Is the Cepstral Analysis Sensitive Enough to Detect Untrained/Trained Resonant Voice in Healthy Subjects? A Preliminary Study

Year 2019, Volume: 6 Issue: 3, 254 - 263, 30.12.2019

Fatma Esen Aydınlı Esra Özcebe Jackie Gartner-schmıdt

Abstract

Objectives: In training resonant
voice, clinicians rely on listening and feeling sensations that are subjective
in nature. In the present study, the aim was to find out if cepstral analysis
was sensitive enough to distinguish a resonant voice from an unresonant voice
in healthy subjects. It was
suggested that the immediate effect of humming exercise could be shown by
accompanying higher Cepstral Peak Promince (CPP) and lower CPP standard
deviation (CPP SD). Materials and Methods: Study included 20 vocally
healty subjects aged between 20-30 years. All the participants were trained
Humming exercise by teaching airflow technique.
The recording protocol was repeated before and after resonant voice
training. The recordings were gathered for the three samples of a) Humming b) A
sentence weighted with nasal phonemes and c) A sentence weighted with all- voiced phonemes. Cepstral analysis
recordings were gathered by the ‘Kay Elemetrics Group CSL Model 4300B’ equipment via the Analysis of Dysphonia
in Speech and Voice software. Results:
In both sentences, CPP values were found
numerically higher and CPP SD values were found to be numerically lower after
training. The difference was found statistically significant for the
post-training value of voiced- weighted sentence (p=0.004). Conclusion: The higher numerical CPP values and lower CPP SD values for both
sentences after resonant voice training indicated that cepstral measures were
sensitive to detect trained/untrained resonant voice. However, these
preliminary findings should be investigated in a larger sample size in order to
achieve more reliable data.

Keywords

Resonant Voice, Humming, Voice

Supporting Institution

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Project Number

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Thanks

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