On Sun, May 18, 2014 at 10:52 AM, Rupert Swarbrick w= rote: > "Richard R. Pope" writes: > >> There is reason for me going into this amount of detail because it >> begs the question, if most people can only hear from 20 Hz to 18 KHz why >> are high end stereos designed to recreate sound from as low as 1 or 2 Hz >> up to 25 KHz. It is because of perception. If those frequencies are >> missing the sound just doesn't feel as good. It lacks content. Worst is >> a system that is able to recreate these frequencies but in the process >> it distorts the lower and higher frequencies. This will drive even the >> average listener nuts. > > This is interesting. Some time ago, I read this article: > > http://people.xiph.org/~xiphmont/demo/neil-young.html > > which I remembered suggesting that's a bad idea. Looking again, it seems > I remembered correctly. Can you give any references for properly blinded > studies that support the "doesn't feel as good" claim? Frequency response is generally specified at 3 db down. A system with greater frequency response is most likely going to have a flatter response in the range of hearing. At the lower end, you can feel frequencies below the range of hearing. -p. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .