P Floding Wrote: > Please explain how a signal with no DC can produce a "net flow of air"! > (Ignore the fact that in real systems it still couldn't. Just explain > your theroy.)
What I said was, I'm not sure option 3) is sensible, because I don't see how there can be such a thing as "compression waves" versus "rarefaction waves", since either would mean a net flow of air, and that sounds impossible. Instead, you must just have a series of compression-rarefaction-comp-rare-etc. (relative to the average air density). In other words it seems that if the motion of the cone reverses its polarity and that's the only change, the sound wave produced by that motion must be the same, so option 3) is out. But maybe I'm missing something, which is why I included it in the first place. None of this is affected by the presence of absence of DC - that's got nothing to do with it. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=23759 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
