thanks.

oh ya, also, i dunno if this makes any sence. but as far as the freq. there must be a certain point in which the pitch is so high that the psi is so minimal, basically nonexistant...but the db is still there. um...ya i think. How can you figure out at what frequency that happens *the psi drop, but spl still steady*

~scratches head~

thanks guys,
marcus

just one thing that im confused about

quote:

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SPL = 20 Log(p/p ref)

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thanks

Logarithmic Functions

Given the exponential function

f(x) = y = bx

it is often desirable to solve for x in terms of y. In order to accomplish this, we define a new function called the logarithm (log for short) to the base b, b > 0 , defined as follows:

g(x) = y = log b x whenever x = by

That is, the logarithm to the base b of a real number x is the real number y such that b raised to the yth power is equal to x. The quantity by, where b > 0 , will always have a positive value for any real number y.

If x = by, then y = log b x and x must be positive in either equality. Thus, the logarithm function has a domain that consists only of positive real numbers.

Note that if b = 1, then by = 1 for any real number y. Thus, the logarithm function having base 1 has only one element in its domain, the number 1, and so it has no real significance.

The quantity log b x, where b = 10, is often referred to as simply log x.

It's just a button on the calculator.
Colin

ShadowStar

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Still looking for that CHEAP Thunderdome :D

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