Noise-cancelling apartment project

[Soldermizer]

Here's an unusual "DIY" project:


Scientists Say You Can Cancel the Noise but Keep Your Window Open - The New York Times

 

[system7]

I read that one too. Promoted by the Firefox browser's new excellent "Pocket" feature.

Throws up a dozen interesting news articles every day, of a thoughtful nature. And frequently scientific. I guess Google knows everything about us and what we like.

 

[lcsaszar]

It popped up at me too. But it drops permanent noise, and by some 10 dB only. Frequency band is also limited. The most comprehensive description I found here:
Active control of broadband sound through the open aperture of a full-sized domestic window | Scientific Reports

 

[Mindsource]

Seems to work best for traffic or someone mowing the lawn. When it comes to apartments, options are still limited. I made a huge non permanent wall with green glued double drywall and air sealed insulation behind and I barely hear my neighbor anymore when he's playing loud video games. It was a lot of work though.

 

[planet10]

I read that too. No real info in it. Something i have been interested in for a while… more to keep a shop quieter when the CNC or big saw is being used.

dave

 

[jjasniew]

When I worked at Amazon, they had music playing LOUDLY at times, which, admittedly, did inspire the material handlers and make their workday a bit more pleasant. The maintenance and control people were loaded into a single "war room", whose door and walls provided a limited amount of attenuation...

This would be a great spot for such an application. Imagining a PZM mic attached to an outside wall, with a self powered speaker inside. The system probably needs a switch to detect when the office door is opened...which happens frequently.

Funny, recalling some of the material I got used to listening to. They called me "headphone guy" as I wore a pair of audio technica noise cancelling pretty much all the time, to reduce the factory background noise.

 

[davidsrsb]

In many situations 10dB could be enough to bring long term hazardous sound levels into the safe range.