Notre Dame is back. And so are its acoustics.
The Paris cathedral, which burned dramatically in a fire in 2019, is reopening to the public on December 8. In the aftermath of the fire, acoustics researcher Brian Katz has been studying the sonic qualities of the cathedral, such as the echoes and reverberations created by the space, both after the restoration and in different eras of the cathedral’s centuries-long history (SN: 1/12/20).
Before the fire, Notre Dame was reverberant, meaning that noises would hang in the air for seconds at a time before dying out, due to sound waves bouncing off the walls, floor and other surfaces inside the massive space.
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