<div class="asset-content entry-content"><p>Wendy Zukerman, contributor
</p><p><img alt="IMAGE-C-Riley-Post,-Tracing-the-Invisible,-2010,-AVV-Installation-(3).jpg" src="http://www.newscientist.com/blogs/culturelab/2011/05/11/IMAGE-C-Riley-Post%2C-Tracing-the-Invisible%2C-2010%2C-AVV-Installation-%283%29.jpg" class="mt-image-left" style="margin: 0pt 20px 20px 0pt; float: left;" height="482" width="600" /></p> <p><i>(Image: Riley Post)</i></p><p>"It's beautiful," said my friend Anna as we stared at squiggles of interchanging colour that felt strangely alive. The high art couple to our left was less impressed. They loudly voiced their criticism in the beret-filled crowd. Little did they realise their critique was forming the art.</p> <p>It was the opening of artist Riley Post's new exhibition, , at the Australian Centre for Photography in Sydney. The images - of abstract lines and colour - are created based on the sounds of the audience.</p><p>The technique is not new. "Visualising an audio signal automatically in real-time is quite common," says Post. You can see it in something as mundane as the visualiser plug-in of a media player. What makes Post's work unique,sac louis vuitton pas cher, however,polo ralph lauren, is the way that he has programmed the visuals to interact with the audience's muttering. "Sounds naturally have a rhythm and structure that translates easily into image," he says. "But, there are so many ways to interpret the data."</p> <p>For example, last year, San Francisco based artist created a virtual forest based on classical music. And , a visual artist from Melbourne, Australia, has shown works that convert musical sound into laser beam designs.</p><p><img alt="IMAGE-C-Riley-Post,-Tracing-the-Invisible,-2010,-AVV-installation.jpg" src="http://www.newscientist.com/blogs/culturelab/2011/05/11/IMAGE-C-Riley-Post%2C-Tracing-the-Invisible%2C-2010%2C-AVV-installation.jpg" class="mt-image-left" style="margin: 0pt 20px 20px 0pt; float: left;" height="659" width="600" /></p> <p><i>(Image: Riley Post)</i></p><p>In this exhibition, Post uses a computer program that coverts a live audio signal into numbers that reflect different attributes of the sound wave - such as its amplitude and speed. The numbers direct the coordinates, colours and the opacity of lines and shapes in the image, and Post modulates these to create his desired effect.</p><p>The image builds up from previous sounds, so that even in silence, a blank image won't be presented to the audience. "There is never nothing happening,louis vuitton sac," he says.</p> <p>Besides creating something beautiful, Post says he is exploring a connection which could "easily exist between sight and sound - if only our brains were wired right."</p><span id="more"></span><p>In this exhibition, Post uses a computer program that coverts a live audio signal into numbers that reflect different attributes of the sound wave - such as its amplitude and speed. The numbers direct the coordinates, colours and the opacity of lines and shapes in the image, and Post modulates these to create his desired effect.</p><p>The image builds up from previous sounds, so that even in silence, a blank image won't be presented to the audience. "There is never nothing happening,ralph lauren pas cher," he says.</p> <p>Besides creating something beautiful, Post says he is exploring a connection which could "easily exist between sight and sound - if only our brains were wired right."</p><p><i>Watch a video of the changing Tracing the Invisible exhibition </i>.</p>
<b>Exhibition Information</b></div>
<i>Tracing the Invisible</i>
Australian Centre for Photography, Sydney, Australia
Until 11 June
