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Re: "Inaudible" HF sounds found to affect perception of sound

""These results suggest the existence of a previously unrecognized response to complex sound containing particular types of high frequencies above the audible range. We term this phenomenon the "hypersonic effect."""CJ

Hmmm...

In their study, how did they remove the ultrasonics??

Did they use a filter that changes the hf transient response???

As John Curl has stated, he can hear the diff between a 35Khz filter and a 100Khz one..

Although not having repeated his test, given the ability to discern 20 to 10 uSec timing delays....I see nothing wrong with his statement..I believe him..

So, I ask: how do these researchers know the filter they used did not skew what they are testing for???

Cheers, John



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