pfarrell;381174 Wrote: > This is not to argue that 44.1kHz is the perfect sample rate. But if > you > think it needs to be higher, then you have to argue that there is > useful > information above 22kHz. I believe, without justification, that there > may be something between 20kHz and 40kHz, not much, but there may be > something. But that just justifies a 88.2 or 96kHz sample rate.
The only caveat that I would throw into this, is to return the fact that the Nyquist/Shannon limit is only mathematically correct for an infinite number of samples. Without an infinite, or at least very long series of samples, you cannot precisely define the amplitude of a sine wave at a frequency just below the limit. In fact, if you do the analysis, changing the amplitude of a sine wave implies the addition of higher frequency components than the fundamental. IMHO, 44.1kHz is on the edge for reproduction of 20kHz material, and too low for 22kHz. On some recordings it will be fine, on others it will be stressed. Music with a lot of dynamic high frequency content will expose this weakness first. Even 48kHz is a substantial improvement. Having said that, I must admit that given a choice, I think that word size is probably even more important. There just isn't much happening around 20kHz, in terms of energy produced, or my ability to hear! 24bit at 48kHz may not impress the marketing types as much as 24/96, but I suspect it's all you really need! As always, your mileage may vary! Cheers, Dave -- DCtoDaylight Audiophile wish list: Zero Distortion, Infinite Signal to Noise Ratio, and a Bandwidth from DC to Daylight ------------------------------------------------------------------------ DCtoDaylight's Profile: http://forums.slimdevices.com/member.php?userid=7284 View this thread: http://forums.slimdevices.com/showthread.php?t=57631 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
