Effect of reverberation time on vocal fatigue

Pasquale Bottalico, Simone Graetzer, Eric J. Hunter

Research output: Contribution to journalConference articlepeer-review


Vocal effort is a physiological magnitude that accounts for the changes in voice production that occur as vocal loading, which is the stress inflicted on the vocal folds when speaking for long periods, increases. It has been quantified in terms of Sound Pressure Level (SPL). In previous research, it has been shown that prolonged vocal effort can lead to vocal fatigue. An experiment was conducted to measure the effect of reverberation time on vocal fatigue, by means of an evaluation of variation in vocal effort over time. Twenty subjects were recorded while reading a text in anechoic, semi-reverberant and reverberant rooms in the presence of babble noise. Withinsubject variation in SPL was measured per task. It was found that SPL tended to increase less over time in the semireverberant environment than in the anechoic or reverberant environments. This finding suggests that subjects experienced less short-term vocal fatigue in the semi-reverberant environment.

Original languageEnglish (US)
Pages (from-to)494-497
Number of pages4
JournalProceedings of the International Conference on Speech Prosody
StatePublished - 2016
Externally publishedYes
Event8th Speech Prosody 2016 - Boston, United States
Duration: May 31 2016Jun 3 2016


  • Reverberation time
  • Room acoustics
  • Vocal effort
  • Vocal fatigue

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language


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