Vrijednosti akustičkih parametara glasa tijekom menstrualnog ciklusa

master's thesis

• Title (english): Values of the acoustic voice parameters during the menstrual cycle
• Author: Berta Bregović
• Mentor: Ana Bonetti (mentor)
• Committee member: Ana Bonetti (predsjednik povjerenstva)
• Committee member: Jasmina Ivšac Pavliša (član povjerenstva)
• Committee member: Ivana Šimić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Education and Rehabilitation Sciences; Zagreb
• Defense date and country: 2024-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Speech Therapy

Abstract

Cilj ovog rada bio je ispitati mijenjaju li se vrijednosti akustičkih parametara glasa tijekom menstrualnog ciklusa objektivnom metodom, odnosno akustičkom analizom glasa usporediti kakve su vrijednosti tijekom menstruacije i u sredini menstrualnog ciklusa i subjektivno procjeniti razlikuje li se glas u spomenutim točkama mjerenja. Sve ispitanice bile su ženskog spola (N=31), nepušačice, nisu bile vokalni profesionalci, nisu koristile hormonsku kontracepciju, bez problema s glasom, ginekoloških problema, problema sa štitnjačom. Procjena se sastojala od snimanja fonacije glasa /a/ i čitanja teksta. Objektivna procjena sastojala se od akustičke obrade i analize fonacije glasa /a/, a subjektivna je procjena uključivala čitanje teksta. Akustička je obrada provedena pomoću programa PRAAT. Promatrane su sljedeće varijable: F0, jitter, shimmer, omjer šumnog i harmoničnog dijela spektra (HNR) t emaksimalno vrijeme fonacije (MVF). Statističkom obradom i subjektivnom procjenom nisu pronađene statistički značajne razlike vrijednosti akustičkih parametara glasa tijekom menstrualnog krvarenja i u sredini menstrualnog ciklusa što je u suglasnosti s ranijim istraživanjima koja također nisu utvrdila da postoje razlike u navedenim točkama mjerenja. Utvrđeno je da postoji značajna pozitivna povezanost između duljine trajanja ciklusa imaksimalnog vremena fonacije tijekom menstrualnog krvarenja čime je dulji menstrualni ciklus povezan s duljim maksimalnim vremenom fonacije.

Abstract (english)

The aim of this study was to examine whether the values of acoustic voice parameters changeduring the menstrual cycle using an objective method, specifically acoustic voice analysis, andto compare the values during menstruation and mid-cycle, as well as to subjectively assesswhether the voice differs at these measurement points. All participants were female (N=31),non-smokers, non-vocal professionals, did not use hormonal contraception, and had no voiceproblems, gynecological issues or thyroid problems. The assessment consisted of recordingvoice phonation /a/ and reading a text. The objective assessment involved the acousticprocessing and analysis of voice phonation /a/, while the subjective assessment included textreading. Acoustic processing was performed using the PRAAT software. The followingvariables were observed: F0, jitter, shimmer, harmonic-to-noise ratio (HNR), and maximumphonation time (MPT). Statistical analysis and subjective assessment did not find statisticallysignificant differences in the values of acoustic voice parameters during menstrual bleeding andmid-cycle, which is consistent with previous research that also did not find differences at thesemeasurement points. It has been established that there is a significant positive correlationbetween the duration of the cycle and the maximum phonation time during menstrual bleeding,indicating that a longer menstrual cycle is associated with a longer maximum phonation time.

• Keywords: menstrualni ciklus; glas; hormoni; akustički parametri glasa
• Keywords (english): menstrual cycle; voice; hormones; acoustic voice parameters
• Language: croatian
• URN:NBN: urn:nbn:hr:158:827395
• Study programme: Title: University graduate study of Speech and Language Pathology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni magistar/magistra logopedije (sveučilišni magistar/magistra logopedije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-10-28 14:22:02