Experimental Study on the Sound Absorption Properties of Finger Millet Straw, Darbha, and Ripe Bulrush Fibers

Table 1

Physical properties of fibers [14].

Fiber properties	Finger millet straw fiber (F)	Darbha fiber (D)	Ripe bulrush fiber (R)
Fiber length (mm)	80 ± 2.5	80 ± 4	80 ± 3
Fiber diameter (μm)	70 ± 15	60 ± 5	64.8 ± 12
Density (g/cm^3)	1.33 ± 0.1	1.07 ± 0.1	1.23 ± 0.1