Subject: two technical reports available From: "Dr L S Smith (Staff)" <lss(at)COMPSCI.STIRLING.AC.UK> Date: Tue, 28 Sep 1993 14:29:42 BSTThe following are available from me (by mail only, at the moment) Temporal localisation and segmentation of sound using onsets and offsets CCCN Technical Report CCCN-16 Onset and offset filters for sound are developed. These are inspired by both the neurobiology of the cochlear nucleus and by the on-centre off-surround filters used in image processing. These are used to perform the temporal localisation of simple sounds. The techniques are used to localise in time a succession of non-overlapping simple sounds. Segmentation of more complex sounds is considered as a question of the temporal localisation of the sound's time components. The technique developed is applied to a percussive and a blown musical instrument, and to simple speech sounds, and results given. Some further development directions for the methods employed are suggested. Position Paper: Processing sound for interpretation. By taking an ecological view of sound perception strongly influenced by J.J. Gibson, we consider what the sound itself can usefully tell us about the source. We are therefore interested in extracting appropriate stimulus information. Since we also believe that low-level human auditory processing is independent of the nature of the sound, be it speech or not, we are interested in how the low-level human auditory system extracts such information. The eventual aim of this work is synthetic sound interpretation systems which can perform the simple tasks which we take for granted as humans. A brief description of a programme of research is included. Available from: lss(at)cs.stir.ac.uk Dr. Leslie Smith, Department of Computing Science, University of Stirling, Stirling FK9 4LA Scotland.