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People who use their voice professionally are at risk for occupational voice disorders. Voice disorders may involve abnormality of the larynx, which causes the laryngeal mechanism to fail to meet the functional voicing needs of the speaker. Human voice production is a combination of anatomical structures, physiological mechanisms and acoustic output, which are unique to each person. To explore voice and its production objectively, acoustic evaluation procedures are to be used. Due to an increasing number of employees working in professions where voice is the main tool of trade, there will be a growing need in the future to monitor and analyse voice production in realistic environments, such as a teacher speaking in a classroom. So far, we have been investigating call centre customer service advisers in their natural environment. The results are encouraging in showing that the area of occupational voice research can benefit from the acoustic research methods in order to gain wider knowledge of the vocal behaviour (different voice qualities, voice loading, etc.) of speech professionals.
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Recent publications on the topic
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- Lehto L, Alku P, Bäcktröm T, Vilkman E. "Voice symptoms of call-centre customer service advisors experienced during a work-day and effects of a short vocal training course." Logopedics Phoniatrics Vocology, vol. 30(1), pp. 14-27, 2005.
- Lehto L, Rantala L, Vilkman E, Alku P, Bäcktröm T. "Help-desk personnel's voice symptoms during the working day and the subjective effects of a short-term voice training course". Folia Phoniatrica et Logopaedica, vol. 55, pp. 163-176, 2003.
- Juha Vintturi, Paavo Alku, Eeva Sala, Marketta Sihvo, Erkki Vilkman: Loading-related subjective symptoms during a vocal loading test with special reference to gender and some ergonomic factors. Folia Phoniatrica et Logopaedica, Vol. 55, No. 2, pp. 55-69, 2003.
- Juha Vintturi, Paavo Alku, Eija-Riitta Lauri, Eeva Sala, Marketta Sihvo, Erkki Vilkman: Objective analysis of vocal warm-up with special reference to ergonomic factors. Journal of Voice, Vol. 15, No. 1, pp. 36-53, 2001.
- Juha Vintturi, Paavo Alku, Eija-Riitta Lauri, Eeva Sala, Marketta Sihvo, Erkki Vilkman: The effects of post-loading rest on acoustic parameters with special reference to gender and ergonomic factors. Folia Phoniatrica et Logopaedica, Vol. 53, No. 6. pp. 338-350, 2001.
- Erkki Vilkman, Eija-Riitta Lauri, Paavo Alku, Eeva Sala, Marketta Sihvo: Effects of prolonged oral reading on F0, SPL, subglottal pressure and amplitude characteristics of glottal flow waveforms, Journal of Voice, Vol. 13, No. 2, pp. 303-315, 1999.
- Erkki Vilkman, Eija-Riitta Lauri, Paavo Alku, Eeva Sala, Marketta Sihvo: Ergonomic conditions and voice, Logopedics, Phoniatrics and Vocology, Vol. 23, pp. 11-20, 1998.
- Eija-Riitta Lauri, Paavo Alku, Erkki Vilkman, Eeva Sala, Marketta Sihvo: Effects of prolonged oral reading on time-based glottal flow waveform parameters with special reference to gender differences, Folia Phoniatrica et Logopaedica, Vol. 49, pp. 234-246, 1997.
- Erkki Vilkman, Eija-Riitta Lauri, Paavo Alku, Eeva Sala, Marketta Sihvo: Loading changes in time-based parameters of glottal flow waveforms in different ergonomic conditions, Folia Phoniatrica et Logopaedica, Vol. 49, pp. 247-263, 1997.
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