各位大侠，，请问在设计一款箱体时，通常在喇叭参数给定的情况下，，在用箱体模拟软件进行模拟时，，其中的QB，QL，QA值如何确定呢？？？？？？另请解释下这三个参数（QA，QB ，QL）是什么意思呢？如何解释。。。请各位帮忙解决下啊。。。。。。。。。。。。。。。。。。。
以下是引用gcc在2009-01-19 14:49:52的发言：
想知道呀,但资格不够呀
是呀，资格不够，我想这是一个交流的网站，没必要设定这么多的门槛吧？
QL表现是箱体的漏气损失，QA是吸收损失，QP是开孔损失，他们的倒数和等于QB，通常QA和QP值很低可以忽略，QB是音箱损失
where Q
L is the “leakage Q”, considered as a parameter of the
driver. In the 1961 paper, Thiele calculated a
similar parameter Q
B, the “box Q”, as a parameter of the
box. When Small showed later that such leakage
losses were much greater in the driver than those in the box, so much so that they could be virtually ignored,
he still called the changed parameter Q
B initially, but later called it Q
L. Thus in the expression above, Q
L is the
loss parameter for the
driver, as calculated below. If Q
L is not known,
it may be taken as 7 without too much
error.
以下是引用新绿在2009-02-24 10:38:14的发言：
where QL is the “leakage Q”, considered as a parameter of the driver. In the 1961 paper, Thiele calculated a
similar parameter QB, the “box Q”, as a parameter of the box. When Small showed later that such leakage
losses were much greater in the driver than those in the box, so much so that they could be virtually ignored,
he still called the changed parameter QB initially, but later called it QL. Thus in the expression above, QL is the
loss parameter for the driver, as calculated below. If QL is not known,
it may be taken as 7 without too much
error.
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