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PinDrop

mkt

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"About the size of a typical conference room, the PinDrop has no windows and two giant flat-screen televisions against one wall, giving it serious Situation Room vibes. And it is, quite literally, suspended in space. The floor floats, set atop isolation blocks. The Sheetrock ceiling is hung from springs. The walls have double rows of studs on isolation pads, along with multiple layers of Sheetrock and insulation. There are no parallel walls, making it harder for sound waves to bounce around. Acoustic panels hang from the walls and ceiling. And it’s all shut in by a soundproof door. The result is a space so quiet that a low-noise microphone only picks up 13 decibels. (A whisper registers at around 30 decibels.)"
And for @Pearljam5000 1234ACs?
FTc6CqdXwAE2wsa.jpeg
 

Pearljam5000

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"About the size of a typical conference room, the PinDrop has no windows and two giant flat-screen televisions against one wall, giving it serious Situation Room vibes. And it is, quite literally, suspended in space. The floor floats, set atop isolation blocks. The Sheetrock ceiling is hung from springs. The walls have double rows of studs on isolation pads, along with multiple layers of Sheetrock and insulation. There are no parallel walls, making it harder for sound waves to bounce around. Acoustic panels hang from the walls and ceiling. And it’s all shut in by a soundproof door. The result is a space so quiet that a low-noise microphone only picks up 13 decibels. (A whisper registers at around 30 decibels.)"
And for @Pearljam5000 1234ACs?
View attachment 209343
Amazing
I wish I could live in it:)
 

sarumbear

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"About the size of a typical conference room, the PinDrop has no windows and two giant flat-screen televisions against one wall, giving it serious Situation Room vibes. And it is, quite literally, suspended in space. The floor floats, set atop isolation blocks. The Sheetrock ceiling is hung from springs. The walls have double rows of studs on isolation pads, along with multiple layers of Sheetrock and insulation. There are no parallel walls, making it harder for sound waves to bounce around. Acoustic panels hang from the walls and ceiling. And it’s all shut in by a soundproof door. The result is a space so quiet that a low-noise microphone only picks up 13 decibels. (A whisper registers at around 30 decibels.)"
And for @Pearljam5000 1234ACs?
View attachment 209343
Interesting. There are two active speakers. How can they be producing such a low SPL?
 
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mkt

mkt

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sarumbear

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Because they only turn them on to add (various sounds) to the noise floor of the room, I'd say.
Then they measure the noise when the room is empty as well. Human body generates more than 13dBSPL.
 
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Somafunk

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Behind a paywall for me unfortunately, will have a Google for info.
 
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