Evaluating the influence of warmup on singing voice quality using acoustic measures

Ofer Amir*, Noam Amir, Orit Michaeli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Vocal warmup is generally accepted as vital for singing performance. However, only a limited number of studies have evaluated this effect quantitatively. In this study, we evaluated the effect of vocal warmup on voice production, among young female singers, using a set of acoustic parameters. Warmup reduced frequency-perturbation (p < 0.001) and amplitude-perturbation values (p < 0.05). In addition, warmup increased singer's formant amplitude (p < 0.05) and improved noise-to-harmonic ratio (p < 0.05). Tone-matching accuracy, however, was not affected by warmup. The effect of vocal warmup on frequency-perturbation parameters was more evident among mezzo-soprano singers than it was among soprano singers. It was also more evident in the low pitch-range than in the higher pitch-ranges (p < 0.05). The results of this study provide valid support for the advantageous effect of vocal warmup on voice quality and present acoustic analysis as a valuable and sensitive tool for quantifying this effect.

Original languageEnglish
Pages (from-to)252-260
Number of pages9
JournalJournal of Voice
Issue number2
StatePublished - Jun 2005


  • Acoustic analysis
  • Singing voice
  • Voice quality
  • Warmup


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