計權聲級 的英文怎麼說
中文拼音 [jìquánshēngjí]
計權聲級
英文
weighted sound level-
An under estimation of the hearing effects by the low frequency noise could be happened. that is to say, even if the a - weight sound level is small, the low frequency noise may annoy to listener by the different ways from the high frequency noise. so it is necessary to understand psychoacoustics in order to make noise quality evaluations that match the subjective experience of the purchaser
同時應用主觀評價方法?成對比較法（ paircomparisonstatisticalevaluationmethods ）對不同家用空調器噪聲進行主觀評價試驗，並與客觀評價結果進行了對比，結果表明：人主觀響應（煩躁程度）與各心理聲學評價指標之間均具有很高的相關性，相關系數一般均大於0 . 9 ，而與a計權聲壓級之間的相關系數只有0 . 78 。Acoustics - hearing protectors - part 2 : estimation of effective a - weighted sound pressure levels when hearing protectors are worn
聲學護聽器第2部分：戴護聽器時有效的a計權聲壓級估算The sound quality of the appliance has become a significant component in the purchaser ' s overall subjective evaluation. the sound of the appliance used to be evaluated by the noise level measured in db ( a ). however, in some cases, the noise level measured in db ( a ) ca n ' t match the feeling of people
根據有關國家標準，家用電器的噪聲通常採用a計權進行測量，但在某些情況下應用a計權測量的結果有可能不夠確切：在一些情況下，某些產品a聲級並不高，用戶卻抱怨噪聲太吵；而在另一些情況下，盡管其a聲級比較高，但用戶卻可以接受。Seven british cities are furiously bidding against one another for the privilege of being allowed to license the country ' s first super - casino, each one trying to argue that it is more socially deprived than the rest and that it has a worthier plan to use gambling as a catalyst for regeneration
為取得建造該國第一個超級賭場的許可特權， 7個城市正互相傾軋、瘋狂竟價，每個城市都聲嘶力竭地宣稱，自己比別的城市更窮困、自己的計劃更有價值，能利用賭博來促使城市再現輝煌。A robust h _ asac system for enclosed space structural sound radiation is build up for the first time, which is based on the tms320c30 dsp board. the robust h _ controller has been designed through the elections of the performance weighting function and the robust weighting function
它採用精密聲級計做為聲傳感器、激振器做為作動器，通過對性能加權函數和魯棒加權函數的選取，設計了相應的魯棒h _控制器。分享友人