Remember this is all just conjecture, actually being able to measure this stuff is tough. One possibility is that as code gets "tighter", the loops are smaller etc, more time is spent in code that stays in the processor cache, thus there are fewer accesses to the main RAM. With fewer accesses there will be less noise on the power and ground traces on the board. This can wind up producing lower jitter on the clock and data feeding the DAC chip and lower noise getting injected into the audio path.
Its possible it can also cause less noise on the PS and GND traces from the processor itself, but it could also make it worse! Finding precise mechanisms for this sort of thing is very difficult to do, especially because there is no definitive mechanism or measurement for what causes the type of audible change I'm hearing. If we don't know what difference in the audio signal produces the difference in perceived sound, its really tough to figure how changes in softwar could produce those changes! So for now its all just guesswork and loose correlations. John S. -- JohnSwenson ------------------------------------------------------------------------ JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974 View this thread: http://forums.slimdevices.com/showthread.php?t=70167 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
