Tips
Their are really only tow problems with this app one is that by its self the speaker on the iPhone isnt built to be. A sonar but if hook it up to a loader speaker like those $8 ones at wallgreens it seams to beater but the speaker and your mike obviously have to be facing the flat surface at the sam space I also hate the guess bar thing come on! But this was what I was looking for
they about
Sonar Ruler