Exam Preview for 36680: The Effect of Transparent Masks for Speech

The Effect of Transparent Masks for Speech Recognition in Noise

Please note: exam questions are subject to change.

1. Use of opaque masks generally cause ___________compared to speaking with no mask. A reduction of 10-15 dB in high frequencies A reduction of 20 dB in low frequencies Less than 1 dB across the frequency range An increase of 10 dB across all frequencies
2. Subjective responses to questionnaires about the use of face masks revealed Only persons with hearing loss reported difficulties. Over 50% reported moderate to severe difficulties resulting from reduced acoustic and visual cues. Health care workers did not report difficulties because they were accustomed to masks. Lack of awareness that masks caused an increase in acoustic cues because speakers used greater vocal intensity.
3. An online platform to collect percent correct speech recognition scores virtually is Dropbox Zoom Survey Monkey Qualtrics
4. Speech recognition with a transparent mask when measured with auditory/visual cues was: About the same as with an opaque masks. Significantly better than with an opaque mask by 10% Significantly better than with no mask. Not possible to measure due to fog in the mask.
5. Communication with a transparent vs opaque mask can result in changes other than speech recognition that include A trend toward decreased confidence. Significant increase in frustration when seeing only half of one's face. Significant increase in confidence and decrease in concentration. Limited awareness of emotions