The article reveals the researches on the characteristics, manifestations and defects of vocal technique with high impedance, which is the main criterion for evaluating the professionalism of each singer-performer of academic manner. The necessity and timeliness of research of the aforementioned problem is proved. The essence of the concepts of “vocal technique”, “defects of vocal sound”, “impedance”, “throat sound”, “nasal prism”, “forcing”, “detonation” is specified; the peculiarities of a number of methods and techniques for combating defects in vocal technique in general and vocal sound formation and sound behavior, in particular among students of artistic higher education institutions at vocational classes, are highlighted. As a result of working out the literature it has become clear that the problem of detection and struggle with imperfect vocal technique among pupils of artistic higher education is of paramount importance, since it is an actual task of musical-pedagogical education and one of the conditions for the development of the spiritual culture of mankind. The primary sources on the research problem interpret the singing activity as the main one, which allows, with the help of vocal hearing and muscular-vibration sensations, to form professional vocal techniques for future musicians, educators and performers, which is part of the improvement of their professional training. At the same time, the process of detecting and getting rid of the disadvantages of vocal technique is a painstaking systematic work in the classroom where the guiding vocabulary is a vocal professional technique with strong impedance and the world-renowned European academic opera-concert blended-cover style of singing, which is characterized by the covered sound, softness, roundness, callousness, homogeneity, naturalness of sound, coherence of registers, etc. The prospect of further research in the context of our study is to develop methodological support for the development of reflexive actions close to professional vocal technique with strong impedance, as well as in the formation of skills of independent work in the process of mastering vocal repertoire.