Acoustic Analysis and Electroglottography in Elite Vocal Performers

Published:November 02, 2016DOI:https://doi.org/10.1016/j.jvoice.2016.09.028

      Summary

      Background

      Acoustic analysis of voice (AAV) and electroglottography (EGG) have been used for assessing vocal quality in patients with voice disorders. The effectiveness of these procedures for detecting mild disturbances in vocal quality in elite vocal performers has been controversial.

      Objective

      To compare acoustic parameters obtained by AAV and EGG before and after vocal training to determine the effectiveness of these procedures for detecting vocal improvements in elite vocal performers.

      Materials and Methods

      Thirty-three elite vocal performers were studied. The study group included 14 males and 19 females, ages 18–40 years, without a history of voice disorders. Acoustic parameters were obtained through AAV and EGG before and after vocal training using the Linklater method.

      Results

      Nonsignificant differences (P > 0.05) were found between values of fundamental frequency (F0), shimmer, and jitter obtained by both procedures before vocal training. Mean F0 was similar after vocal training. Jitter percentage as measured by AAV showed nonsignificant differences (P > 0.05) before and after vocal training. Shimmer percentage as measured by AAV demonstrated a significant reduction (P < 0.05) after vocal training. As measured by EGG after vocal training, shimmer and jitter were significantly reduced (P < 0.05); open quotient was significantly increased (P < 0.05); and irregularity was significantly reduced (P < 0.05).

      Conclusions

      AAV and EGG were effective for detecting improvements in vocal function after vocal training in male and female elite vocal performers undergoing vocal training. EGG demonstrated better efficacy for detecting improvements and provided additional parameters as compared to AAV.

      Key Words

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      References

        • Barrreto-Munévar D.P.
        • Cháux-Ramos O.M.
        • Estrada-Rangel M.A.
        • et al.
        Factores ambientales y hábitos vocales en docentes y funcionarios de pre-escolar con alteraciones de voz.
        Rev Salud Pública. 2011; 13: 410-420
        • Puyuelo M.
        • Llinás M.
        Problemas de voz en docentes.
        Revista Logopedia, Fonoaudiología, Audiología. 1992; 12: 76-84
        • Van Houtte E.
        • Claeys S.
        • Wuyts F.
        • et al.
        The impact of voice disorders among teachers: vocal complaints, treatment-seeking behavior, knowledge of vocal care, and voice-related absenteeism.
        J Voice. 2011; 25: 570-575
        • Koufman J.A.
        Approach to the patient with a voice disorder.
        Otolaryngol Clin North Am. 1991; 24: 989-998
        • Ruotsalainen J.H.
        • Sellman J.
        • Lehto L.
        • et al.
        Interventions for preventing voice disorders in adults.
        Cochrane Database Syst Rev. 2007; (CD006372; pub2)https://doi.org/10.1002/14651858.CD006372
        • Hazlet D.E.
        • Duffy O.M.
        • Moorhead S.A.
        Review of the impact of voice training on the vocal quality of professional voice users: implications for vocal health and recommendations for further research.
        J Voice. 2011; 25: 181-191
        • Roy N.
        • Merril R.M.
        • Thibeault S.
        • et al.
        Prevalence of voice disorders in teachers and the general population.
        J Speech Lang Hear Res. 2004; 47: 281-293
        • Roy N.
        • Merril R.M.
        • Gray S.D.
        • et al.
        Voice disorders in the general population: prevalence, risk factors, and occupational impact.
        Laryngoscope. 2005; 115: 1988-1995
        • Banjara H.
        • Mungutwar V.
        • Singh D.
        • et al.
        Hoarseness of voice: a retrospective study of 251 cases.
        Int J Phonosurg Laryngol. 2011; 1: 21-27
        • Roy N.
        • Gray S.D.
        • Simon M.
        • et al.
        An evaluation of the effects of two treatment approaches for teachers with voice disorders: a prospective randomized clinical trial.
        J Speech Lang Hear Res. 2001; 44: 286-296
        • Linklater K.
        Freeing the Natural Voice: Imagery and Art in the Practice of Voice and Language.
        Drama Publisher, Hollywood, CA, USA2006
        • Broaddus-Lawrence P.L.
        • Treole K.
        • McCabe R.B.
        • et al.
        The effects of preventive vocal hygiene evaluation on the vocal hygiene habits and perceptual vocal characteristics of training singers.
        J Voice. 2000; 4: 58-71
        • Timmermans B.
        • Vanderwegen J.
        • De Bodt M.
        Outcome of vocal hygiene in singers.
        Curr Opin Otolaryngol Head Neck Surg. 2005; 13: 138-142
        • Speyer R.
        Effects of voice therapy: a systematic review.
        J Voice. 2008; 22: 565-580
        • Villafuerte-Gonzalez R.
        • Valadez-Jimenez V.M.
        • Hernandez-Lopez X.
        • et al.
        Acoustic analysis of voice in children with cleft palate and velopharyngeal insufficiency.
        Int J Pediatr Otorhinolaryngol. 2015; 79: 1073-1076
        • Brockmann-Bauser M.
        • Drinnan M.J.
        Routine acoustic voice analysis: time to think again?.
        Curr Opin Otolaryngol Head Neck Surg. 2011; 19: 165-170
        • Hosokawa K.
        • Ogawa M.
        • Hashimoto M.
        • et al.
        The reliability of EGG perturbation measures.
        J Voice. 2014; 28: 263e16-263e19
        • Krausert C.R.
        • Liang Y.
        • Zhang Y.
        • et al.
        Spatiotemporal analysis of normal and pathological human vocal fold vibrations.
        Amer J Otolaryngol. 2012; 33: 641-649
        • Avelino H.
        Acoustic and electroglottographic analyses of nonpathological, nonmodal phonation.
        J Voice. 2010; 24: 270-280
        • Daffern H.
        • Howard D.
        Voice source comparison between modern singers of early music and opera.
        Logoped Phoniatr Vocol. 2010; 35: 68-73
        • Yamour B.
        • Al-Zaghal Z.
        • El-Dahouk I.
        • et al.
        Mean contact quotient using electroglottography in patients with multiple sclerosis.
        J Voice. 2013; 27: 506-511
        • Bier S.
        • Watson C.L.
        • McCann C.M.
        Using the perturbation of the contact quotient of the EGG waveform to analyze age differences in adult speech.
        J Voice. 2014; 28: 267-273
        • Salomao G.L.
        • Sundberg J.
        What do male singers mean by modal and falsetto register? An investigation of the glottal voice source.
        Logoped Phoniatr Vocol. 2009; 34: 73-83
        • Kostas K.
        • Vikelis M.
        • Seikel J.A.
        • et al.
        The existence of phonatory instability in multiple sclerosis: an acoustic and electroglottographic study.
        Neurol Sci. 2010; 31: 259-268
        • Cavalli L.
        • Hartley B.
        The clinical application of electrolaryngography in a tertiary children's hospital.
        Logoped Phoniatr Vocol. 2010; 35: 60-67
        • Rossiter D.
        • Howard D.
        • DeCosta M.
        Voice development under training with and without the influence of real-time visually presented biofeedback.
        J Acoust Soc Am. 1996; 99: 3253-3256
        • Krausert C.
        • Olszewski A.
        • Taylor L.
        • et al.
        Mucosal wave measurement and visualization techniques.
        J Voice. 2011; 5: 395-405