Table 1 Face mask conditions for experiments.

From: Unveiling optimal mother wavelets by COPRAS Method Analyzing speech signals despite face mask and shield obstacles

Case number

Condition

Case 1

Without face shield and without mask

Case 2

Without face shield and Surgical mask

Case 3

Without face shield and Cloth mask

Case 4

Without face shield and Double mask

Case 5

Without face shield and N95 mask

Case 6

Face shield and without mask

Case 7

Face shield and Surgical mask

Case 8

Face shield and Cloth mask

Case 9

Face shield and Double mask

Case 10

Face shield and N95 mask