A strange custom build - soundproofing ventilation?

[Sulla]

I am building a sound proof booth for a friend, for listening to recorded sound while laying down in comfort and with little to no external sound interruption. I have already figured out how to do the sound proofing within the framed walls of the booth (think Pullman berth, or those bunk beds on the Defiant from DS9.)

A concern has been raised: Time spent in the small booth would average around 40 minutes. Some kind of air circulation has been requested. Being in the enclosed and soundproof booth might mean that the internal atmosphere will likely heat up from body heat and could possibly make things very uncomfortable. Mounting a fan inside is not an option as the idea of the booth is sensory deprivation other than the sound in the headphones, so air blowing on your body is not welcome.

I proposed 2 or 3 small PC fans or something a little stronger, but still kind of quiet. They would be mounted on the outside of the both on foam frames which reduces vibrations from the fans. These fans would be mounted on one end pulling air out of the booth, and on the other end blowing air in. These would be mounted in a 'chimney' of sorts with sound baffles of egg cartons mounted in a 'staggered' pattern.

Again the goal is not to blow air on the booth occupant cooling him or her, only to get some kind of air flow reducing the stuffiness in there.

What do you think of this design?

Here is a very simple drawing I whipped up to show what I mean:

Another idea would be to mount one long ‘air duct’ along the top of the booth with fans on both ends and sound baffles throughout. Small vents from the air vent into the booth along its length could provide airflow.

 

[franz bolo]

For some reason I keep coming back to this!

FB

 

[Reactor drone]

There is a guy that was on an inventors program here a while back that created tuned vents that cut out 85% of external sounds.

http://www.silenceair.com/site/silenceair-products.html


Not quite egg cartons but a similar idea.

 

[Tan Djarka]

First, would PC fans move an adequate volume of air?

Second, I think you may be overthinking this. A comparable issue is addressed in air handling for high end audio/video rooms. You can get insulated flexible tubes/duct designed for use with high velocity air handling systems (about 4" diameter?). A fan mounted at the one end delivering or drawing the air is rendered completely silent.

Check with an HVAC supplier. They'll probably know exactly what you need.

 

[Sulla]

First, would PC fans move an adequate volume of air?

Second, I think you may be overthinking this. A comparable issue is addressed in air handling for high end audio/video rooms. You can get insulated flexible tubes/duct designed for use with high velocity air handling systems (about 4" diameter?). A fan mounted at the one end delivering or drawing the air is rendered completely silent.

Check with an HVAC supplier. They'll probably know exactly what you need.

Thanks: excellent advice. I'll look into it.