【作者】 马侠霖； 蔡铭；

【Author】 MA Xia-lin;CAI Ming;School of Engineering Sun Yat-sen University,Guangdong Provincial Key Laboratory of Intelligent Transportation System;

【机构】 中山大学工学院广东省智能交通系统重点实验室；

【摘要】 随着计算机性能与声卡技术的提高,虚拟音频信号分析仪解决传统硬件信号分析仪成本高及便携性差等问题,但目前的虚拟音频信号分析仪主要基于LabView平台设计完成,仍存在成本问题。基于C#语言与DirectSound API设计并实现一套音频信号分析仪软件,集音频数据采集、频谱分析和声级计功能,具有成本低、便携、扩展性强等优点。最后通过实验验证所设计虚拟分析仪的正确性,可作为音频信号分析仪与声级计使用。更多还原

【Abstract】 Along with the improvements of computer performance and soundcard technique,virtual audio analyzer solves the problems such as high cost and lack of portability which happen in traditional hardware analyzers.However,researches of existing virtual audio analyzers are most based on Lab View platform,which still cost highly.This paper introduces the design of an Audio Analyzer,which is based on C# program language and DirectSound API.The analyzer’s functions include audio acquisition,spectrum analysis and sound level meter,and its correctness is proved by verification experiment.更多还原