Not sure if this was posted yet, but I thought I might put together a little guide on how to determine where a song peaks.

 

Go to http://audacity.sourceforge.net/ and download for your applicable OS.

 

 

Install it and everything open it up...

 

Drag and drop your song from Itunes, etc.

You should end up with something like this.. Select a portion of the song you want to anylize or you can do CTRL+A to select the entire song.

 

Go to Analyze then to plot spectrum,  you may get an error "Too much audio was selected. Only the first XXX.X seconds of audio will be analyzed. That's fine just click, OK.

This window will then pop up, on the lower left of your screen change the drop down menus to exactly what I have.

 

 

If you drag your cursor you can see what frequency is loudest, which in our case is 34HZ. The closer to 0 the louder it will be.

 

thanks... I do this a lot so I know where the song is "loudest" with bass line