Low frequency characteristic parameters measurement of vented-box loudspeaker system using total least squares method |
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作者姓名: | Xu Boling Wei Yong |
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作者单位: | Xu Boling; Wei Yong(Institute of Acoustics,State Key Laboth ratory of Modern Acoustics,Nanjing University,Naning 210093) (Nanjing University of Posts and Telecommunications) |
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摘 要: | I.IntroductiollThecomputeraideddesign(CAD)techniqueisanadvancedmethodforthedesignofvented-boxloudspeakersystemsI1l,whichisbasedontheThiele-Sma.llparametersofloudspeakersIa]andthefowfrequencycharpeteristicparametersofvelltedboxloudspeakersystems.TheThiele-Smallparametersofloudspeakersandsomeofthelowfrequellcycharacteristicparametersofvellted-boxloudspeakersystemshavebeendeterIIilnedbyfrequencyUomainmeth.dI3'4]foralongtime.Themaindisadwtagesofthismethodarecomplicatedandtimeconsuming.TheThi…
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Low frequency characteristic parameters measurement of vented-box loudspeaker system using total least squares method |
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Authors: | Xu Boling Wei Yong |
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Abstract: | The interrelationship between the ARMA model parameters of a vented-box loud-speaker system and lowthequency characteristic parameters is analysed in this paper. These AANA model parameters are deterndned by the total least squares (TLS) method. Therefore, we can measure in the timedomain the fow frequency characteristic parameters of a vented-box loudspeaker system, its impendance curvs and low-frquency response curves. These measured results show a satisfactory agreement with the values obtained by the frequency-domain measurement. |
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Keywords: | ARMA model Total least squares method Low frequency parameter Timedomain Measurement |
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