Sonia Leber (b. 1959) started focusing on sound as a creative medium after more than a decade of working in film and video. Together with fellow artist David Chesworth, she established Wax Sound Media in 1993 as a unique arts practice creating sound and multimedia installations for art spaces, museums and public sites. A particular focus is the creation of 'sonic event spaces' in the public domain. Leber and Chesworth recently completed Proximities: Local Histories / Global Entanglements (2006) (in collaboration with Simeon Nelson) a major built-in artwork for the new William Barak Bridge in Melbourne. Public artworks include 5000 Calls, permanent soundscape installation, commissioned by Sydney Olympic Park Public Art Program (2000) and The Master's Voice, permanent soundscape installation for City Walk, Canberra, commissioned by ACT Public Art Program (2001). International public art exhibitions include 5000 Calls, soundscape installation along Millennium Riverwalk, Cardiff, Wales, organised by Chapter Arts Centre, and 5000 Calls, soundscape installation along Shoemaker's Footbridge, Ljubljana, Slovenia organised by Cankarjev Dom Arts Centre, Ljubljana (2003). Leber and Chesworth were invited to create The Gordon Assumption (2004), a public art project for the visual art program of the Melbourne International Festival of the Arts, and Reiterations (Elizabeth Street) (2006) was commissioned by Australian Centre for Contemporary Art for the +Plus Factors show. A video installation, The Persuaders, was commissioned for the Australian Centre for the Moving Image in Melbourne (2003). Leber was awarded the major NAWIC Achievement in Design Award in 2000 for the 5000 Calls soundscape installation and she received this award again in 2002 for The Master's Voice soundscape installation. Her video Earwitness was an ATOM awards finalist. Leber's early films have been widely exhibited at film festivals and contemporary art spaces including Germany's Oberhausen International Film Festival, Madrid Week of Experimental Cinema, the Aurora Australis tour of galleries in Canada, the Wit's End exhibition at Museum of Contemporary Art in Sydney and Australian Perspecta at Art Gallery of New South Wales. In 1994, Leber curated the major sound art event Earwitness: Excursions in Sound for Melbourne's Contemporary Music Events. Leber continues to create interpretive sound installations for museums throughout Australia including Museum of Sydney, National Museum of Australia in Canberra, Maritime Museum in Sydney, Museum Victoria and Melbourne's Immigration Museum, reflecting her ongoing interest in cultural history and the use of sound to multiply meanings and contexts. Since 1994, Leber has taught a video studio at RMIT's Department of Architecture and Design.