Je le mets là

[PP_65↑↓]

parce que les idées et les techniques ne sont pas récentes même si toujours d'actualité .

"And they used a wave measuring device, which was actually invented to test the harmonic strength of metals, and this would measure the room, and you discover which frequencies would resonate too much, others too little," McNally said. "And so the idea would be to tune the room flat, and so you would start from there with equalizing the sound system to make it sound perfect to the audience"

https://www.cbsnews.com/news/dead-sound ... d-DSGysQg8