Subject: Re: MDS distances From: Malcolm Slaney <malcolm@xxxxxxxx> Date: Thu, 22 Jun 2006 12:36:10 -0700On Jun 21, 2006, at 2:54 AM, Olivier Tache wrote: > I have read a number of "classical" papers about MDS and auditory > dissimilarity (by Gordon&Grey, Grey&Moorer, Wessel) (and was > wondering if such experiments were still carried out). I think the Gray/Wessel approach has failed.. it's too hard to figure out what the results mean. (Just trying to be blunt to get your attention. ;-) You start with convenient sounds, measure perception and then try to figure out what the MDS dimensions mean. That hasn't worked. I think that is why people have not been pushing on it very hard lately. Hiroko Terasawa and I have been taking an opposite approach. We're *starting* with the dimensions, synthesizing sounds and then measuring the stress between human perception and the pre-ordained model. Several papers describing our initial results are online at http://ccrma.stanford.edu/~hiroko/timbre/ Sounds like Jim is doing something in between the two extremes. - Malcolm