A physiological and acoustic study on voiced bilabial fricative /β:/ as a vocal exercise

Laukkanen, Anne-Maria; Lindholm, Päivi; Vilkman, Erkki; Haataja, Kari; Alku, Paavo

doi:10.1016/s0892-1997(96)80020-8

Cited by 72 publications

(41 citation statements)

References 17 publications

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“…they seemed to have adopted a more relaxed voice produc tion. This is in line with the sensations of the subjects: Both in the present study and in the previous studies the subjects commented that after vocal exercising they felt phonation to be easier than before it [7,9]. In most cases a slight increase in pressure was seen together with increased flow.…”

Section: Discussionsupporting

confidence: 92%

“…Increased supraglottic pressure has been reported to increase the activity of vocalis and expiratory muscles [18], It is possible that after the removal of a vocal tract constriction the adductory and ex piratory activity decreases even below the lev el that existed before the constriction. How ever, the results obtained by Laukkanen et al [7] using electromyography with surface elec trodes suggest that the laryngeal activity de creased in the production of /p:/. The possibil ity of artefacts inherent in the method used must be taken into account.…”

Section: Discussionmentioning

confidence: 98%

“…Laukkanen et al [7] studied the effects of the prolonged production of the voiced bila bial fricative /J3:/ on the phonatory and voice quality of subjects with normal voices. In the production of /p:/ as compared to vowel pho nation the muscular activity in the laryngeal region seemed to be lower in most cases.…”

Section: Introductionmentioning

confidence: 99%

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On the Effects of Various Vocal Training Methods on Glottal Resistance and Efficiency

Laukkanen¹,

Lindholm²,

Vilkman

1995

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The glottal resistance, i.e. the ratio of subglottic pressure to glottal flow, and the laryngeal efficiency, i.e. the ratio of oral acoustic power to aerodynamic subglottal power (multiplication ofsubglottig pressure and glottal flow), were measured for 11 subjects (3 males) with normal voices and for 1 female patient with glottal insufficiency in the repeated production of the nonsense word /paappa/ immediately before and after 1 min of vocal exercising with /β:, m:/ and phonation into a narrow glass tube. For the subjects with normal voices the glottal resistance decreased in most cases and the laryngeal efficiency in half of the cases due to increased glottal flow. In contrast, for the patient the glottal resistance and efficiency increased due to decreased glottal flow. The results suggest that the vocal exercises instantly affected the control of the glottal width.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 98%

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On the Effects of Various Vocal Training Methods on Glottal Resistance and Efficiency

Laukkanen¹,

Lindholm²,

Vilkman

1995

Folia Phoniatr Logop

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“…Dromey et al [38] and Ramig et al [39] found that after Lee Silverman voice treatment, patients with Parkinson's disease had increased vocal loudness, phonatory stability, and fundamental frequency variability by increasing subglottal air pressure, vocal fold adduction, and maximum flow declination rate. Furthermore, Elliot et al [40] and Laukkanen et al [41] documented that vocal economy was improved by decreasing muscular activity in the laryngeal muscles and lowering laryngeal position in vowel production after vocal training. Schneider et al [42] suggested that constant overload training on respiratory and laryngeal muscles can change control mechanisms by enhancing muscular fitness resulting in better vocal function.…”

Section: Explanations For the Differences In Vocal Range Profiles Betmentioning

confidence: 99%

Voice Range Profiles for Tonal Dialect of Min

Chen¹

2007

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The influence of frequency and intensity in Min dialect on maximum vocal performance has not been investigated. The purposes of this study are (1) to investigate the physiological frequency and intensity ranges of the tonal dialect of Min, and (2) to compare the physiological frequency and intensity ranges of Min to those of nontonal languages. The subjects were 40 normal Taiwanese adults. All subjects were native Min speakers. The lowest frequency, the highest frequency, the maximum range of vowel frequency change (MRVFC), soft voice, loud voice, and the dynamic intensity range were obtained from voice range profiles. The independent t test was used to find the statistical significance of all frequency and intensity variables between female and male speakers in vocal range profiles. The results revealed that female speakers had significantly greater lowest frequency and highest frequency than male speakers. Male speakers had a significantly greater MRVFC than female speakers. Moreover, Min speakers had a greater MRVFC and dynamic intensity range than most of nontonal language speakers. The data provide an assessment tool of vocal function for Min speakers.

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“…34,36 We also used the Accent method, 37 with the emphasis on diaphragmatic breathing and rhythmic vowel production and voiced bilabial fricative exercises. 38,39 The Accent method has been found to be efficient for functional and organic voice disorders. 17,40,41 Furthermore, voiced bilabial fricative exercises have a favorable effect on the voice quality possibly because of a warm-up effect and improved vocal economy.…”

Section: Voice Therapymentioning

confidence: 99%

The Effectiveness of Group Therapy for Students With Mild Voice Disorders: A Controlled Clinical Trial

et al. 2006

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A physiological and acoustic study on voiced bilabial fricative /β:/ as a vocal exercise

Cited by 72 publications

References 17 publications

On the Effects of Various Vocal Training Methods on Glottal Resistance and Efficiency

On the Effects of Various Vocal Training Methods on Glottal Resistance and Efficiency

Voice Range Profiles for Tonal Dialect of Min

The Effectiveness of Group Therapy for Students With Mild Voice Disorders: A Controlled Clinical Trial

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