Minnaert resonance explanation for hot-versus-cold pouring sounds

Establish whether Minnaert resonance of larger entrained air bubbles generated during the pouring of hot water produces lower-frequency acoustic components that constitute the principal mechanistic explanation for the audible difference between pouring hot and cold water.

Background

Through spectral analysis and high-speed imaging, the authors observe that hot water pouring exhibits more low-frequency and fewer high-frequency components, and that larger bubbles appear more frequently when pouring hot water.

They explicitly conjecture that Minnaert-type pulsations of these larger bubbles produce characteristic lower-frequency emissions, potentially explaining the perceptual distinction.