At the Consumer Electronics Show in 2001, the display at this vendor’s booth stopped me cold. Apart from putting all that money into a booth display without bothering to spell-check it (Individual Multiple Stands?), there was the “Before” picture of a signal, degraded by the ill-judged use of some competitor’s signal cable.
Ixos says, “signal arcing between conductors giving the music a coarse characteristic” produces the trace of the graph. I say, “BS”. Ignore the clipping displayed and pay attention to the flatline periods at 0V. I admit that it took me several months and a discussion with an audio engineer at an Acoustical Society of America meeting to work out what could cause this sort of signal, but that it wasn’t the proffered “signal arcing” was immediately obvious. I’ve used just about every conceivable grade of multi-strand wire to hook up test equipment, including stuff so corroded as to be *almost* worthless, and I’ve never seen a signal of the sort they display as the “Before” graphic.
Maybe some of you folks won’t take so long as I did to work out what actually could produce the signal shown there given a sinusoidal input. Have a go at it.