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Κυριακή 9 Ιανουαρίου 2022

Bhramari Pranayama

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Abstract

The study's aim was (1) To describe the acoustic characteristics of Bhramari pranayama, and (2) to compare the acoustic features of nasal consonant /m/ and the sound of Bhramari pranayama produced by yoga trainers. Cross-sectional study design. Thirty-three adult male yoga trainers performed five repeats of nasal consonant /m/ and Bhramari pranayama. These samples were recorded into Computerized Speech Lab, Kay Pentax model 4500b using a microphone (SM48). Formant frequencies (fF1, fF2, fF3, & fF4), formant bandwidths (BF1, BF2, BF3, & BF4), anti-formant, alpha and beta ratio were analyzed. Nasal consonant /m/ had higher fF2 and anti-formant compared to Bhramari pranayama. Statistical significant differences were noted in fF2, BF3, and anti-formant s. Bhramari pranayama revealed a low alpha ratio and a higher beta ratio than /m/. However, these differences were not statistically significant. Findings are discussed from acoustic and physiological perspectives. Bhramari pranayama was assumed to be produced with a larger pharyngeal cavity and narrower velar passage when compared to nasal consonant /m/. Verification at the level of the glottis and with aerodynamic parameters may ascertain the above propositions.

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