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In Reply to: RE: Are speakers that go to 20k Hz really needed? posted by DRam on October 19, 2014 at 19:44:52
Best regards,
-reub
Follow Ups:
Very interesting. Especially the information that even those totally deaf react to high frequency sound (not consciously, just physiologically.
We are a more complex organism than most think.
Another thought occurs. Since one of the systems affected is the pleasure center might it be that some individuals can become addicted to music? In my own experience there are those who can take music or leave it (my wife and two children) and others (myself and the other two children) who find music an important part of their daily life and make time to just listen.
The addiction concept would explain this site. We are a group who have to have music, and have it in the purest form possible.
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!
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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