211

Noise-canceling robots to 'mute' loud conversations in cafe | What if we told you that we can actually silence a noisy table right next to us in a café? (interestingengineering.com)

submitted 1 year ago by L4s@lemmy.world to c/technology@lemmy.world

56 comments fedilink hide all child comments

Noise-canceling robots to 'mute' loud conversations in cafe | What if we told you that we can actually silence a noisy table right next to us in a café?::undefined

you are viewing a single comment's thread
view the rest of the comments

[-] K3zi4@lemmy.world 4 points 1 year ago

Yes, sorry, I didn't phrase that well at all. The sound pressure is actually cancelled out, but with the hypothetical example of the jet engine, anything going wrong could double the dB level instead of cancelling, and because we're talking milliseconds difference, it would be quite easy to go wrong in this sense.

[-] TechieDamien@lemmy.ml 5 points 1 year ago

It can't double the dBs. It will only add 3 as dBs are a log scale and +/-3dBs is double/half.

[-] K3zi4@lemmy.world 1 points 1 year ago

Oops, yes, this. A perceived doubling!

this post was submitted on 21 Sep 2023

211 points (95.7% liked)

Technology

59081 readers

3019 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS