{"id":1012,"date":"2002-05-17T12:07:00","date_gmt":"2002-05-17T19:07:00","guid":{"rendered":"http:\/\/www.sheer.us\/wordpress\/?p=1012"},"modified":"2002-05-17T12:07:00","modified_gmt":"2002-05-17T19:07:00","slug":"pink-noise-generator","status":"publish","type":"post","link":"http:\/\/www.sheer.us\/weblogs\/uncategorized\/pink-noise-generator","title":{"rendered":"Pink noise generator"},"content":{"rendered":"<p><a HREF=http:\/\/world.std.com\/~reinhold\/truenoise.html>here<\/a> is a really cool URL for us propeller-heads about the generation of white and pink noise. <a HREF=http:\/\/www.firstpr.com.au\/dsp\/pink-noise\/allan-2\/spectrum2.html>here<\/a> is a helpful link for understanding the output of a pink noise generator.<\/p>\n<p>I got involved in looking into pink noise generators because I&#8217;ve been dissecting the <a HREF=www.hemi-sync.com>Hemi-Sync<\/a> products produced by the Monroe Institute, in a attempt to understand how they work.<\/p>\n<p>{I can, incidentally, wholeheartedly and without reservation reccomend trying these CDs. They may do nothing to you. They may do all kinds of neat things to you. They&#8217;re audio, they can&#8217;t hurt you, and while they contain some spiritual content, it&#8217;s so generic that I can&#8217;t imagine anyone would find it offensive. Except for me, at first, and I&#8217;m over that. ;-)}<\/p>\n<p>Anyway, as usual, give me a toy, I want to take it apart. <\/p>\n<p>So far as I can tell, I have a few options for generating my own hemi-sync content to feed myself.<\/p>\n<p>Option one is a really creative reprogramming of my Quadraverb II. Doesn&#8217;t appear to be anything stopping me from having a midi-modulation-source controlled pitch changer that routes to the opposite channel. Fine and course tuning, and there you go, a hemi-sync generator. I bet the p2k even would let you do it with their patch cord arrangements, though that might be a bit more difficult. <\/p>\n<p>Option one doesn&#8217;t cover the need for white noise, but I imagine one can come up with it somewhere. \ud83d\ude09<\/p>\n<p>Option two is to get a pink noise generator, run it through a parametric eq and a flexable phase changer, and take two function generators. All into a modern mixing board, and there ya go..<\/p>\n<p>We won&#8217;t even get into my theories concerning visual stimulation. I don&#8217;t buy that hemi-sync is limited to audio..<\/p>\n<p>I wonder how many hz we can see?<\/p>\n<p>Anyway, onto more mundane matters &#8211; the mk3 &#8211; I&#8217;m going to write a bios for it. At first I was thinking I&#8217;d just write a bootloader, but it occurs to me that I really need to go ahead and write a entire BIOS into the bootloader section. Bug-free read and write from RAM, network, dataflash, EE, etc.<\/p>\n<p>Then I can write a program on top of it to manage batteries.<\/p>\n<p>Well, this ought to be interesting.<\/p>\n<p>I already have most of the code, I just need to rewrite, codify, shuffle, and do all that fun stuff. <\/p>\n<p>I wonder. If the BIOS was written in assembly, could the rest of the thing be written in C? Probebly.<\/p>\n<p>The fun never ends, as Leeper would say.<\/p>\n<p>The fun never ends.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>here is a really cool URL for us propeller-heads about the generation of white and pink noise. here is a helpful link for understanding the output of a pink noise generator. I got involved in looking into pink noise generators because I&#8217;ve been dissecting the Hemi-Sync products produced by the Monroe Institute, in a attempt [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/posts\/1012"}],"collection":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/comments?post=1012"}],"version-history":[{"count":0,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/posts\/1012\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/media?parent=1012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/categories?post=1012"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.sheer.us\/weblogs\/wp-json\/wp\/v2\/tags?post=1012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}