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Cognitive Research: Principles and Implications

Table 3 Functional impact—intelligibility and effort for human speakers

From: Speaking with a KN95 face mask: a within-subjects study on speaker adaptation and strategies to improve intelligibility

 

Intelligibility (%)

Speaker effort

 

Mean

SD

Mean

SD

Mask only

89.38

12.39

0.36

0.27

No mask

84.86

14.84

0.09

0.16

Clear + Mask

94.25

12.87

0.74

0.21

Loud + Mask

96.20

5.26

0.67

0.24

Slow + Mask

92.50

11.91

0.74

0.27

  1. Descriptive statistics mean and standard deviation (SD) for functional measures of transcription intelligibility and speaker effort
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