Kakaphonizer - The Sonic Browser, invented in 1996 by Mikael Fernström and then further developed by a number of students. The current software version was written by Eoin Brazil. This software enables you to listen to many (perhaps hundreds!) of sound files at the same time. It facilitates the unique ability of human hearing to pick out elements of a complex auditory scene, as part of a novel human-computer interaction design. For further info see for example:

• Brazil, E., & Fernström, M. (2003, July 6-9 2003). Where's that sound? Exploring arbitrary user classifications of sounds for audio collection management. Paper presented at the International Conference on Auditory Display, Boston, MA.
• Brazil, E., Fernström, M., Tzanetakis, G., & Cook, P. (2002). Enhancing Sonic Browsing Using Audio Information Retrieval. Paper presented at the International Conference on Auditory Display, Kyoto, Japan.
• Fernström, J. M., & Bannon, L. J. (1997). Explorations in Sonic Browsing. Paper presented at the BCS HCI '97, Bristol, UK.
• Fernström, J. M., & McNamara, C. (1998, 1-4/11/1998). After Direct Manipulation - Direct Sonification. Paper presented at the ICAD '98, Glasgow, Scotland.