source file: mills3.txt Date: Wed, 5 Nov 1997 22:56:39 +0100 Subject: Manfred Schroeder's books From: John Starrett All- Schroeder's "Number Theory in Science and Communication" has been mentioned recently in this forum, and I don't know if his more 'popular' styled "Chaos, Fractals, Power Laws' has been mentioned. That book also has some musical content and is not as terse (although Schroeder is rarely terse). Also, I built a pair of his reflection phase gratings (supposed to spread a wide band of audio frequencies evenly over about 180 degrees when used as a sound baffle) as per the equations in NTSC and did an informal test on a room full of high school and college mathematics teachers. Most (over 70%, by my recollection) could hear the difference between gratings and no gratings, and of those about 90% (again, by recollection) preferred the sound with the gratings. John Starrett SMTPOriginator: tuning@eartha.mills.edu From: "Patrick Ozzard-Low" Subject: Acoustic Instruments for the 21st Century PostedDate: 06-11-97 13:39:53 SendTo: CN=coul1358/OU=AT/O=EZH ReplyTo: tuning@eartha.mills.edu $MessageStorage: 0 $UpdatedBy: CN=notesrv2/OU=Server/O=EZH,CN=coul1358/OU=AT/O=EZH,CN=Manuel op de Coul/OU=AT/O=EZH RouteServers: CN=notesrv2/OU=Server/O=EZH,CN=notesrv1/OU=Server/O=EZH RouteTimes: 06-11-97 13:38:50-06-11-97 13:38:51,06-11-97 12:39:13-06-11-97 12:39:14 DeliveredDate: 06-11-97 12:39:14 Categories: $Revisions: Received: from ns.ezh.nl ([137.174.112.59]) by notesrv2.ezh.nl (Lotus SMTP MTA SMTP v4.6 (462.2 9-3-1997)) with SMTP id C1256547.0045770C; Thu, 6 Nov 1997 13:38:44 +0100 Received: by ns.ezh.nl; (5.65v3.2/1.3/10May95) id AA04724; Thu, 6 Nov 1997 13:39:53 +0100 Date: Thu, 6 Nov 1997 13:39:53 +0100 Received: from ella.mills.edu by ns (smtpxd); id XA04725 Received: (qmail 4128 invoked from network); 6 Nov 1997 04:39:36 -0800 Received: from localhost (HELO ella.mills.edu) (127.0.0.1) by localhost with SMTP; 6 Nov 1997 04:39:36 -0800 Message-Id: <199711061234.MAA12816@imail.norfolk.gov.uk> Errors-To: madole@mills.edu Reply-To: tuning@eartha.mills.edu Originator: tuning@eartha.mills.edu Sender: tuning@eartha.mills.edu