Linoleum cylinder makes a big difference in low frequency absorption

A small sized tiled bathroom was used for this test.


Bass modes were very prominent on male singing voice.


Inserting in the small room a cylinder of 107cm height of linoleum roll almost extinguished the bass heavy resonances.


Cylinders has the added advantage of diffusing reflections. See drain pipes in reverberation chambers of Abbey Road Studios, BBC studios mentioned in an older post.