Author Topic: Voices (crying) through ducts  (Read 4134 times)


  • Guest
Voices (crying) through ducts
« on: April 22, 2006, 02:06:27 PM »
We have a problem with our ductwork upstairs transmitting our baby's crying to our older son's room, which wakes him up.  The noise also travels from my son's room to the baby's room, so when he wakes up from his nap, he then wakes up the baby.  Ugh!

The rooms are separated by a bathroom, but the venting for the rooms share the same duct line, which splits in a Y to each room.  It's as if the baby was screaming right in my son's ears each morning because of the way the vents amplify the sound.  

We have easy access to the ducts because the area next to the rooms is unfinished, but we're not sure how best to muffle the sound ... any suggestions?

A tired mom who needs her children to not wake each other up.


  • Guest
Re: Voices (crying) through ducts
« Reply #1 on: September 30, 2006, 05:58:38 PM »
Perhaps closing the ducts during the time frame that the sound transfer is a problem. Each register in every room usually has an adjustable lever  that opens and closed the vents.

Lining the ducts with a closed cell sound absorbing foam could aslo help. You could line the ducts only as far back as you can reach after you have removed the register's grille work.