Why you should choose hemp canvas over open cell foam for acoustic treatment

by Reiko Takahashi May 2, 2022

Over time I have done a number of tests on this unique material.

The hemp canvas is 16.5oz and about 1/16" thick. I Purchased the canvas from the infamous "Hemp Traders"

Direct through tests-

Reflection testing -

Baseline Waterfall 1" open cell foam vs hemp canvas SPL hemp canvas vs open cell acoustic foam SPL 2 layers of hemp canvas vs 1" open cell acoustic foam (SPL)

2 layers of hemp canvas vs open cell acoustic foam (SPL) 3 layers of hemp canvas vs 1" open cell acoustic foam

Baseline waterfall 1" open cell acoustic foam (Waterfall) 1 layer hemp canvas (Waterfall)

1 layer of hemp canvas (waterfall)

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Why you should choose hemp canvas over open cell foam for acoustic treatment

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