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Καλα,αυτο με το 1khz ειναι οντως τρελλο!Μου εχει συμβει καποιες φορες-οντως ετσι ειναι!Fs 1000 Hz χαμηλή; Δηλαδή 500 και 600 Χερτζ τι είναι;
Ο Troels Gravesen εξηγεί καλύτερα γιατί η Κάριο επιμένει σε χαμηλή συχνότητα αποκοπής:
"Frequencies below about 700 Hz are processed by determining the arrival time to each earpinnae and this is referred to as IT ). Frequencies above about 1,400 Hz are processed by determining the energy flow delivered to each era-pinnae and this is referred to as IAD (inter-aural amplitude difference). We soon recognize Duplex Theory not to be exhaustive because it fails to correctly explain the localization process within the missing 700-1,400 Hz range. At these frequencies head & torso are enough obstructive to modify the incoming wavefront (diffraction) so that the crossover from ITD to IAD is not linear and localization cues are not flawless."
What appears to be the long and the short of it, is this: The ear detects sound in two ways as described above. I've checked Wikipedia and this seems sound knowledge. http://en.wikipedia.org/wiki/Interaural_time_difference. So, between ~700 and ~1400 Hz our brain has trouble finding out what the heck is going on, so by placing the point of crossover between these two frequences, we fool the ear/brain and we can't find out whether the sound comes from one driver or the other. Result: Perfect driver integration! Does this make sense to you? If not, please post me your interpretation. By the way: In the laboratory where I work, we have three incubators side by side. Whenever an alarm (~1 kHz sine wave) goes on, it's impossible to hear from which incubator the damn sound comes, so maybe we have trouble localising sounds from this frequency range). Just a thought.
What is a bit disturbing is that the Sonnet drivers integrate very well. And not only well, but excellent. Came to think of my SP44 speaker with the Accuton dome dome crossed at 900 Hz...