Room Acoustics (09-15-21)

Researchers continue to investigate the psychological implications of acoustic experiences.  A team lead by Sierra-Polanco reports that “Three independent room acoustic parameters were considered: gain (alteration of the sidetone or playback of one’s own voice), reverberation time, and background noise. An increase in the sidetone led to a decrease in vocal sound pressure levels, thus increasing vocal comfort and vocal control. This effect was consistent in the different reverberation times considered. Mid-range reverberation times (T30 ≈ 1.3 s) led to a decrease in vocal sound pressure level along with an increase in vocal comfort and vocal control, however, the effect of the reverberation time was smaller than the effect of the gain. The presence of noise amplified the aforementioned effects for the variables analyzed.”

Tomas Sierra-Polanco, Lady Cantor-Cutiva, Eric Hunter, and Pasquale Bottalico.  2021.  “Changes of Voice Production in Artificial Acoustic Environments.”  Frontiers in Built Environment, vol. 7, 666152,