Created
February 12, 2019 15:35
-
-
Save ianmcook/f0c3a8213f0841aa4f7a0f158c206822 to your computer and use it in GitHub Desktop.
Closed box loudspeaker equations
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# closed box loudspeaker equations | |
Qtc <- 0.707 # you choose this; see LDC p.24 | |
Qts <- 0.40 # property of driver | |
fs <- 19 # property of driver | |
Vas <- 260 # property of driver | |
alpha <- (Qtc/Qts) ^ 2 - 1 | |
fc <- (Qtc * fs) / Qts | |
f3 <- sqrt(((1/(Qtc ^ 2) - 2) + sqrt((1/(Qtc ^ 2) - 2) ^ 2 + 4)) / 2) * fc | |
f3 # Hz | |
Vb <- Vas / alpha | |
Vb / 28.3169 # cubic feet |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment