is with the work [Rodmg] put into the software. He matched the original Winamp UI very closely, both in terms of layout and performance. The pains he went to to get the spectrum analyzer working ...

Now you can get a $49 spectrum analyzer to go with it ... or you might be able to do a software solution. If you only need audio frequencies and you want novelty, try some ping pong balls ...

A hardware device or software used to examine the frequency ... For example, whereas an oscilloscope would show total noise level, a spectrum analyzer would show the noise as related to frequency.

The swept-tuned spectrum analyzer is commonly used by RF communication technicians, engineers, and amateurs. This type analyzer is a superheterodyne receiver with special circuits and characteristics ...