摘要
探究了数字车载音响系统的软硬件设计要点,并设计实验测定系统性能。该系统采用STC12C56单片机作为主控芯片,包含音频播放、收音、音效处理等功能,支持断电记忆和数字滤波。从测试效果来看,该系统在零下40℃范围内均能正常运行,低温适应能力强;各个频段的输出信号波形稳定,无噪音信号混杂,收音效果较好。
This paper probes into the key points of software and hardware design of digital vehicle audio system,and designs experiments to measure the system performance.The system uses STC12C56 single chip microcomputer as the main control chip,including audio playback,radio,sound processing and other functions,support power off memory and digital filtering.From the test results,the system can operate normally in the range of minus 40℃,and has strong adaptability to low temperature.The output signal waveform of each frequency band is stable,no noise signal is mixed,and the radio effect is good.
作者
张松竹
Zhang Songzhu(Zhangpu County Committee Office of the Communist Party of China,Zhangzhou,China)
出处
《科学技术创新》
2025年第17期79-82,共4页
Scientific and Technological Innovation
关键词
数字车载音响
音频播放器
算术平均滤波法
收音性能
digital car audio
audio player
arithmetic average filtering method
radio performance
