I Googled it. Dave Davis, RPT -----Original Message----- From: tnrwim at aol.com Date: Fri, 18 Jun 2010 21:28:35 To: <ed440 at mindspring.com>; <caut at ptg.org> Subject: Re: [CAUT] Anechoic chamber - experiments anechoic Maybe I'm the only one, but I'm not familiar with this word. First, how do you pronounce it. Second, what is the dffinition. Third, what is an anechoic room? Wim -----Original Message----- From: ed440 <ed440 at mindspring.com> To: Jim Busby <jim_busby at byu.edu>; caut <caut at ptg.org> Sent: Fri, Jun 18, 2010 12:30 pm Subject: Re: [CAUT] Anechoic chamber - experiments Jim- That's not my question. f you play a major third and move your head around, it may beat very clearly in ne place and very little in another. hus I am thinking of the ongoing argument about "beatless" octaves. Perhaps the eating varies depending on the location of the listening ear. If so, this hould be fairly easy to detect in an anechoic chamber with the equipment you escribe. This might explain why one person hears an octave as beatless and nother person hears beats. he best octaves to test would be mid-range octaves, where the inharmonicity is airly well matched, not the extreme bass octaves. on't re-tune the octave, move the microphone to a new location. Ed S. -----Original Message----- From: Jim Busby <jim_busby at byu.edu> Sent: Jun 18, 2010 6:14 PM To: Ed Sutton <ed440 at mindspring.com>, "caut at ptg.org" <caut at ptg.org> Subject: RE: [CAUT] Anechoic chamber - experiments Hi Ed, Rick Baldassin's book "On Pitch" has references to these but Rick told me that hese were "not very scientific studies". Chris Robinson told me that he and ick did these studies years ago and that they didn't save the studies. So, ou're right. How much of the fundamental do we really hear at C1? Are Rick's raphs accurate? And I've always wanted to see how much a supposedly identical nison varies at the different partials. (Why no unison can be tuned perfectly ure...) Thanks. Jim Perhaps you can do some mapping of octaves, in particular to see if there are ectors along which coincident partials beat with more or less amplitude, or, if ou will, vectors for beatless octaves. Same could be done for other intervals. Like Don says, record what you find. Ed Sutton -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100619/56c54074/attachment.htm>
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