... Non-linguistic sounds have great advantages for the mapping of perception to objective spectro-temporal features as they are complex, have meaning and are familiar, but do not have the confounding overlay of semantic and linguistic constraints of language. Some studies have probed various perceptual properties of NLSs (Halpern et al., 1986;Ballas, 1993;Penrose and Clark, 1994;Cycowicz and Friedman, 1998;Lewis et al., 2005;Reddy et al., 2009;Reuter and Oehler, 2011;Singh, 2011;Kirmse et al., 2012;Talkington et al., 2012) to make findings such as the importance of spectral features to percepts of unpleasantness in NLSs (Halpern et al., 1986;Cox, 2008;Reuter and Oehler, 2011). However, almost all of these studies focused on only a single percept and outside of special sets or precepts of sounds such as musical timbre (Grey, 1977;Grey and Gordon, 1978), urgency (Momtahan, 1991;Hellier et al., 1993;Burt et al., 1995;Edworthy et al., 1995;Haas and Edworthy, 1996;Graham, 1999), and identification of materials, e.g., the length of a material being struck and whether it is made of metal or wood (Warren and Verbrugge, 1984;Lakatos et al., 1997), tones (Pollack and Ficks, 1954), or subjects, e.g., the gender of a human walker (Li et al., 1991), little is known generally about the perceptual mappings between complex auditory stimuli and their objective features. ...