A question about "room Nodes"

[tonyvdb]

Hi Guys, Its learning time. I see the term "room nodes" used a few times in discussions about sub woofer placement and problems it can cause. I honestly have no idea what that means can someone enlighten me on this please and thanks?

[Kal Rubinson]

http://www.marktaw.com/recording/Aco...urse1-Mod.html
http://en.wikipedia.org/wiki/Resonant_room_modes
http://www.etfacoustic.com/modes.html
http://www.realtraps.com/art_modes.htm

These should get you started.

Kal

[Wayne A. Pflughaupt]

tonyvdb wrote:

I see the term "room nodes" used a few times in discussions about sub woofer placement and problems it can cause. I honestly have no idea what that means can someone enlighten me on this please and thanks?

At the most basic, it’s what makes response that starts out like this...

... end up like this once it gets in a room.

Regards,
Wayne

[tonyvdb]

Thanks guys that helps allot. So just to clarify, a room node is where the frequency waves interfere with each other causing peaks or dips in what otherwise would be a smooth and even level throughout the room?

[Wayne A. Pflughaupt]

I think that sums it up nicely. BTW, I think the correct term is actually “modes.”

Regards,
Wayne