Include loss/leakage in model & book

[maqifrnswa]

from Ron E:
You will probably want to leave the box and leakage damping terms in. For simplicity just use the same vented box model with Qa(bsorption), Ql(eakage) and Qp(ort), with Qp set to very low value (e.g. 1e-6)

[maqifrnswa]

Can our program tell the difference between acoustic resistances from Rabsorption Rport Rleak?

Small says that acoustic losses, are actually frequency dependent. However, when added all together, the "look" like just leakage loss, so you can model them all simply as leakage. But if we can measure them, we probably should use them, but generate a Qb (which, for practical purposes, everyone just calls Ql since that apparently dominates)

http://www.diyaudio.com/forums/software-tools/288006-scimpy-open-source-speaker-design-impedance-measurements-book-win-mac-linux-3.html#post4641756

/QB3
AA1=0
AA2=0
/QB3
/C4-SC4
Y=(k^4+6_k^2+1)/8
a1=(1-(1-k^2)/(2_sqrt(2)))a3/sqrt(Y)
a2=(1+k^2(1+sqrt(2)))/sqrt(Y)
a3=k_sqrt(4+2_sqrt(2))/sqrt(sqrt(Y))
/C4-SC4

H=Fb/Fs
alpha=Vas/Vb
/common equations
a1=(Ql+h_Qts)/(sqrt(h)_Ql_Qts)
a2=(h+(alpha+1+h^2)_Ql_Qts)/(h_Ql_Qts)
a3=(h_Ql+Qts)/(sqrt(h)_Ql_Qts)
AA1=a1^2-2_a2
AA2=a2^2+2-2_a1_a3
AA3=a3^2-2_a2
/common equations