An in-vehicle communication apparatus and method for audio adapter

The present invention discloses a vehicle communication device and a method of switching audio, the apparatus comprising a signal processing unit, and noise reduction filtering unit switch; signal processing unit comprises a FPGA, DSP digital signal processors, the AD conversion and DA conversion module module, synchronous serial communication device via the signal processing unit FPGA, the communication device transmits a signal to the FPGA via a synchronous serial interface; FPGA connected to the AD converter and the DA converter module digital signal processor DSP module, respectively; filter unit includes an audio circuit module, the signal processing unit in the DA converter module and the AD conversion module is connected via the MIC terminal PHONE end audio earphone circuit module; noise switch connected in a digital signal processor DSP. The method of the present invention having enhanced inhibition of a communication device to transmit an audio headset for noise and interference, has the advantage of being able to improve the audio quality.