Phil Leigh;695278 Wrote: > > Just to be crystal clear on this, when Stereophile talk about the 3 > voltage levels... they ARE talking about the AC voltages: > zero-crossing, peak and trough for a single bit representing the sine > wave. They are NOT talking about anything to do with "jagged" DC ladder > steps or anything like that - because with one bit going on or off there > would only be 2 DC values anyway (on or off) and those values do NOT > EXIST outside of the DAC chip/IV stage/Filter... so they can't be > measured by putting any kind of test equipment across the analogue > output of a DAC. > regards > Phil
Hmmm, Phil, I'm curious what you said here. If you feed a 16-bit computer generated -90dB undithered 'sine' wave, you're essentially feeding into the DAC a 1kHz (in this case) 1-bit *square* wave. This is exactly what the measurements show. Since 24-bit DAC's have more dynamic range, they should reproduce the signal very cleanly and this is exactly what we see in good DAC's - clean square waves. Can this not be measured on the analogue output? If there continues to be alot of controversy over this, perhaps we should post a question for John Atkinson. -- Archimago ------------------------------------------------------------------------ Archimago's Profile: http://forums.slimdevices.com/member.php?userid=2207 View this thread: http://forums.slimdevices.com/showthread.php?t=94054 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
