jt25741;262768 Wrote: > > The fact that noise floor in the analog domain is much higher than > needed to reproduce 24 bits is another matter -- and important as well. > But regardless the information is gone in this case. >
I don't think it's "another matter" - it makes this a moot point (unless I'm missing something). When you digitally attenuate, you take the 24 bit word and reduce it by some factor. When you do that there will usually be a rounding error. But the rounding error will only be in the last bit of the word, so at worst, the distortion it introduces is an error in the 24th bit, or -144dB (and actually a good rounding algorithm could reduce this to -150dB). The noise floor of the TP is something like -120 or -130 dB, making a change in the 24th bit totally inaudible. Conclusion: quality loss from digital attentuation is irrelevant and a myth (at least for the TP and the SB3). Fidelity is reduced when the volume goes down only because of the standard decrease in signal/noise, just as it would with an analogue volume control with the same noise floor. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=42698 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
