Acoustic Archaeology

In her new book, The Bird Way, Jennifer Ackerman describes Australian lyrebirds as audio archaeologists, birds capable of keeping lost songs and soundscapes alive across multiple generations even as local ecologies change.

She describes a group of lyrebirds captured in one part of Australia and later released in Tasmania. “The birds continued mimicking birdcalls from their old landscape for many years,” Ackerman writes. “Thirty years after they were released, their descendants were said to be imitating birds never present on the island, such as pilotbirds and whipbirds,” thus offering what Ackerman calls “compelling proof of cultural transmission, one generation passing on knowledge to the next.”

For Ana Dalziell, a lyrebird-expert Ackerman meets out in the field, this makes lyrebirds “archivists of soundscapes.”

[Image: Painting of a lyrebird by John Gould, courtesy archive.org.]

The idea that the acoustics of no-longer-existing landscapes are being passed down socially through generations of songbirds is incredible, as well as suggestive of a possible tool by which landscape historians could attempt the sonic reconstructing lost environments.

The sounds of old elevators or HVAC systems in a now-destroyed building—perhaps even a demolished work by a globally renowned architect, her building now known only through acoustic after-effects, its buzzes and whirs still passed tree to tree—still being imitated by local songbirds; or the sounds of wind passing through now-extinct trees, or trees lost to recent wildfires, still being reproduced by local songbirds; or the sounds of ground-dwelling predators who are not extinct, but have nevertheless moved on to other parts of Australia, still popping up as acoustic imitations: an audio archaeology based entirely in the communal surround-sound of social singers.

You want to hear the sounds of lost buildings or extinct landscapes, and merely need to head deep into the trees, listening to lyrebirds along the way.

(Thanks to Nicola Twilley for giving me The Bird Way!)

Sound House


[Image: Robert Fludd’s “Temple of Music,” via Public Domain Review].

The next generation of car audio might not require speakers at all, according to the New York Times, with interesting implications for architecture.

“Continental, a German auto-components supplier, has developed technology that makes parts of the car’s interior vibrate to create high-fidelity audio on a par with any premium sound system on the road now,” the newspaper reports. “The approach turns the rear window into a subwoofer. The windshield, floor, dashboard and seat frames produce the midrange. And the A-posts—the posts between the windshield and the doors—become your tweeters… The result is something like an enhanced version of surround sound.”

The architectural applications are pretty obvious—for example, transforming your home’s windows, pillars, floors, and even foundation walls into pieces of an inhabitable sonic ensemble. The results would be sound everywhere. “You can’t tell where it’s coming from,” a Continental engineer remarks.

Should the tech find a foothold in car design, its leap over into architecture will not be far behind: first up would no doubt be amusement parks, cinemas, and other venues where immersive sound without origin is a premium service, followed closely by luxury home construction and then, finally, the rest of us. The whole article, in fact, has descriptions of future car audio—noise-cancellation, cones of silence, and more—that should be of interest to architectural designers.