Eavesdropping on the Secret Sounds of Trees

What if we could identify plants not by sight but by sound ? It ’s not entirely imaginary : every industrial plant make a unique set of auditory sensation — an auditory theme song , if you will — influenced by its physiology . But these sound , usually in the supersonic range , are not for our ears .

Biologists have long known that air and water system moving through a plant ’s vascular system make what we might think of as instant , hiccup , and coughing . A Swiss labor simply call up “ tree diagram ” aims to look into the acoustic emissions of plants . Just as a Dr. might put a stethoscope up to your chest of drawers , listen in on works could be one way to monitor their well - being . Thepops of a tissue layer rupturingin a Sir Herbert Beerbohm Tree ’s vascular system , for example , could be a sign of how well plant are react to drouth .

A adaptation of the audio - visual facility . credit rating : Marcus Maeder

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The project is a collaboration between the Institute for Computer Music and Sound Technology and Swiss Federal Institute for Forest , Snow and Landscape Research , and it is as much art as skill . A surround - good installment of tree recordings was exhibited atswissnex San Francisco in 2012 . If you close up your eyes stand in that copse of microphones , you ’d be transport into an audile forest — though not needs a familiar one . Instead of rustling leaves or snapping twigs , you ’d hear snaps , click , and hisses .

We do n’t have a whole woodland , but here are theauditory emissions of a Scots true pine .

Trees may not jump or fly , but they ’re dynamic in their own restrained way . It ’s noteworthy , if you think about it , that most of the Mrs. Henry Wood ’s mass comes from carbon atoms a industrial plant pull out of the air — out of thin airwave ! These recordings give voice to usually silent processes , reminding us of the elusive zing of trees . [ Marcus Maeder ]

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