Panels Manufactured from Vegetable Fibers: An Alternative Approach for Controlling Noises in Indoor Environments

<table>(a) Handmade panels of <svg height="13.45" id="M1" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 18.35 13.45" width="18.35" xmlns="http://www.w3.org/2000/svg">
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</svg> sisal, <svg height="13.45" id="M3" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 18.35 13.45" width="18.35" xmlns="http://www.w3.org/2000/svg">
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</svg> açaí and (4) coconut fibers, (b) coconut/sisal multifiber panel, and (c) Palm/sisal mixed panel.</table>

Advances in Acoustics and Vibration

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Figure 4

Figure 4: Panels Manufactured from Vegetable Fibers: An Alternative Approach for Controlling Noises in Indoor Environments 