Mnyb wrote: > I think it's when you have several consecutive samples of 0dB IE like > say 10 full 16bit word lined up together . One 0dB peak is not a problem > . >
Sorry, I still don't buy that. Even _if_ there were some DACs which had such a crappy design that their own interpolation filter created values that they would then clip, dynamics compression would actually make things better, not worse! What's the worst case for your interpolation filter? It's not _several_ FFFF-samples, it's probably zeroes followed by a single FFFF-value or maybe two, followed by more zeroes. Get a digital spectrum analyzer and check it. Lots of FFFF samples are a very simple and boring case and will always interpolate to more FFFF values with no clipping. DACs are signal processing devices not speakers with mechanical parts and inertial. All you are discussing here makes a lot of sense for a speaker and at high volume a speaker might have more problems with compressed dynamics ranges, at least if it's got a badly designed filter (and you can never have perfect analog filters). But people applying analogies from mechanical issues to electronic signal processing is a very common misconception in audiophile circles, just ignore the nonsense. It's the same thing as assuming vibrations from your speakers or whatever would have any impact on your signal processing just because they do for a vinyl record player because that one has a mechanical reading arm. But they don't, unless you shake your device to pieces or vibrations are so hard that they change the properties of open inductors they will not and if the latter happens it's - again - just a crap design and will be much more affected by temperature changes or humidity than vibrations. You know: you read so much nonsense on this internet these days.... > > Yes some CD are deliberately digitally clipped too on top of the > loudness war compression . > > There are some treads on hydrogen audio about this and some old research > white paper I can't seem to find where this is shown to happen in some > consumer CD players . OK, we had that, but Why would they do that and how? You mean they would drop the top bit or something? Or do you say that _cheap_ devices are adding complicated digital signal processing just to add even more dynamics compression? In any case, as said before: if they did anything like that your recording is destroyed, get a better rip. --- learn more about iPeng, the iPhone and iPad remote for the Squeezebox and Logitech UE Smart Radio as well as iPeng Party, the free Party-App, at penguinlovesmusic.com *New: iPeng 8, the Universal App for iOS 7 and iOS 8* ------------------------------------------------------------------------ pippin's Profile: http://forums.slimdevices.com/member.php?userid=13777 View this thread: http://forums.slimdevices.com/showthread.php?t=104121 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
