Kevin Haskins;493694 Wrote: > THD+N is pretty useless as a sole metric, that is true. Especially with > loudspeakers where the on/off-axis FR measurements are more important. > But... when you are splitting hairs over 0.005 THD+N Vs. 0.0001 THD+N, > it is almost guaranteed that there is little audible difference between > the two. Also, you have to more broadly define how it is measured. > Small amounts of odd-order are very audible, higher amounts of even > order harmonics much less so. Also, you would have to know where the > distortion components are in relation to the frequency band. You can > listen to 10% THD at 20 Hz and not tell a distorted sinewave from an > undistorted one. So... yes, it is more complicated than a simple > single number but there is plenty of research showing what is and what > is not audible. > > With transducers, we are very happy to get 1% THD+N at higher listening > levels. Those distortion products are both even & odd order depending > upon the mechanism causing them. I'd say we are pretty safe in saying > that those non-linearities swamp those that are another 40-60dB further > down. It is like saying you can appriciate the sound of your hifi > while using your chainsaw. Nobody would consider that a rational > exercise, yet we routinely make such comparisons when judging audio > components. The rational person, turns off the chainsaw before they > fine tune their audio system for best performance. The irrational > person quibbles about the nuances of the performance while ignoring the > chainsaw.
The distortion of 0.0001 in the mountain can generate a much larger distortion because in our downstream facilities are amplifiers that amplify everything that goes into even the input distortion ... The DAC is selected if you want to increase the detail or to gain a better scene to your own tastes. You say that beyond a certain threshold rather low, (the DAC of the Touch is pretty cheap) do not feel more different. This is not true. Want to support that most audiophiles are deaf? There is an explanation to this. The human ear is an instrument that has had thousands of years of evulozione. What we feel is interpreted by the brain. This explains why there is a DAC with the same distortion feel differently from other DAC. Our ear is perfettamnte able to distinguish small changes that occur in a very short time, while great changes continue over time are not assimilated in the same way. is why we feel the differences between a cable and the other in the presence of a chainsaw as you :-)) I know that we are slightly off-topic:-D -- perito industriale ------------------------------------------------------------------------ perito industriale's Profile: http://forums.slimdevices.com/member.php?userid=34754 View this thread: http://forums.slimdevices.com/showthread.php?t=72246 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
