Multi-media art installation calls on PreSonus

Multi-media art installation calls on PreSonus

Published: MEA

SOUTH AFRICA: The Refusal of Time, the latest installation from acclaimed South African-born artist William Kentridge, fuses sculpture with digital video and complex, multi-layered soundscapes to create a multimedia work. The central audio hub chosen for this work is the PreSonus AudioBox 1818VSL.

The viewer is immersed with five video screens covering three walls, running separate but interwoven programme material accompanied by a multi-channel music and sound sculpture. There is a sculpture of a man holding a big megaphone, as well as a giant wooden, breathing elephant in the middle of the room. The soundtrack includes music composed by Philip Miller, as well as spoken word, and of course, the elephant's breathing. The man charged with the logistics of running this complex and unusual setup is engineer/sound designer Gavan Eckhart.

A four-channel bed of music forms the sonic foundation, blending samples of African languages and chants atop the orchestral array of trumpet, trombone, tuba, grand piano, and various percussion. The quadraphonic surround mix is sent, via four of the AudioBox 1818VSL's outputs, to four JBL Eon powered monitors.

On top of this mix is Mr Kentridge's spoken-word soundscape: the man with the megaphone. Here, Mr Eckhart had to think of a creative way to achieve just the right metallic, low-fi sound. ‘The megaphones are a big component of the whole piece,’ he explained. ‘I came up with the idea to just grab some car speakers and mount them in tin cones on tripods and see if it worked. Fortunately, it did. That low-quality rattle and hum those cones produce is actually part of the beauty of the piece.’ Four more outputs from the AudioBox 1818VSL feed the car speakers via a four-channel amplifier.

The installation includes a total of seven Mac minis: five running video playout, a sixth running the audio, and one more as master controller. With most of the installations residing in large warehouse spaces, it's easy to imagine the potential for things to degenerate into a muddy-sounding cacophony. But Eckhart says the AudioBox 1818VSL is more than up to the task.

‘The AudioBox 1818VSL gives me enough matrixing and discrete outputs to route all the individual signals,’ said Mr Eckhart. ‘But more than that, it has a nice, well-defined sound that really allows me to get a good separation between the beautiful musical backdrop and the spoken word with these distorted car speakers.

‘I find that the EQs are very useful for shaping the sound and achieving separation,’ said Mr Eckhart of the AudioBox 1818VSL. ‘If it's a very bass-heavy room, I can just roll off a bit of lows or bring a bit of sparkle to the speakers instead of having to remix and re-export it. It lessens the processing demands on the computer and gives me a tremendous amount of control to create a clear and well-defined soundscape.’

www.presonus.com

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