1 Mar
2006
1 Mar
'06
5:52 p.m.
On Thu, Mar 02, 2006 at 06:47:19AM +0900, res0u2uc(a)verizon.net wrote:
On the subject of the direction of signals in cables,
I
think I can offer to put the issue to rest by reminding
all parties that audio signals from a microphone or to a
loudspeaker are carried by the AC (alternating current)
component of electron movement. Thus the direction of the
electric current reverses many thousands of times each
second, more or less depending on the pitch.
thanks, I was going to say much the same thing.
The only exception I can think of is when there's a
DC offset to the signal of sufficient voltage to force the
signal always be positive (or always negative).
But that would mean something's broken :)
--
Paul Winkler
http://www.slinkp.com