Normative Voice Range Profiles in Vocally Trained and Untrained Children Aged Between 7 and 10 Years

Usefulness of Spectral Range Profile in Quantitative Assessment of Voice Quality in Adults and Children

“…Some recent studies on children confirmed the VRP dependence on voice/musical background [33,34], but we have not found any data in literature on an analysis of the coefficient of sound in children.…”

Effects of Vocal Training on Singing and Speaking Voice Characteristics in Vocally Healthy Adults and Children Based on Choral and Nonchoral Data

“…It has been established that voice training enlarges singing voice capabilities for both adults and children, with the profiles of trained voices demonstrating greater dynamic and frequency ranges, and also increased VRP area. 1,[5][6][7][8][9][10][19][20][21][22][23][24] Several investigations have addressed the question of impact of singing voice training on speaking voice compared with untrained vocalists. 13,14,[24][25][26][27][28] Some of those studies show that trained adult vocalists have the capability to produce greater speaking frequency and intensity ranges than do untrained individuals and may change voice pitch more than nonsingers without stressing the voice.…”

“…1,19,23,[26][27][28][29][30][31][32] The VRP is known to be sensitive to gender and age, consequently separate norms for male and female subjects and children are reasonable. 3,9,14,[22][23][24][25][30][31][32][33][34][35] Although the significant differences between prepubescent child and adult voices are well established, only limited data on normal vocal capabilities for trained voices in school-aged children is available. 8,[20][21][22] This may be because of some difficulties in the testing of children (more time consuming, less precise) and of variability of the data as a result of rapid and obvious changes in the anatomy and physiology of the vocal tract during development.…”

Analysing and Understanding the Singing Voice: Recent Progress and Open Questions

“…The voice of children has not been intensively studied yet. However, the importance of voice training [23] and the particularities in physiology and voice properties such as voice range profile [24] of children are subjects of current research.…”