tom permutt Wrote: > This image is not in fact the sum of a sine wave with another at twice > the frequency. The average over time of the sum of two functions is > the sum of the averages, so that if they both have zero mean, the sum > does, too.
Actually, the image looks fine. He's added a sin with frequency f=.5 (in some units) and amplitude A=200 to a sin with f=1 and A=100, but with a phase (70 degrees?). As you say, this has zero DC offset, if by that we mean its time-averaged value, but it is asymmetric because of the phase. -- 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
