Hands-free call system

Abstract

The invention relates to a hands-free call system which comprises a singlechip microcomputer control module, a power supply module, a hands-free switching module, a sound effect processing module, a power amplification module, a volume detection module, a signal processing module, a loudspeaker adjustment module and a Bluetooth module, wherein the power supply module, the hands-free switching module, the sound effect processing module, the power amplification module, the volume detection module, the signal processing module, the loudspeaker adjustment module and the Bluetooth module are all connected with the singlechip microcomputer control module. The hands-free call system has the beneficial effects that due to the cooperative action of the volume detection module, the signal processing module and the loudspeaker adjustment module, the hands-free call system disclosed by the invention can automatically adjust the magnitude of an output volume according to the magnitude of environmental noise, and is more energy-saving; by the additional arrangement of the Bluetooth module, the hands-free call system can support Bluetooth communication; and meanwhile, a WIFI module is convenient for data transmission. During use, the hands-free call system can eliminate echo of an audio signal.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a hands-free communication system. Background technique [0002] Nowadays, in many occasions, communication devices have become an important choice for people to communicate with each other. Although mobile phones have become almost a must-have communication tool for everyone, fixed hands-free phones are still necessary communication devices at work and at home. . With the development of science and technology, people have put forward more requirements on fixed hands-free phones, and the existing fixed hands-free phones that can only carry out ordinary communication are far from being able to meet people's needs. The existing fixed hands-free phone cannot automatically adjust the output volume according to the size of the ambient noise when making a hands-free call, and the existing fixed hands-free phone cannot support Bluetooth communication. Contents of the invention ...

AI Technical Summary

Problems solved by technology

With the development of science and technology, people put forward more requirements for fixed hands-free phones. The existing fixed hands-free phones that can only carry out ordinary communication are far from meeting people's needs.

The existing fixed hands-free phone cannot automatically adjust the output volume according to the size of the ambient noise when making a hands-free call, and the existing fixed hands-free phone cannot support Bluetooth communication

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