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Looper's Delight
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Cool story about the test! The theory I read in Tape Op (courtesy of the outspoken audio veteran Walter Sear) was that we hear the *subharmonics* of these stratospheric frequencies, which is why he feels that allegedly ultrasonic info is still crucial. Sounds good to me, but I'm no genius and can't scientifically weigh in on this. ~Tim > [Original Message] > From: Ronan Chris Murphy <looper@venetowest.com> > To: <Loopers-Delight@loopers-delight.com> > Date: 12/15/2005 3:20:23 PM > Subject: Re: Looperlative LP1 - sample rate > > > > Then there's the whole argument of higher frequencies not being > > perceived by the human ear > > and yet still being perceived somehow... Same with extra low > > frequencies. Can we hear below 20 > > Hz? Probably not. Can we perceive below 20 Hz? Hell yes. > > > > True. We can absolutely perceive below 20Hz, I live in LA, and we sure > as hell feel earthquakes! I am actually in the camp that believes that > there is important stuff happening above 20k. There were some test > (that I was not involved with) where they switched between sine and > square waves of about 15K, the difference between these two would be > the addition of an additional frequency well above 20K and the subjects > could here the difference. Scientist are not sure why this is the > case. It could be bone conduction (basically our skull shaking) or > intermodulation, meaning the high frequency changes the lower one or > maybe we can just actually hear that high stuff some how. > > But how that applies to a looping instrument, I am not sure there is > great value in a super high sample rate looper at this point. If you > have any other digital device in your signal chain, you will have > chopped off all that high end stuff first time you hit a digital box or > foot pedal. > ______________________ > Ronan Chris Murphy > www.venetowest.com (Production & mixing: King Crimson, Chucho Valdes, > Steve Morse, Terry Bozzio, CGT...) > www.homerecordingbootcamp.com (Workshops around the world teaching the > art and craft of recording ) > www.livesofthesaints.net (The hottest ambient noise duo since Sonny & > Cher)