From owner-freebsd-multimedia Wed Dec 11 16:55:34 1996 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id QAA25007 for multimedia-outgoing; Wed, 11 Dec 1996 16:55:34 -0800 (PST) Received: from hod.tera.com (hod.tera.com [206.215.142.67]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id QAA24988 for ; Wed, 11 Dec 1996 16:55:30 -0800 (PST) Received: from athena.tera.com (athena.tera.com [206.215.142.62]) by hod.tera.com (8.7.5/8.7.3) with ESMTP id QAA06861 for ; Wed, 11 Dec 1996 16:54:57 -0800 (PST) From: Gary Kline Received: (from kline@localhost) by athena.tera.com (8.7.5/8.7.3) id QAA19268 for multimedia@freebsd.org; Wed, 11 Dec 1996 16:54:56 -0800 (PST) Message-Id: <199612120054.QAA19268@athena.tera.com> Subject: HowTo create binaural beats ... To: multimedia@freebsd.org Date: Wed, 11 Dec 1996 16:54:56 -0800 (PST) X-Mailer: ELM [version 2.4ME+ PL23 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-multimedia@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I may need to subscribe to this group...if what I have in mind is doable from FreeBSD with you're standard, everyday SoundBoard. I'd like to create what is known as a binaural-beats track. Where one ear hears a tone at, say, 200Hz and the other ear hears a tone at 204Hz. This has been shown to cause the brain to sync into a 4Hz (delta) brainwave pattern. Or rather, such techniques help train the brain to achieve such a pattern. If the range of the beats is higher, say 200 and 220, the brain follows the sound and achieves an alpha brainwave state. At least this is what the studies have shown over the past 40 or 50 years. I'd like to know how to use my SB to produce something like this. I haven't seen any tools in the Ports listings that will allow composition. If I have to go over to the DOS world, fergetit... Thanks for any insights here. gary kline