opaqueice Wrote: > 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.
I don't think anyone here has ever said anything about "compression waves" and "rarification waves". It must be something you have imagined. A sound wave is a series of compression and rarifications of the medium it travels through. The net "flow" is always zero. This is so basic that I don't understand why you bother to bring it up? -- P Floding ------------------------------------------------------------------------ P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 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
