Flex Acoustics low-frequency tube absorbers, each 50 meters long, installed at the Eurovision Song Contest 2014 venue in Copenhagen
Canada - The full programme of tutorials, workshops, demonstrations and paper presentations has been announced for the AES 59th International Conference, with an emphasis on Sound Reinforcement Engineering and Technology, taking place 15-17 July 2015, at McGill University in Montreal, Canada.

A recent addition to an already exciting programme, Low-Frequency Control Workshop, will be held on 16 July in the Schulich School of Music's Music Multimedia Room (MMR), and co-hosted by Flex Acoustics. Using Flex Acoustics Inflatable Membrane Low-Frequency Absorbers, Niels Werner Adelman-Larsen of Flex Acoustics will demonstrate the effectiveness of passive acoustic absorption at low frequencies using a number of seven-meter-long inflatable tubes, some installed along the walls, but some "...installed where wall and ceiling meet since we get an enormous LF pressure build up there," says Niels.

Research shows that too much low-frequency reverberation is the primary source of an unpleasant sonic experience perceived by musicians as well as audiences during amplified music concerts. Flex Acoustics offers a new, patented technology of inflated, ultra-thin plastic membranes that seem to solve this challenge of low-frequency control and are suitable for multipurpose halls that need to adjust their acoustics at the push of a button.

The tubes were recently employed to control the acoustics for eight Kraftwerk concerts in the Berlin Neue National Galleria and at the 2014 Eurovision Song Contest held in B&W Hallerne, a former industrial complex located on the island of Refshaleøen in Copenhagen, Denmark.

(Jim Evans)

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