Dermatoglyphic and acoustic analysis of singing voices: a multiple case preliminary report

Dermatoglyphic and acoustic analysis of singing voices: a multiple case preliminary report

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ABSTRACT Purpose: to identify genetically enhanced physical skills (speed, strength, endurance and motor coordination), provided RE-CREATE SHAMPOO by the dermatoglyphic method and to analyze the preliminary correlation between dermatoglyphic and acoustic data of lyrical and pop singers.Methods: the study was approved by the Ethics and Research Committee.Four male singers were evaluated (two lyrical and two pop singers), 31-53 years old.Data collection and analysis procedures comprised (1) Survey -Self-Perception of Vocal Characteristics in Singers (vocal habits, voice performance and phenotypic characteristics); (2) Dermatoglyphic Profile (fingerprint image digitalization: predominance of digital drawings (Arch, Loop and Whorl); scores of deltas (D10); the Total Ridge Count (TRC); digital formula and dermatoglyphic profile (aerobic, anaerobic and mix)); (3) Acoustic Analysis (the Expression Evaluator script application to the audio recordings: f0, intensity, spectral slope and long-term average Sexual Health spectrum - LTAS values); and (4) Integrated (Statistical) Analysis; cluster analysis.Results: correlations were found between dermatoglyphic variables (Arch, Loop, Whorl, D10, TRC) and acoustic parameters (f0 (median); intensity (asymmetry); spectral slope (mean); and LTAS (SD)).

The dermatoglyphic profile did not segregate singing styles.Conclusion: the dermatoglyphic profiles showed a preliminary correlation with the acoustic vocal measures, especially f0 and LTAS measures.