Question about sound travel

[joshbhr]

Is there a way or formula, to find the distance sound can travel given a certain level of sound. For example, is there a way to find how far sound with the intensity level of 100 will travel? Please help! Thanks!

[joshbhr]

I am not asking anyone to do that problem. I am just using as an example to help you all understand what I mean.

[mmwave]

Originally posted by joshbhr
Is there a way or formula, to find the distance sound can travel given a certain level of sound. For example, is there a way to find how far sound with the intensity level of 100 will travel? Please help! Thanks!

When you say how far while the sound travel you really mean how far will it travel before it reaches some specified intensity level, 1/1000 of its initial intensity.

If it were a point source it would fall off as 1/r^2. If it's not a point source it depends on what kind of source it is.