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  • Title: Vocal loading among day care center teachers.
    Author: Sala E, Airo E, Olkinuora P, Simberg S, Ström U, Laine A, Pentti J, Suonpää J.
    Journal: Logoped Phoniatr Vocol; 2002; 27(1):21-8. PubMed ID: 12375625.
    Abstract:
    Day care center teachers suffer from voice disorders more often than nurses do. Several risk factors may increase voice disorder prevalence of day care center teachers. The risk factors can be bound to their job content and manner of working i.e. having to raise their voice to attract the attention of the children and to offer them the possibility to perceive spoken information, or to the environment i.e. poor acoustics and excess background noise. The purpose of this study was to measure some of the risk factors for voice disorders of day care center teachers and of a control group (nurses); these were speaking times and speech levels. The background noise levels during activities and RASTI-values (Rapid Speech Transmission Index), i.e. measures of the acoustics of rooms, were also measured at the day care centers. It was found that day care center teachers use their voices more and with higher levels than nurses do. It was also found that the background noise levels are high, which is partly due to the poor acoustics (lack of sufficient attenuation) of the rooms. Control of excess background noise is of utmost importance both for speakers' speech production as well as children's speech recognition.
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