Subject: Re: AUDITORY Digest - 9 May 2002 to 10 May 2002 (#2002-72) From: David Spondike <Dspondike(at)AOL.COM> Date: Sat, 11 May 2002 08:13:07 EDTAndrew - Just a couple of comment on your brightness question. One speculation of high a low frequency. The suggestio of researching multimodal peceptions would seem to be the way to go. High and low as decriptors of pitch make sense when associated with mass and volume. Larger more massive objects tend to produce lower frequency sound. In physical space, larger, more massive object tend to be situated "below" most lighter, smaller objects which tend to produce higher frequency sounds. Hence, low frequency sounds sound "lower" also. An older book, written in a bit of a romantic style, but very interesting non-the-less, is Sound and Symbol by F. Zuckerlandl. Z. describes the analogy between physical space and auditory space. David Spondike Dspondike(at)aol.com