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Meeting system based on array type microphones

A conference system and microphone technology, applied in transducer circuits, sensors, electrical components, etc., can solve the problems of short pickup distance, loud and quiet sound, and the effect of gooseneck microphone pickup, etc., to ensure quality. , to avoid the effect of loud and quiet sound

Active Publication Date: 2014-08-13
方图智能(深圳)科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] General gooseneck microphones are used in the meeting room, and because of the short pick-up distance of the gooseneck microphone, the speaker is in a posture close to the microphone for a long time during the meeting, which will cause physical discomfort to the participants, and if the speech When the speaking posture of the speaker changes, the sound pickup effect of the gooseneck microphone will decrease, and even cause the voice to fluctuate.

Method used

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  • Meeting system based on array type microphones
  • Meeting system based on array type microphones
  • Meeting system based on array type microphones

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 with figure 2 As shown, this example provides a conference system based on an array microphone, including: an array microphone 1, a switch control circuit 2, a loudspeaker 3, and a wireless controller 4. The switch control circuit 2 and the loudspeaker 3 are respectively connected with The microphone array 1 is connected, and the microphone array 1 is two or more microphones arranged in sequence on the conference table; the switch control circuit 2 includes a wireless receiving module; the wireless controller 4 includes an MCU single-chip, a first microphone, The second pickup and the wireless transmitting module, the wireless controller 4 is connected to the wireless receiving module of the switch control circuit 2 through the wireless transmitting module, the first pickup and the second pickup are respectively connected to the MCU single-chip microcomputer, the first The pickup is used to pick up the sound level at the location of the wireless controll...

Embodiment 2

[0041] On the basis of embodiment 1, after the switch control circuit 2 in this example receives the sound size and the comparison result, it adjusts the number of microphones on in real time until the number of microphones on can make the size of the sound picked up by the first pickup and the setting If the constant value matches, the number of microphones on is kept unchanged. Preferably, if the difference between the size of the sound picked up by the first pickup and the set value does not exceed 5db, it is determined to be consistent.

[0042] Because the speaker's posture will constantly change when speaking, and the volume of the speech will fluctuate according to emotions. Therefore, a certain fluctuation in the size of the sound picked up by the first pickup is normal and necessary; therefore, The difference between the size of the sound picked up by the first pickup and the set value is determined to be consistent within a certain sound pressure range, which meets the ...

Embodiment 3

[0046] Such as image 3 As shown, a further improvement of this example is that it also includes a distance sensor 5, which is arranged on the conference table directly in front of each participant, and the distance sensor 5 is used to detect the wireless controller 4 and the array microphone 1 The MCU single-chip microcomputer transmits the distance data detected by the distance sensor 5 to the switch control circuit 2 through the wireless transmitting module, and then controls the number of microphones to be turned on for the first time through a preset distance parameter.

[0047] MCU single-chip microcomputer as a computing controller, through the distance sensor 5 can detect the closest distance between the participant and the array microphone 1 of the conference desktop. The detection method is to place a distance sensor 5 in the corresponding microphone area directly in front of each participant. In other words, the distance sensor 5 is set on the conference table directly ...

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Abstract

The invention provides a meeting system based on array type microphones. The meeting system based on the array type microphones comprises the array type microphones, a switch control circuit, a loudspeaker and a wireless controller, wherein the switch control circuit and the loudspeaker are connected with the array type microphones; the array type microphones are more than two microphones arranged on a meeting table in sequence; the wireless controller comprises an MCU single-chip microcomputer, a first pickup, a second pickup and a wireless emitting module; the wireless controller is connected with the switch control circuit; the wireless controller judges whether a participant makes a statement or not through the second pickup until one participant makes a statement, and the volume of voice heard by the spokesman can be detected through the first pickup; the MCU single-chip microcomputer compares the volume of the voice with a set numerical value and sends the result to the switch control circuit. The meeting system based on the array type microphones achieves the pickup effect, the spokesman can make a statement easily, the voice is prevented from being too large or too small suddenly, and meanwhile the quality of output voice is ensured.

Description

Technical field [0001] The invention relates to a conference system, in particular to a conference system based on an array microphone. Background technique [0002] The general gooseneck microphone is used in the conference room. The short pickup distance of the gooseneck microphone causes the speaker to stay in a position close to the microphone for a long time during the meeting, which causes physical discomfort to the participants. When the speaker's speech posture changes, the sound pickup effect of the gooseneck microphone will decrease, and even cause the sound to become louder and smaller. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a conference system based on array microphones that does not limit the posture of the speaker, guarantees the output sound quality and avoids the sudden loudness of the sound. [0004] In this regard, the present invention provides a conference system based on an array microphone, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00H04R1/08
Inventor 许忠
Owner 方图智能(深圳)科技集团股份有限公司
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