In this paper, the application of bluetooth in vehicle hands free system was described, then the hardware and software structure of system had been designed. Finally, selection about electron parts and chip of electro...In this paper, the application of bluetooth in vehicle hands free system was described, then the hardware and software structure of system had been designed. Finally, selection about electron parts and chip of electronic equipments was presented in detail.展开更多
目的:为解决强噪声背景下近距离语音通信难题,设计一套硬件装置,解决语音信息采集、背景噪声滤除以及近距离传输等问题。方法:以STM32F303处理器为核心,通过集成音频接口(integrate interface of sound,IIS)音频总线连接音频录放模块,...目的:为解决强噪声背景下近距离语音通信难题,设计一套硬件装置,解决语音信息采集、背景噪声滤除以及近距离传输等问题。方法:以STM32F303处理器为核心,通过集成音频接口(integrate interface of sound,IIS)音频总线连接音频录放模块,对采集、接收到的语音信号进行处理,通过蓝牙实现近距离传输。结果:该硬件装置能够采集到语音信号,经音频转换后可实现蓝牙传输及外放,效果良好。结论:该装置能够采集语音信号、滤除背景噪声,实现近距离语音传输。展开更多
文摘In this paper, the application of bluetooth in vehicle hands free system was described, then the hardware and software structure of system had been designed. Finally, selection about electron parts and chip of electronic equipments was presented in detail.
文摘目的:为解决强噪声背景下近距离语音通信难题,设计一套硬件装置,解决语音信息采集、背景噪声滤除以及近距离传输等问题。方法:以STM32F303处理器为核心,通过集成音频接口(integrate interface of sound,IIS)音频总线连接音频录放模块,对采集、接收到的语音信号进行处理,通过蓝牙实现近距离传输。结果:该硬件装置能够采集到语音信号,经音频转换后可实现蓝牙传输及外放,效果良好。结论:该装置能够采集语音信号、滤除背景噪声,实现近距离语音传输。
