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Filtering higher listenable frequencies or not?
Filtering higher listenable frequencies or not?
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Old 27th November 2017, 04:26 PM   #11
adason is offline adason  United States
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Quote:
Originally Posted by joztom View Post
If you like to amplify audio signals inside all over declaring 20Hz-20 kHz, you will get about nothing in pure sinusoidal form. Every sinusoidal has implemented aliquots in triangle, saw or quadratic grass signals in it. You can imagine in 1 kHz tone with ten to hundred aliquots inside, you measure really 100kHz tone. If you once more close frequency with filters, yes, you will get frequencies, but nothing from real speech or music. Limited bandwidth is one of the biggest lie in audio dialogues. Imagine, you seat in auditorium, full of listeners and listen applause of ten thousand people, maybe the last are 200m from you. You can clear listen everybody in front of limited bandwidth your ears. This much more complicate to answer, why is this so. The fast amplifier with minimum 100V/microsec and 1MHz bandwidth are the law for good reproduction.
what a load of BS!
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Old 27th November 2017, 04:43 PM   #12
scottjoplin is offline scottjoplin  Wales
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Quote:
Originally Posted by joztom View Post
Every sinusoidal has implemented aliquots in triangle, saw or quadratic grass signals in it.
This bit makes a kind of sense if you turn it the other way round, ie, it is completely wrong
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Old 27th November 2017, 07:23 PM   #13
joztom is offline joztom  Slovenia
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I have to apologize to all of you; I am old and also bad in English. In term of this I am not able to express all my knowledge and mileage after 45 years in this hobby. The best judge is anytime your own ears; never you hearing any suggestions from outside.
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