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In Reply to: RE: Yes. posted by reuben on October 21, 2014 at 05:17:34
That's fine - there's no reason at all for me to question such a study.
The problem I have with it is that it's only considers the importance of an extended HF to the reproduction of high resolution digital recordings. It seems to ignore the negative effects possible of such a system when asked to play back HF limited recordings of questionable quality such as Redbook CDs and vinyl LPs.
As far as I can tell, given the nature of existing recordings, there's already plenty of issues getting out to 20kHz. This includes the low frequency limits imposed by most listening rooms - ie. how realistic/preferable is an unlimited high frequency range in a bass limited system. Having a system capable of going beyond 20kHz just doesn't seem practical in spite of the empirical evidence suggesting it can make a difference.
Yea sure given an exceptional, special or peculiar playback environment great - but for the rest of us there's really not much to get excited about.
Give me rhythm or give me death!
Follow Ups:
Most electronics will reproduce well beyond 20KHz, generally leaving the speakers as the weak link. Ribbon tweeters respond well to information at 30KHz and above, so getting the ultrasonics into the listening room is not that difficult. Another tweeter type that comes to mind is piezo, but I wouldn't have them in my set up.
Redbook CD content is brickwall filtered before and after digital conversion, and except for omission the ultrasonics are not an issue.
Lesser digital formats have enough trouble with the parts we can hear that I can't imagine ultrasonics ever becoming an problem.
-reub
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