[Jimbo]

Anyone care to explain how the top half of an audio waveform relates to the bottom half?

I know that the waveform shows the signal over time, but what does the direction (up/down) of the waveform mean? I'm guessing that it's frequency related with the top being the amplitude of the signal going higher in the freq spectrum, and bottom being the amplitude of the signal going lower in the freq spectrum.

Thanks,

- Jim