AudioXplorer provides real-time analysis window where user can visualize the amplitude and the FFT.
AudioXplorer provides static analysis window: user can record or generate any sound and performs operation on it (FFT and Sonogram).
AudioXplorer is very easy to use with it Aqua interface (several windows can be opened at a time, drag-and-drop support, view appearance can be customized)
And many more...
Record sound directly inside AudioXplorer
Import and export file in AIFF format
Unlimited number of views per static window
Unlimited number of static windows
Unlimited number of real-time windows
Export view in TIFF (using drag-and-drop)