Patrick Dixon;194629 Wrote: > Hmm, so to a good approximation, are all the bits 1s or 0s ... or > somewhere in between? Obviously they would all have to be the same as > "to a good approximation" the voltage is the same. Not really sure how > you tell the 1s from the 0s in that case, but hell, no-one can hear the > difference anyway.
Sorry, I thought my statement was suffciently clear, but apparently not. The good approximation is that the voltage is the same everywhere along the wire *at a given time*. Obviously it changes with time, but it doesn't depend on position along the wire. One way to see why that is to consider the time it takes an EM wave to travel down the wire - a few picoseconds - versus the inverse frequency of the signals being sent (typically 1000 ps). Imagine looking down at the ocean through a magnifying glass. You only see a little bit of water, so the height of the water doesn't vary across the part you can see, but of course it varies with time as waves pass by. So to a good approximation the part of the water you can see is flat, but moving up and down with time. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=34406 _______________________________________________ audiophiles mailing list [EMAIL PROTECTED] http://lists.slimdevices.com/lists/listinfo/audiophiles
