(19)

(11)

EP 1 632 106 A1

(12)

(43) Date of publication: 08.03.2006 Bulletin 2006/10 (21) Application number: 04734790.1 (22) Date of filing: 26.05.2004

(51) International Patent Classification (IPC):  H04R 25/00(1968.09) (86) International application number: PCT/AU2004/000701 (87) International publication number: WO 2004/105429 (02.12.2004 Gazette 2004/49)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 26.05.2003 AU 2003902588 27.05.2003 US 445462 (71) Applicant: DYNAMIC HEARING PTY LTD Richmond, VIC 3121 (AU)	(72) Inventors: BLAMEY, Peter, John South Yarra, VIC 3141 (AU) SMITH, Benjamin, John Balwyn, VIC 3103 (AU) (74) Representative: Robson, Aidan John  Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)