Utjecaj buke i mikroklime na kvalitetu glasa kuharica u studentskom restoranu

master's thesis

• Title (english): The impact of noise and microclimate on female cook workers' voice quality in the student restaurant
• Author: Ana Branković
• Mentor: Mladen Heđever (mentor)
• Committee member: Mladen Heđever (predsjednik povjerenstva)
• Committee member: Emica Farago (član povjerenstva)
• Committee member: Ana Bonetti (član povjerenstva)
• Granter: University of Zagreb; Faculty of Education and Rehabilitation Sciences; Zagreb
• Defense date and country: 2018-12-19, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Speech Therapy

Abstract

Cilj ovog rada bio je ispitati utjecaj buke i mikroklimatskih čimbenika na kvalitetu glasa kuharica u studentskom restoranu brze hrane u Zagrebu. Provedena je analiza akustičkih karakteristika glasa kuharica na početku i na kraju radnog vremena u prijepodnevnoj i poslijepodnevnoj smjeni. Izmjerena je prosječna razina buke za svaku radnu smjenu. Koristeći Praat program za akustičku analizu, ispitani su akustički parametri na uzorku fonacije glasa /a/ i kratkog govora (brojanje do 15). Parametri koji su se promatrali jesu fundamentalna frekvencija fonacije, fundamentalna frekvencija govora, jitter, shimmer te omjer harmoničnog i šumnog dijela spektra (HNR). Osim toga, ispitanice su ispunile upitnik Indeks vokalnih teškoća-10. Iako su individualnom analizom glasova ispitanica uočene promjene na gotovo svim akustičkim parametrima, statistička analiza nije pokazala značajne razlike na tim parametrima na kraju radnoga dana. Analiza odgovora upitnika Indeks vokalnih teškoća-10 ukazuje na činjenicu da gotovo sve ispitanice ponekad osjećaju vokalne probleme ili doživljavaju nelagodne situacije povezane s njihovim glasom i/ili komunikacijom. Statistička je analiza, također, pokazala neke značajne korelacije između određenih varijabli Upitnika, pušenja i alergija.

Abstract (english)

The aim of this thesis was to examine the impact of noise and microclimatic factors on voice quality of a group of twelve female cook workers in the student fast food restaurant in Zagreb. Accordingly, acoustic characteristics of their voices at the beginning and at the end of a working day were examined and compared. The examination was carried out for both working shifts – the morning one, as well as the afternoon one. Acoustic characteristics of their voices were examined using acoustic analysis as an objective method. Prolonged phonation of the /a/ vowel and a short spontaneous speech were acoustically analyzed using Praat Program. Participants also fulfilled Voice handicap index-10. Observed acoustic parameters were fundamental frequency obtained from phonation, fundamental frequency obtained from spontaneous speech (counting), jitter, shimmer, and harmonic-to-noise ratio (HNR). Although there were some changes among almost all the acoustic parameters, which were showed through individual analysis of each participants' voice, statistical analysis of acoustic measurements showed no significant changes in the observed parameters at the end of the working day. Analysis of the answers of the Voice handicap index-10 showed that almost all participants sometimes exhibit vocal problems or experience uncomfortable situations related to their voice and/or communication. Also, statistical analysis showed some significant correlations between some of the VHI-10 variables, smoking and allergies.

• Keywords: buka; mikroklima; kuharice; vokalni zamor; akustička analiza glasa
• Keywords (english): noise; microclimate; cook workers; vocal fatigue; acoustic analysis of voice
• Language: croatian
• URN:NBN: urn:nbn:hr:158:101440
• Study programme: Title: Speech and Language Pathology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra logopedije (magistar/magistra logopedije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-03-04 09:33:48