.

7. The conference audio interconnection system according to claim 2, wherein a display screen and control keys connected to the main control board are embedded in the housing; and a storage battery connected with the main control board is fixed in the shell.

8. The conference sound interconnection system according to claim 2, wherein the housing includes an upper shell and a lower shell, a baffle plate for fixing the main control board is provided in the housing, the main control board is fixed between the baffle plate and the lower shell, and an opening for accommodating the speaker is provided on the baffle plate.

9. The conference sound interconnection system according to claim 2, wherein the number of the microphones is four, and the microphones are uniformly distributed around the circumferential direction of the housing; and a plurality of sound raising holes are formed in the position, corresponding to the loudspeaker, of the shell.

10. The conference sound interconnection system according to claim 1, wherein the housing has a circular flat structure; the bottom surface of casing is equipped with the slipmat, the slipmat is the silica gel material.

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