source file: mills3.txt Date: Mon, 16 Feb 1998 16:20:06 +0100 Subject: seminar announcement in Ithaca NY From: William Sethares In case any of you are going to be in the Ithaca area this week, I am giving a talk at Cornell University that discusses various aspects of "Tuning, Timbre, Spectrum, Scale." It'll be interesting to see how engineers and tuning theory react to each other... Date: Feb 20 1:30 pm, Phillips Hall Title: Perception-Based Audio Signal Processing Speaker: Bill Sethares Abstract: At the intersection of signal processing, music, and psychology lies perception-based audio processing, which investigates the relationships between the structure of sounds, the structure of music, and the underlying biological/perceptual aspects of the human auditory system. The talk begins by showing how to build a device that can measure the "sensory" consonance and/or dissonance of a sound in its musical context. As shown in my recent book "Tuning, Timbre, Spectrum, Scale", such a "dissonance meter'' has implications in music theory, in synthesizer design, in the construction of musical scales and tunings, and in the design of musical instruments. The talk then examines some of the signal processing problems that arise when trying to manipulate sounds so as to remain faithful to psychoacoustic principles. These involve complex (and sometimes ill- posed) optimization problems, as well as (nonlinear and/or time varying) algorithms designed to decrease (or increase!) the dissonance of a sound. In particular, we discuss various "spectral mapping" algorithms that try to move the partials of a sound without changing its "character". Sound examples are present throughout. SMTPOriginator: tuning@eartha.mills.edu From: Xou Oxno Subject: Newband & the Last Laugh PostedDate: 16-02-98 19:25:17 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: 16-02-98 19:24:23-16-02-98 19:24:24,16-02-98 19:22:15-16-02-98 19:22:15 DeliveredDate: 16-02-98 19:22:15 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 C12565AD.006517D7; Mon, 16 Feb 1998 19:24:12 +0100 Received: by ns.ezh.nl; (5.65v3.2/1.3/10May95) id AA04232; Mon, 16 Feb 1998 19:25:17 +0100 Date: Mon, 16 Feb 1998 19:25:17 +0100 Received: from ella.mills.edu by ns (smtpxd); id XA04225 Received: (qmail 1288 invoked from network); 16 Feb 1998 10:24:19 -0800 Received: from localhost (HELO ella.mills.edu) (127.0.0.1) by localhost with SMTP; 16 Feb 1998 10:24:19 -0800 Message-Id: <34E8ADFC.3DD6@virtulink.com> Errors-To: madole@mills.edu Reply-To: tuning@eartha.mills.edu Originator: tuning@eartha.mills.edu Sender: tuning@eartha.mills.edu