Research Article|Articles in Press

Is Cepstral Peak Prominence a Measure of Vocal Fatigue in Temple Priests: A Pilot Study



      Considering cepstral analysis of voice as a measure of overall severity of dysphonia, we tried to investigate if these measures could be considered as a metric of vocal fatigue as well. Since voice quality changes are seen as a result of vocal fatigue, we wanted to find out if there were any correlations between the cepstral measures, vocal fatigue symptoms, and auditory perceptual evaluation of voice in professional voice users.


      The pilot study was conducted on 10 temple priests belonging to the Krishna Consciousness Movement. We conducted a pre-post voice evaluation, which included recording voices before the beginning of any temple preaching in the morning and after all the preaching sessions in the evening. The priests also filled in the Vocal Fatigue Index (VFI) questionnaire twice (morning and evening), and all the voice samples were analyzed for GRBAS (Grade, Roughness, Breathiness, Asthenia, and Strain voice quality) rating by speech language pathologists with voice expertise. Correlations were obtained between the acoustic measures, VFI responses, and auditory perceptual evaluations.


      The findings of our pilot study didn't show any correlations between the cepstral measures and the questionnaire responses or with the perceptual ratings. However, the cepstral measures were slightly higher for evening recordings than the morning recordings. Our participants did not experience or perceive any voice symptoms or vocal fatigue.


      Despite more than 10 hours of voice use per day for over 10 years, our participants did not experience any voice symptoms or vocal fatigue. This finding indicates that there may be diverse reasonings and opinions about the occurrence of voice problems in various professional voice users. This is particularly because the participants’ responses to vocal fatigue symptoms had more of a psychological explanation (faith, self-power, etc.) rather than any physiological changes in the vocal apparatus.

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        • Solomon N.P.
        Vocal fatigue and its relation to vocal hyperfunction.
        Int J Speech Lang Pathol. 2008; 10: 254-266
        • Nanjundeswaran C.
        • Jacobson B.H.
        • Gartner-Schmidt J.
        • et al.
        Vocal Fatigue Index (VFI): development and validation.
        J Voice. 2015; 29: 433-440
        • Koufman J.A.
        • Isaacson G.
        The spectrum of vocal dysfunction.
        Otolaryngol Clin North Am. 1991; 24: 985-988
        • Devadas U.
        • Jose N.
        • Gunjawate D.
        Prevalence and influencing risk factors of voice problems in priests in Kerala.
        J Voice. 2016; 30: 771.e27-771.e32
        • Buekers R.
        • Bierens E.
        • Kingma H.
        • et al.
        Vocal load as measured by the voice accumulator.
        Folia Phoniatr Logop. 1995; 47: 252-261
        • Phyland D.
        The measurement and effects of vocal load in singing performance. How much singing can a singer sing if a singer can sing songs?.
        Perspect ASHA Spec Interest Gr. 2017; 2: 79-88
        • Schloneger M.
        • Manternach B.
        Technology translated to teaching: exploring vocal dosimetry.
        J Sing. 2020; 76: 319-326
        • Lei Z.
        • Fasanella L.
        • Martignetti L.
        • et al.
        Investigation of vocal fatigue using a dose-based vocal loading task.
        Appl Sci (Basel). 2020; 10: 1192
        • Niebudek-Bogusz E.
        • Kotylo P.
        • Politanski P.
        • et al.
        Acoustic analysis with vocal loading test in occupational voice disorders: outcomes before and after voice therapy.
        Int J Occup Med Environ Health. 2008; 21: 301-308
        • Niebudek-Bogusz E.
        • Kotylo P.
        • Sliwinska-Kowalska M.
        Evaluation of voice acoustic parameters related to vocal-loading test in professionally active teachers with dysphonia.
        Int J Occup Med Environ Health. 2007; 20: 25
        • Laukkanen A.-M.
        • Ilomäki I.
        • Leppänen K.
        • et al.
        Acoustic measures and self-reports of vocal fatigue by female teachers.
        J Voice. 2008; 22: 283-289
        • Astolfi A.
        • Bottalico P.
        • Accornero A.
        • et al.
        Relationship between vocal doses and voice disorders on primary school teachers.
        in: EURONOISE 2012: Proceedings of 9th European Conference on Noise Control. 2012: 55-60
        • Heman-Ackah Y.D.
        • Michael D.D.
        • Baroody M.M.
        • et al.
        Cepstral peak prominence: a more reliable measure of dysphonia.
        Ann Otolo Rhinol Laryngol. 2003; 112: 324-333
        • Patel R.R.
        • Awan S.N.
        • Barkmeier-Kraemer J.
        • et al.
        Recommended protocols for instrumental assessment of voice: American Speech-Language-Hearing Association expert panel to develop a protocol for instrumental assessment of vocal function.
        Am J Speech Lang Pathol. 2018; 27: 887-905
        • Anand S.
        • Bottalico P.
        • Gray C.
        Vocal fatigue in prospective vocal professionals.
        J Voice. 2021; 35: 247-258
        • Welham N.V.
        • Maclagan M.A.
        Vocal fatigue: current knowledge and future directions.
        J Voice. 2003; 17: 21-30
        • Wolfe V.
        • Martin D.
        Acoustic correlates of dysphonia: type and severity.
        J Commun Disord. 1997; 30: 403-416
        • Fujiki R.B.
        • Chapleau A.
        • Sundarrajan A.
        • et al.
        The interaction of surface hydration and vocal loading on voice measures.
        J Voice. 2017; 31: 211-217
        • Guzmán M.
        • Malebrán M.C.
        • Zavala P.
        • et al.
        Acoustic changes of the voice as signs of vocal fatigue in radio broadcasters: preliminary findings.
        Acta Otorrinolaringol (Esp). 2013; 64: 176-183
        • Narasimhan S.
        • Soumya M.
        Spectral and cepstral measures of vocal fatigue in Indian heavy metal vocalists.
        J Indian Speech Lang Hear Assoc. 2020; 34: 241
        • Aishwarya S.
        • Narasimhan S.
        The effect of a prolonged and demanding vocal activity (Divya Prabhandam recitation) on subjective and objective measures of voice among Indian Hindu priests.
        Speech Lang Hear. 2021; 25: 498-506
        • Karulkar R.R.
        • Gunjawate D.R.
        Voice-related problems, vocal and non-vocal habits in naradiya kirtankars: a preliminary study.
        J Voice. 2021; (S0892-1997(21)00198-3 Advance online publication)
        • Devadas U.
        • Hegde M.
        • Maruthy S.
        Prevalence of and risk factors for self-reported voice problems among Hindu temple priests.
        J Voice. 2019; 33: 805.e1-805.e12
        • Dejonckere P.
        • Wieneke G.
        GRBAS-scaling of pathological voices: reliability, clinical relevance, and differentiated correlation with acoustic measurements, especially with cepstral measurements.
        in: Proceedings of the 22th World Congress IALP. 1992
        • Hirano M.
        Clinical examination of voice.
        Disord Hum Commun. 1981; 5: 1-99
        • Svec J.G.
        • Granqvist S.
        Guidelines for selecting microphones for human voice production research.
        Am J Speech Lang Pathol. 2010; 19: 356-368
        • Phadke K.V.
        • Laukkanen A.-M.
        • Ilomäki I.
        • et al.
        Cepstral and perceptual investigations in female teachers with functionally healthy voice.
        J Voice. 2020; 34: 485.e33-485.e43
        • Shue Y.-L.
        • Chen G.
        • Alwan A.
        On the interdependencies between voice quality, glottal gaps, and voice-source related acoustic measures.
        in: Eleventh Annual Conference of the International Speech Communication Association. 2010
        • Balasubramanium R.K.
        • Karuppali S.
        • Bajaj G.
        • et al.
        Acoustic-perceptual correlates of voice in Indian Hindu purohits.
        J Voice. 2019; 33: 804.e1-804.e4