Acoustic and perceptual-auditory analysis of singing chorale boys

This study describes an experiment intended to verify the influence of ressonance exercises specifically designed to improve the quality of the voice through the comparison between results pre- and post-phonoaudiological intervention. We selected boy singers of the Canarinhos de Petropolis ensemble and evaluated them through an analyzis of the melodic curve peak and an acoustically treatment of their recordings using PRAAT software. The results demonstrate an expressive intensity gain between the first and second recordings, pointing out to the positive aspects of the interaction between the conductor and a choralvoice trained phonoaudiologist.