An analyzer plugin for iTunes. – Macitynet.it
Monmouth Internet has put online the freeware TechRTA which allows an excellent response to the execution of the music, a greater detail of the analyzer supplied by Apple, moreover the analyzed frequency range is much wider and with a key Activation of $ 4 will switch from the 10 standard bands of the free 32-band version. The Plugin is available for both the Mac OS 9 and X versions of iTunes. The online help that explains many details of the operation of iTunes.The application also has many interesting controls that allow you to use it as an excellent real-time spectrum analyzer,
To download simply go to this page.