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1、基于Smaart7多通路声学测量系统的电声系统调试与优化信息工程专业2010级信工(1)班麦文聪指导教师:蔡阳生摘要扩声系统作为一种信号实时放大系统,被广泛运用于各种文化场所。扩声系统设计搭建完成后,需要求其进行测量调试。随着电声领域的发展,电声测量工具由硬件仪器逐渐被测量软件所代替。本文运用声场测量软件Smaart7对所设计的测量系统的频谱、延时等进行测量。考虑声场环境的整体声学特性,设立了三个测量点。综合分析三个测量点所得到的数据,运用数字处理器对该系统进行调试优化,主要包括分频设置、延时调整、均衡补偿等。最后
2、,通过调试后的放音对比,发现运用Smaart7进行测量调试后,扩声系统性能有了明显的提升。关键词实时频谱;延时;分频;均衡补偿ABSTRACTAudiosystemasareal-timesignalamplificationsystem,iswidelyusedinavarietyofculturalvenues.Aftertheaudiosystemsetupcompletely,requestitbemeasuredanddebugging.Withthedevelopmentofacousticfield,
3、acousticmeasurementtoolsbythehardwareinstrumentisgraduallyreplacedbymeasurementsoftware.Inthispaper,weuseSmaart7tomeasurethespectrumanddelayofaudiosystem.Considertheoverallsoundfieldacousticcharacteristicsoftheenvironment,theestablishmentofthreemeasurementpoin
4、ts.Comprehensiveanalysisofthedataobtainedinthethreemeasurementpoints,theuseofdigitalprocessorsoptimizedfordebuggingthesystem,includingthecrossoversettings,delayadjustment,EQcompensation.Finally,throughthecontrastbeforeandafterdebugging,foundtheuseofSmaart7debu
5、gging,theaudiosystemperformancehasbeensignificantlyimproved.KEYWORDSReal-timespectrum;timedelay;frequencydivision;EQcompensationinsouthwestofZhejiangProvincialCommitteeoftheparty'sstruggle,developdemocraticUnitedFrontagainstJapan,establishedthearmedforcesandth
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