Intelligent conference system based on Bluetooth

Abstract

The invention relates to the field of intelligent control, and in particular to an intelligent conference system based on Bluetooth. The system is provided with a power amplifier circuit and an arraydigital microphone. The volume of the sound output by the loudspeaker is controlled by the power. The main purpose of the power amplifier circuit is to output a high-power signal. Therefore, the poweramplifier circuit is matched with the loudspeaker to solve the problem that the mobile phone loudspeaker is small in sound and cannot hear the sound of the opposite side clearly. Meanwhile, the arraydigital microphone is composed of a plurality of MEMS digital microphones which are arranged in an array mode, the 360-degree omnidirectional audio signal acquisition range is achieved, the sound source acquisition range is wide, and the problem that the microphone needs to be close to the microphone due to the fact that the pickup range of the microphone is small is solved. The system comprisesa DSP audio optimization circuit. The DSP audio optimization circuit has the effect of optimizing audio signals and can effectively eliminate echoes and environmental noise, that is, high noise and background noise are filtered out from an audio signal source, so that the call quality is remarkably improved, and meanwhile, the problem that environmental noise interference cannot be effectively suppressed during a call is solved.

Description

technical field [0001] The invention relates to the field of intelligent control, in particular to a bluetooth-based intelligent conference system. Background technique [0002] In order to meet the company's small conference room or meeting needs with mobile phones, there are currently many temporary conference calls, almost all of which directly turn on the speaker on the mobile phone for conference communication. There are several downsides to having a conference call directly with a mobile phone: [0003] 1. Due to the low power of the speaker of the mobile phone, the human ear needs to be close to the mobile phone to hear the other party's voice clearly. [0004] 2. The microphone of the person and the mobile phone needs to be very close, otherwise it will affect the other party's inability to hear what you are talking about. [0005] 3. Turn on the loudspeaker of the mobile phone to talk, which cannot effectively suppress the interference of environmental noise. Tha...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a bluetooth-based intelligent conference system, which aims to solve the problem that the speaker of the mobile phone cannot hear the other party's voice clearly and the microphone has a small pickup range and needs to be close to the microphone

[0007] The invention provides a bluetooth-based intelligent conference system, which solves the problem that environmental noise cannot be effectively suppressed during a call

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