ERIC Number: EJ1131884
Record Type: Journal
Publication Date: 2017-Feb
Abstractor: As Provided
Reference Count: N/A
Vocal Ergonomics in the Workplace: Heating, Ventilation, and Air-Conditioning Method Influences on Vocal Comfort and Function
Sandage, Mary J.; Rahn, Keith A.; Smith, Audrey G.
Journal of Speech, Language, and Hearing Research, v60 n2 p355-363 Feb 2017
Purpose: The purpose of this study was to examine the influence of the heating, ventilation, and air-conditioning method on voice function following a voicing task using ecologically valid offices, one with radiant HVAC and one with forced air. Method: A total of 12 consented participants (6 women, 6 men) narrated a video in each of 4 environmental conditions in a within-between repeated-measures design. Acoustic data were collected with an ambulatory phonation monitor and perceived phonatory effort was determined following the voicing task. Data were analyzed using a within-between repeated-measures analysis of variance with significance set at a < 0.05. Results: Perceived phonatory effort did not differ between environments; however, a significant difference in vocal amplitude between 2 trials was identified for the male participants and physiologically significant differences in vocal amplitude were identified for male and female participants. Conclusions: The findings suggest that perceived phonatory effort may not be a sensitive measure of vocal function differences following a voicing task in ecologically valid office spaces despite significant acoustic findings. Future research should address longer exposure to environmental differences combined with a longer voicing task within ecologically valid work spaces as well as the recruitment of participants who have particular vulnerability to environmental perturbations.
Descriptors: Climate Control, Work Environment, Speech, Environmental Influences, Statistical Analysis, Gender Differences, Acoustics
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A