%0 Journal Article %T Soundscape design through evolutionary engines %A Fornari %A Jos¨¦ %A Maia Jr. %A Adolfo %A Manzolli %A J£¿natas %J Journal of the Brazilian Computer Society %D 2008 %I Springer %R 10.1007/BF03192564 %X two implementations of an evolutionary sound synthesis method using the interaural time difference (itd) and psychoacoustic descriptors are presented here as a way to develop criteria for fitness evaluation. we also explore a relationship between adaptive sound evolution and three soundscape characteristics: key-sounds, key-signals and sound-marks. sonic localization field is defined using a sound attenuation factor and itd azimuth angle, respectively (ii, li). these pairs are used to build spatial sound genotypes (ssg) and they are extracted from a waveform population set. an explanation on how our model was initially written in matlab is followed by a recent pure data (pd) implementation. it also elucidates the development and use of: parametric scores, a triplet of psychoacoustic descriptors and the correspondent graphical user interface. %K sound synthesis %K artificial evolution %K genetic algorithms %K sonic spatialization %K acoustic descriptors. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0104-65002008000300005&lng=en&nrm=iso&tlng=en