Back to Search
Start Over
Changes on Speech Transmission Characteristics by Types of Mask
- Source :
- Audiology and Speech Research. 16:295-304
- Publication Year :
- 2020
- Publisher :
- Korean Academy of Audiology, 2020.
-
Abstract
- Purpose: Given the increased levels of fine and ultrafine dust, as well as the spread of COVID-19, current opinion is that most people will wear a face mask such a KF94 mask for a long time To test speech transmission through the face masks, various types of masks including dust masks available in the market at the time of the study were tested under laboratory conditions Methods: Fourteen types of masks worn on a head and torso simulator (HATS) and test signals were played on a speaker installed in the mouse position of the HATS Speech Transmission Index (STI) and the speech level in the octave band were measured at distances of 1 m and 2 m Results: STI at a distance of 2 m was decreased to 3 4-5 7% and speech levels in the octave band at 4 kHz or higher were also decreased when wearing disposable masks and a cotton mask KF80 and KF94 masks showed decreased STI similar to those of disposable masks;however, a decrease in the speech level was observed at the octave bands of above 2 kHz Dust masks and single-cartridge half-face respirators showed approximately 11 2% and 33 7% to 39 3% decreases in STI levels, respectively Conclusion: When wearing masks, STI and the speech level was decreased in the high-frequency bands However, speech level differences at high frequencies may be related to the increased voice level of the speaker and the understanding of consonants with the masks for several hours in living and working environments © 2020 Korean Academy of Audiology
- Subjects :
- medicine.medical_specialty
Health (social science)
business.product_category
Coronavirus disease 2019 (COVID-19)
Computer science
Octave band
Audiology
Octave (electronics)
030210 environmental & occupational health
Face masks
03 medical and health sciences
Speech and Hearing
0302 clinical medicine
Otorhinolaryngology
Transmission (telecommunications)
medicine
Respirator
030223 otorhinolaryngology
business
Speech transmission index
Subjects
Details
- ISSN :
- 26355027 and 26355019
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- Audiology and Speech Research
- Accession number :
- edsair.doi...........e93c8f751c0416b9478fdb2499569425