Archive for October, 2010

musical acoustics: a pneumatic 24 string tree guitar

Clippard Instrument Lab has built a 24-string pneumatic guitar “tree” combining sculpture and music with a bit of engineering thrown in.  16 different tubes, seven to eight percussive instruments, and 24 strings.  note: this is brought to you by machinedesign.com, whose motto is ‘by engineers for engineers’.  click on the image below to see the performance…

24 string pneumatic tree guitar

Clouds, heard and felt

Most people are familiar with the typical fabric-wrapped wall panels and acoustical ceiling tiles that absorb sound and echo in office environments—and may also be familiar with the reverberant, unintelligible character of a room without these absorptive treatments.  However, the same absorption can always be provided in less traditional forms, delivering world-class design that just happens to have acoustic benefit as well.

In search of this sort of innovation on a recent visit to Copenhagen, we stopped by the Dansk Design Center, a museum and gallery showcasing the best in Danish industrial, product, and graphic design.  On display among the winners of the 2010/11 Danish Design Prize was a product called Clouds, produced by Kvadrat A/S and designed by Ronan and Erwan Bouroullec.  The product is a modular system of 2-D felt panels that are joined with rubber bands at the edges to form complex, striking 3-D surfaces and volumes.  The resulting felt sculptures can be fixed to walls, hung from ceilings, or form room dividers on their own.

Felt "Clouds", by Kvadrat A/S and Ronan & Erwan Bouroullec

Acoustically, felt is an effective absorber of high-frequency sound, and by trapping substantial air spaces within or behind the overall surface, low- and mid-frequency absorption is possible as well.  Products like this allow the acoustic treatment to form an attractive centerpiece to a space’s visual aesthetic, rather than blending into the background!