CN219659894U - Conference sound system - Google Patents
Conference sound system Download PDFInfo
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- CN219659894U CN219659894U CN202321337469.5U CN202321337469U CN219659894U CN 219659894 U CN219659894 U CN 219659894U CN 202321337469 U CN202321337469 U CN 202321337469U CN 219659894 U CN219659894 U CN 219659894U
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Abstract
The utility model relates to the technical field of electroacoustic, in particular to a conference sound box system, which comprises a central control module, a microphone and a loudspeaker, wherein the central control module is used for connecting and controlling all equipment in the system; each microphone is respectively and electrically connected with the central control module, and is used for receiving human voice, converting the human voice into an electric signal and transmitting the electric signal to the central control module; the loudspeaker comprises loudspeakers and a sound processing module, wherein each loudspeaker faces different sound field coverage areas respectively, and the sound processing module is used for converting the electric signals transmitted by the central control module into analog signals and outputting sound through the loudspeakers; by arranging a plurality of loudspeakers, the sound field coverage range is improved, and a plurality of loudspeakers are arranged in a single loudspeaker, so that the sound field coverage range is enlarged and the sound field uniformity can be maintained; each loudspeaker in the loudspeaker faces different sound field coverage areas respectively, so that sound emitted by each loudspeaker can point to different sound field coverage areas, and the playing effect of the loudspeaker is improved while the sound field coverage area is improved.
Description
Technical Field
The utility model relates to the technical field of electroacoustic, in particular to a conference sound system.
Background
At present, a plurality of conventional conference systems need professional personnel to carry out operation management, and a sound controller needs to be equipped on site to operate equipment so as to prevent microphone howling and the like, which is an application mode of the conventional conference systems, and a great deal of labor is required for installation and debugging; meanwhile, because different people speak different in size, the proper volume is required to be controlled manually.
In order to solve the problems, a conference system adopting a hand-in-hand connection mode is adopted at present, and the system is also called a desktop conference sound amplifying system; international advanced conference systems employ multiplexing technology to transmit multiplexed audio signals to a conference system host through one cable, and finally mix audio at the conference system host. Such conference system hosts also typically have external audio input interfaces for wireless microphone or other audio source signal input. Currently, conference systems on the market generally only support to simultaneously start 3-8 microphones, and all sounds are mixed and output after the microphones are started; the traditional mixed output mode causes great difficulty in tuning, and after the optimal feedback inhibition effect is usually adjusted for one microphone, the feedback inhibition cannot be adjusted to a good effect when the other microphone is started.
Therefore, chinese patent CN214960095U discloses a multi-channel audio output conference system, the conference system adopts a full digital transmission mode, supports to simultaneously open up to 128 microphones, each microphone can output audio separately, each host can output 16 microphone signals, up to 128 hosts can be cascaded, the same signal can be supported to be output on any host, the system independently outputs the sound of each microphone, and independently adjusts, effectively solves the problem that feedback inhibition of multiple microphones is difficult to adjust, wherein the volume of the audio is identified by a volume identification module, the identified result is fed back to a controller, the controller is used for identifying information and comparing the information with a standard value, and then the speaker is adjusted according to the compared result, so as to avoid inconvenient use caused by overlarge or undersize volume; the system has the defect that in the system, the sound of each microphone is independently output through a conventional sound box, and the sound box is often simply erected at one corner of a conference room, so that the output sound has the problems of small coverage range and uneven sound field.
Disclosure of Invention
The utility model provides a conference sound box system, which aims to solve the problems of small coverage area and uneven sound field generated during sound output in the prior art.
A conference sound system comprises a central control module, a plurality of microphones and a plurality of speakers,
the central control module is used for connecting and controlling all devices in the system;
each microphone is respectively and electrically connected with the central control module, and is used for receiving human voice and converting the human voice into an electric signal, and then transmitting the electric signal to the central control module;
each loudspeaker is electrically connected with the central control module respectively, and is used for converting the electric signals transmitted by the central control module into analog signals and outputting the analog signals in a sound form;
the loudspeaker comprises a plurality of loudspeakers and a sound processing module, wherein each loudspeaker is respectively and electrically connected with the sound processing module, each loudspeaker faces different sound field coverage areas, the sound processing module is electrically connected with the central control module, and is used for converting the electric signals transmitted by the central control module into analog signals and outputting sound through the loudspeakers.
The method has the advantages and beneficial effects that: by arranging a plurality of loudspeakers, the sound field coverage range is improved, and a plurality of loudspeakers are arranged in a single loudspeaker, so that the sound field coverage range is enlarged and the sound field uniformity can be maintained; meanwhile, each loudspeaker in the loudspeaker faces different sound field coverage areas respectively, so that sound emitted by each loudspeaker can point to different sound field coverage areas, and the playing effect of the loudspeaker is improved while the sound field coverage area is improved.
Preferably, the loudspeaker comprises a plurality of tweeters and a plurality of mid-woofers, each tweeter and each mid-woofer are electrically connected with the sound processing module, each tweeter and each mid-woofer are coaxially arranged in an array, and each tweeter and each mid-woofer are respectively directed to different sound field coverage areas. Through setting up tweeter and well woofer like this, improve the broadcast effect of speaker, every tweeter and well woofer are coaxial array formula and arrange simultaneously, and point to different sound field coverage areas respectively, consequently can be further enlarged sound field coverage, better keep the sound field even.
Preferably, the central control module includes an automatic mixer, the automatic mixer is electrically connected with each sound processing module and each microphone, the automatic mixer is used for automatically mixing each electric signal transmitted by each microphone to form an automatic mixing result electric signal, the automatic mixing result electric signal is transmitted to each sound processing module, and the sound processing module is used for converting the automatic mixing result electric signal into the analog signal and outputting sound through the loudspeaker. By setting the automatic mixer, the received electric signals of the microphones are subjected to automatic mixing processing, so that the circuits among the microphones are not mutually interfered and are not in crosstalk, and the playing effect of sound is improved.
Preferably, the central control module further includes a digital feedback suppressor, the automatic sound mixer is electrically connected with each sound processing module through the digital feedback suppressor, the digital feedback suppressor is electrically connected with each sound processing module and the automatic sound mixer, the digital feedback suppressor is used for receiving the automatic sound mixing result electric signal, performing internal feedback suppression on the automatic sound mixing result electric signal to form a feedback electric signal, and then transmitting the feedback electric signal to each sound processing module, and the sound processing module is used for converting the feedback electric signal into the analog signal and outputting sound through the loudspeaker. The digital feedback suppressor is used for processing the electric signal of the automatic sound mixing result, the obtained feedback electric signal is good in transparency, analysis force and low-frequency shocking force of sound quality, and the playing effect of sound is improved.
Preferably, the wireless receiver is electrically connected with the central control module and is used for receiving wireless signals or transmitting the wireless signals to the central control module. By the arrangement, the wireless communication connection with external equipment or other equipment in the conference sound system can be realized through the wireless receiver, and the function of wireless communication is added.
Preferably, the microphone is a wireless microphone, the wireless microphone is in wireless connection with the wireless receiver, the wireless microphone is used for receiving human voice and converting the human voice into a radio signal, then the radio signal is transmitted to the wireless receiver, and the wireless receiver is used for receiving the radio signal and converting the radio signal into the electric signal and then transmitting the electric signal to the central control module. By the arrangement, the wireless microphone saves the use of cables compared with the limited microphone in the prior art, so that the conference sound system is more reasonable, simple and attractive in layout.
Preferably, the system further comprises a central control screen, wherein the central control screen is electrically connected with the central control module. The arrangement is that the switch of the central control module can be directly controlled through the central control screen, so that the conference sound system can be operated under the unattended condition.
Drawings
FIG. 1 is a system block diagram of a conference sound system of the present utility model;
FIG. 2 is a schematic diagram of electrical connections of a conference sound system of the present utility model;
FIG. 3 is a schematic diagram of the distribution of tweeters and woofers of the present utility model;
FIG. 4 is a system block diagram of one embodiment of a conference sound system of the present utility model;
fig. 5 is a system block diagram of another embodiment of the conference sound system of the present utility model.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
1. a central control module; 2. a microphone; 3. a speaker; 4. a wireless receiver; 5. a central control screen; 101. an automatic mixer; 102. a digital feedback suppressor; 301. a horn; 302. a sound processing module; 3011. a tweeter; 3012. a mid-bass horn.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
The utility model provides a conference sound box system, which is shown in the combination of fig. 1 and fig. 2, so as to solve the problems of small coverage range and uneven sound field generated during sound output in the prior art.
A conference sound system comprises a central control module 1, a plurality of microphones 2 and a plurality of speakers 3,
the central control module 1 is used for connecting and controlling all devices in the system;
each microphone 2 is respectively and electrically connected with the central control module 1, and the microphones 2 are used for receiving human voice and converting the human voice into electric signals and then transmitting the electric signals to the central control module 1;
each loudspeaker 3 is electrically connected with the central control module 1, and the loudspeakers 3 are used for converting the electric signals transmitted by the central control module 1 into analog signals and outputting the analog signals in a sound form;
the loudspeaker 3 comprises a plurality of loudspeakers 301 and a sound processing module 302, wherein each loudspeaker 301 is electrically connected with the sound processing module 302, each loudspeaker 301 faces different sound field coverage areas, the sound processing module 302 is electrically connected with the central control module 1, and is used for converting an electric signal transmitted by the central control module 1 into an analog signal and outputting sound through the loudspeakers 301.
Specifically, by arranging a plurality of speakers 3, the sound field coverage area is improved, and a plurality of speakers 301 are arranged in a single speaker 3, so that the sound field coverage area is enlarged and the sound field can be kept uniform; meanwhile, each loudspeaker 301 in the loudspeaker 3 faces different sound field coverage areas respectively, so that sound emitted by each loudspeaker 301 can point to different sound field coverage areas, and the playing effect of the loudspeaker 3 is improved while the sound field coverage area is improved.
Referring to fig. 3, in a preferred embodiment of the present utility model, the loudspeaker 301 includes a plurality of tweeters 3011 and a plurality of mid-woofers 3012, each tweeter 3011 and each mid-woofer 3012 are electrically connected to the sound processing module 302, each tweeter 3011 and each mid-woofer 3012 are coaxially arranged in an array, and each tweeter 3011 and each mid-woofer 3012 are respectively directed to a different sound field coverage area.
Specifically, through setting up tweeter 3011 and well woofer 3012, improve the broadcast effect of speaker 3, every tweeter 3011 and well woofer 3012 are coaxial array arrangement simultaneously, and point to different sound field coverage areas respectively, so can be further enlarged the sound field coverage, better keep the sound field even.
Referring to fig. 4, in a preferred embodiment of the present utility model, the central control module 1 includes an automatic mixer 101, the automatic mixer 101 is electrically connected to each sound processing module 302 and each microphone 2, the automatic mixer 101 is configured to perform automatic mixing on each electrical signal transmitted by each microphone 2, so as to form an automatic mixing result electrical signal, and transmit the automatic mixing result electrical signal to each sound processing module 302, and the sound processing module 302 is configured to convert the automatic mixing result electrical signal into an analog signal, and output sound through the loudspeaker 301.
Specifically, by setting the automatic mixer 101, the received electric signals of the microphones 2 are subjected to automatic mixing, so that the circuits of the microphones 2 are not mutually interfered and are not in crosstalk, and the playing effect of sound is improved.
Referring to fig. 5, to further optimize the above scheme, the central control module 1 further includes a digital feedback suppressor 102, where the automatic mixer 101 is electrically connected to each of the sound processing modules 302 through the digital feedback suppressor 102, the digital feedback suppressor 102 is electrically connected to each of the sound processing modules 302 and the automatic mixer 101, and the digital feedback suppressor 102 is configured to receive the electric signal of the automatic mixing result and perform internal feedback suppression on the electric signal of the automatic mixing result to form a feedback electric signal, and then transmit the feedback electric signal to each of the sound processing modules 302, where the sound processing modules 302 are configured to convert the feedback electric signal into an analog signal, and output sound through the loudspeaker 301.
Specifically, the digital feedback suppressor 102 processes the electric signal of the automatic sound mixing result, the obtained feedback electric signal is better in terms of transparency, analytic force and low-frequency shocking force of sound quality, and the playing effect of sound is improved, and the digital feedback suppressor 102 preferably adopts a high-precision floating point type DSP processor, is a feedback suppressor for identifying the first voiceprint in the world, has the minimum damage to human voice by the voiceprint identification method, can theoretically achieve zero damage, namely zero distortion, and can achieve zero feedback theoretically as long as the identification rate of voiceprint identification is high enough.
Referring to fig. 2, in a preferred embodiment of the present utility model, a wireless receiver 4 is further included, where the wireless receiver 4 is electrically connected to the central control module 1, and is configured to receive a wireless signal or transmit a wireless signal to the central control module 1.
Specifically, the wireless receiver 4 can realize wireless connection with external equipment or wireless communication connection with other equipment in the conference sound system, and the function of wireless communication is added.
In order to further optimize the above scheme, the microphone 2 is a wireless microphone 2, the wireless microphone 2 is wirelessly connected with the wireless receiver 4, the wireless microphone 2 is used for receiving human voice and converting the human voice into a radio signal, then the radio signal is transmitted to the wireless receiver 4, and the wireless receiver 4 is used for receiving the radio signal and converting the radio signal into an electric signal and then transmitting the electric signal to the central control module 1.
In particular, the wireless microphone 2 saves the use of cables compared with the limited microphone 2 in the prior art, so that the conference sound system is more reasonable, simple and attractive in layout.
Referring to fig. 2, in a preferred embodiment of the present utility model, a central control panel 5 is further included, and the central control panel 5 is electrically connected to the central control module 1.
Specifically, the switch of the central control module 1 can be directly controlled through the central control screen 5, so that the conference sound system can be operated under the unattended condition.
The central control module 1 is a cabinet, all equipment and modules are arranged in the cabinet, 2 ADM8S (at most supporting 24 paths of microphone 2 input) are arranged in the cabinet, 1 digital feedback inhibitor 102,1 two-channel digital power amplifier are arranged in the cabinet, an input interface of the digital power amplifier is provided with a LINK channel, 1 power supply time sequence machine and 1 Internet of things central control edge computer host, wherein a central control screen 5 is An Zhuobing with the size of 10.1 inches, external central control panel control is provided, the central control screen 5 can control a time sequence power supply one-way switch and a full switch, and can control the total volume of an automatic mixer 101, a mute switch and a sound mixing switch function, wherein the number of speakers 3 is 2, the speakers 3 are coaxial directional sound boxes, 20 wireless microphones 2 and 1 8 switches, and the installation mode and connection relation of the digital power amplifier are shown in combination with fig. 2.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. A conference sound system is characterized by comprising a central control module (1), a plurality of microphones (2) and a plurality of speakers (3),
the central control module (1) is used for connecting and controlling all equipment in the system;
each microphone (2) is electrically connected with the central control module (1) respectively, and each microphone (2) is used for receiving human voice and converting the human voice into an electric signal, and then transmitting the electric signal to the central control module (1);
each loudspeaker (3) is electrically connected with the central control module (1) respectively, and the loudspeakers (3) are used for converting the electric signals transmitted by the central control module (1) into analog signals and outputting the analog signals in a sound form;
the loudspeaker (3) comprises a plurality of loudspeakers (301) and a sound processing module (302), wherein each loudspeaker (301) is electrically connected with the sound processing module (302) respectively, each loudspeaker (301) faces different sound field coverage areas respectively, the sound processing module (302) is electrically connected with the central control module (1) and is used for converting the electric signals transmitted by the central control module (1) into analog signals and outputting sound through the loudspeakers (301).
2. The conference sound system of claim 1, wherein the speakers (301) include a plurality of tweeters (3011) and a plurality of mid-woofers (3012), each tweeter (3011) and each mid-woofer (3012) are electrically connected to the sound processing module (302), each tweeter (3011) and each mid-woofer (3012) are arranged in a coaxial array, and each tweeter (3011) and each mid-woofer (3012) are respectively directed toward a different sound field coverage area.
3. Conference sound system according to claim 1, characterized in that the central control module (1) comprises an automatic mixer (101), the automatic mixer (101) is electrically connected to each of the sound processing modules (302) and each of the microphones (2), respectively, the automatic mixer (101) is configured to perform automatic mixing on each of the electrical signals transmitted by each of the microphones (2) to form an automatic mixing result electrical signal, and transmit the automatic mixing result electrical signal to each of the sound processing modules (302), and the sound processing modules (302) are configured to convert the automatic mixing result electrical signal into the analog signal, and output sound through the loudspeaker (301).
4. A conference sound system according to claim 3, wherein said central control module (1) further comprises a digital feedback suppressor (102), said automatic sound mixer (101) is electrically connected to each of said sound processing modules (302) through said digital feedback suppressor (102), said digital feedback suppressor (102) is electrically connected to each of said sound processing modules (302) and said automatic sound mixer (101), respectively, said digital feedback suppressor (102) is configured to receive said automatic sound mixing result electric signal and perform internal feedback suppression on said automatic sound mixing result electric signal to form a feedback electric signal, and then transmit said feedback electric signal to each of said sound processing modules (302), said sound processing modules (302) are configured to convert said feedback electric signal into said analog signal, and output sound through said speaker (301).
5. Conference sound system according to claim 1, characterized in that it further comprises a wireless receiver (4), said wireless receiver (4) being electrically connected to said central control module (1) for receiving wireless signals or transmitting said wireless signals to said central control module (1).
6. Conference sound system according to claim 5, characterized in that the microphone (2) is a wireless microphone, which is in wireless connection with the wireless receiver (4), which wireless microphone is adapted to receive human voice and convert it into a radio signal, which radio signal is then transmitted to the wireless receiver (4), which wireless receiver (4) is adapted to receive the radio signal and convert it into the electrical signal, which is then transmitted to the central control module (1).
7. Conference sound system according to claim 1, characterized in that it further comprises a central control screen (5), said central control screen (5) being electrically connected to said central control module (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321337469.5U CN219659894U (en) | 2023-05-30 | 2023-05-30 | Conference sound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321337469.5U CN219659894U (en) | 2023-05-30 | 2023-05-30 | Conference sound system |
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| Publication Number | Publication Date |
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| CN219659894U true CN219659894U (en) | 2023-09-08 |
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| CN202321337469.5U Active CN219659894U (en) | 2023-05-30 | 2023-05-30 | Conference sound system |
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- 2023-05-30 CN CN202321337469.5U patent/CN219659894U/en active Active
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