Lessac's y–buzz as a pedagogical tool in the teaching of the projection of an actor's voice.

Acoustic and Perceptual Analyses of Brazilian Male Actors' and Nonactors' Voices: Long-term Average Spectrum and the “Actor's Formant”

“…For instance, Leino observed that there are voices with little energy at the high frequency region and yet evaluated as ''good.' ' 7 In this study, the alpha ratio was significantly greater for actors in all loudness levels, that is, the actors showed a more subtle decline of the LTAS curve than nonactors, corroborating the results of Leino, 7 Bele, 2 Munro et al, 12 and Pinczower and Oates. 13 The actor's voices were, however, not evaluated as more tense than the nonactors' voices.…”

“…2,7,12,13 According to the results, the actors' voices were perceived as louder and more projected than the nonactors' voices on all levels. The mean SPL, however, did not differ significantly between actors and nonactors, which made it easier to compare the other variables of the study, as the changes that occur in the spectrum with the intensity variation are already known.…”

“…Other studies confirm the tendency of an AF in the male actors' voice spectra. 2,7,8,12,13 The AF can be intensified with specific voice training directed to the enhancement of high frequencies in the spectrum. 10 Nawka et al 14 identified in the voice spectrum envelope of German actors, an energy increase between 3.150 and 3.700 Hz that would be related to a ''loud and shiny'' quality of voice and a more gentle fall of the actors' voice spectral curve in habitual and strong intensities when compared to normal and moderately rough voices.…”

Towards demystifying voice-building in the new millenium

“…(For a detailed description of this experiment the reader is referred to Munro, et al: 1996) The findings from this research project compared very favorably with Leino's (1995) research:…”