I read about some study that claimed ultra low frequencies make people feel uneasy. It was put forwarded in the article as a possible explanation of haunted places where people feel ill at ease. Really, there might just be earth generated subsonic frequencies in the area."British scientists have shown in a controlled experiment that the extreme bass sound known as infrasound produces a range of bizarre effects in people including anxiety, extreme sorrow and chills -- supporting popular suggestions of a link between infrasound and strange sensations."
On Dec 15, 2005, at 6:26 PM, Michael Plishka wrote:
Part of the issue is that stereo perception comes into play. For example,when we "hear" frequencies below the threshold of what we consider audible,the slight difference of timing of these sounds hitting each ear will resultin the brain doing its own addition/subtraction between the two differentsignals. The result is that the brain definitely perceives these sounds andwe react accordingly with ease/unease, pleasure/displeasure, we know we'rehearing something even if we don't "hear" it. It's this same capabilitythat can cause us to feel quite uneasy when we listen to certain types ofsounds from multiple speaker systems.-----Original Message-----From: Timothy Mungenast [mailto:firstname.lastname@example.org]Sent: Thursday, December 15, 2005 8:08 PMSubject: subharmonics of dog frequencies Re: Looperlative LP1 - samplerateCool story about the test!The theory I read in Tape Op (courtesy of the outspoken audio veteranWalter Sear) was that we hear the *subharmonics* of these stratosphericfrequencies, which is why he feels that allegedly ultrasonic info is stillcrucial.Sounds good to me, but I'm no genius and can't scientifically weigh in onthis.~Tim
[Original Message]From: Ronan Chris Murphy <email@example.com>Date: 12/15/2005 3:20:23 PMSubject: Re: Looperlative LP1 - sample rate
Then there's the whole argument of higher frequencies not beingperceived by the human earand yet still being perceived somehow... Same with extra lowfrequencies. Can we hear below 20Hz? Probably not. Can we perceive below 20 Hz? Hell yes.True. We can absolutely perceive below 20Hz, I live in LA, and we sureas hell feel earthquakes! I am actually in the camp that believes thatthere is important stuff happening above 20k. There were some test(that I was not involved with) where they switched between sine andsquare waves of about 15K, the difference between these two would bethe addition of an additional frequency well above 20K and the subjectscould here the difference. Scientist are not sure why this is thecase. It could be bone conduction (basically our skull shaking) orintermodulation, meaning the high frequency changes the lower one ormaybe we can just actually hear that high stuff some how.But how that applies to a looping instrument, I am not sure there isgreat value in a super high sample rate looper at this point. If youhave any other digital device in your signal chain, you will havechopped off all that high end stuff first time you hit a digital box orfoot pedal.______________________Ronan Chris Murphywww.venetowest.com (Production & mixing: King Crimson, Chucho Valdes,Steve Morse, Terry Bozzio, CGT...)www.homerecordingbootcamp.com (Workshops around the world teaching theart and craft of recording )www.livesofthesaints.net (The hottest ambient noise duo since Sonny &Cher)
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