Do you life activities include diagnosing bad capacitors on circuit boards? Take the time to build an in-circuit capacitor tester and stop needlessly replacing caps that are fine! It takes just seconds to go thru a board and identify all the bad caps!
ruemohr.org/~ircjunk/circuit…
Filters naturally roll off at 20db/decade because the formula for db is 20*log(~).
A lines formula is y = m*x + b
In Log space, the +b is a multiply/divide of the amplitude.
m is always 1, which is why its always 20db/decade.
I can't be sure anyone has ever tried to adjust the roll-off, everyone seems to just go to complex arrays of filters that approximate the rolloff they are going for.
???????
First Order low pass filter that rolls off at 9.5db/decade.
Oh, I'm sorry, would you like me to adjust that rolloff a bit? Which way? By how much? No problem!
}:)