Corner trap myth

[coachz]

Can anyone comment on this please?

http://www.moultonlabs.com/more/taming_the_big_wave/P1/


The Myth of Corners
There is a commonly held assumption that the best place to trap bass is in the corners of a room, because there is a “bass buildup” there. Unfortunately, the bass buildup is an increase in pressure variation, not molecular velocity. If you stick a “bass trap” tightly into a corner, it can’t do much absorption at frequencies lower than those whose quarter wavelength is equal or less than the dimensions of the trapping device. For instance a trap one foot in diameter touching the walls will only absorb frequencies down to about 300 Hz.

[Ethan Winer]

Can anyone comment on this please?

Yes, that's mostly ridiculous.

The proof that bass traps straddling corners improve the response is all over the internet. But even when placed flat in the walls near corners, bass traps make a huge improvement. The graphs below show the Before / After response and ringing etc in the bedroom size space I used for my Hearing is Believing video.

--Ethan

[coachz]

Thanks. That is a great video too.