capacitor dielectric bias


I've seen speaker cables with dielectric bias.
Why not capacitors, too? It'd be like biasing a transistor to reduce switching noise.
is this wacky?
If it's possible I want a a piece of the action, after all it was MY idea!
magfan
Biasing of electrolytics is even more critical than that of film. If not biased, they will distort. This has led to a bad reputation for electrolytics, one not deserved if they are actually treated properly.
I have only seen this phenomina with high capacity ceramic capacitors, not in electrolytics.
Liguy, it is very well known in electrolytics. If an electrolytic is used as a coupling cap, the cap must be biased with a DC voltage that is larger than the AC signal it is being used to couple. Electrolytics *really* don't like being reverse-biased, which would happen on part of the waveform if the first part of this statement is not realized.

Now in crossovers, 'non-polar' electrolytics have been used for years, but that technique produces distortion because of this bias issue. If they are to be used successfully in a crossover, the caps have to be biased with a battery. When this is done they easily operate with the performance of film caps.
I don't understand the answer, either.
I'd like to see a sketch-o-matic with the dielectric bias clearly noted.

I was thinking along what may be a different line. I guess I'll draw what I want to do and 'think it thru'.