Short answer
When designing vocal training or assessment tools for adolescents, recognize that fundamental acoustic properties like vibrato may develop naturally and are not solely a product of specific ensemble participation.
- Field
- Human Factors
- Source
- Academic Publication (2020)
- Method
- Quantitative acoustic analysis
- Sample
- 157 participants
- Evidence
- Moderate effect
Objective acoustic measures of vibrato rate and extent in adolescent singers do not significantly differ between those participating in choir and those in instrumental music programs. This human factors research insight is drawn from a 2020 study published in Academic Publication. Using Quantitative acoustic analysis with 157 participants, researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing vocal training or assessment tools for adolescents, recognize that fundamental acoustic properties like vibrato may develop naturally and are not solely a product of specific ensemble participation.
Vibrato Rate and Extent in Adolescent Singers Remain Consistent Regardless of Choral Enrollment
Objective acoustic measures of vibrato rate and extent in adolescent singers do not significantly differ between those participating in choir and those in instrumental music programs.
Academic Publication · 2020
Key Findings
- 01Vibrato rate (M = 4.58 Hz, SD = 1.45 Hz) and vibrato extent (M = 1.45% or 25 cents, SD = 0.86% or 15 cents) did not differ significantly between students enrolled in choir and those not enrolled in choir.
- 02Singing Power Ratio (SPR) also did not differ significantly between the two groups.
- 03Significant within-subjects differences were found for singers based on vowel production.
Application
Design takeaway
When designing vocal training or assessment tools for adolescents, recognize that fundamental acoustic properties like vibrato may develop naturally and are not solely a product of specific ensemble participation.
How to apply
When developing educational materials or assessment rubrics for adolescent singers, focus on techniques that enhance overall vocal production rather than assuming specific acoustic outcomes are solely dependent on choir participation.
Project actions
- 01When studying vocal performance, consider measuring objective acoustic data alongside subjective feedback.
- 02If your design project involves music education, investigate the baseline acoustic properties of voices before implementing training interventions.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Objective acoustic measurement provides quantifiable data.
- +Inclusion of students from multiple schools enhances generalizability.
Limitations
The study did not account for the quality of instruction or the amount of practice time for each student, which could influence vocal development.
Reliability & validity
The use of standardized acoustic measurement techniques and a relatively large sample size contribute to the reliability and validity of the findings regarding vibrato characteristics. However, the study's validity could be enhanced by controlling for a wider range of potential confounding variables.
Think critically
If choral training doesn't significantly impact vibrato rate and extent in adolescents, what other factors (e.g., genetics, general physical development, non-choral musical engagement) might be more influential, and how could a design project investigate these?
Design Principles
"Acknowledge inherent physiological development in user-centered design for performance-related skills."
This finding challenges assumptions that formal choral training is the sole driver of specific vocal acoustic characteristics in developing voices. It suggests that inherent physiological factors or other unmeasured influences may play a more significant role in shaping these vocal qualities during adolescence.
What This Means for Your Design
Even if some students are in choir and others aren't, their singing 'wobble' (vibrato) sounds pretty much the same. This means that growing up might be changing their voices more than just being in choir.
How to use in your project
- 1.Use findings to justify the need for objective acoustic analysis in your own design project if it involves vocal performance or training.
- 2.Cite this study to support claims about the development of vocal characteristics in adolescents.
Add to My Project
Quick Cite
Paragraph starter
Research by Wallace (2020) on secondary school singers found that objective acoustic measures of vibrato rate and extent did not significantly differ between students enrolled in choir and those in instrumental music classes. This suggests that inherent physiological development during adolescence may play a more substantial role in shaping these vocal characteristics than formal choral training alone, a factor to consider when designing interventions aimed at vocal improvement.
Source
Academic Publication
Acoustic Measures of the Singing Voice in Secondary School Students
journal · 2020
View sourceQuestions About This Research
- What does the research say about vibrato rate and extent in adolescent singers remain consistent regardless of choral enrollment?
- When designing vocal training or assessment tools for adolescents, recognize that fundamental acoustic properties like vibrato may develop naturally and are not solely a product of specific ensemble participation. Evidence: Academic Publication (2020).
- Why does "Vibrato Rate and Extent in Adolescent Singers Remain Consistent Regardless of Choral Enrollment" matter for design?
- This finding challenges assumptions that formal choral training is the sole driver of specific vocal acoustic characteristics in developing voices. It suggests that inherent physiological factors or other unmeasured influences may play a more significant role in shaping these vocal qualities during adolescence.
- How can designers apply this research?
- When designing vocal training or assessment tools for adolescents, recognize that fundamental acoustic properties like vibrato may develop naturally and are not solely a product of specific ensemble participation.
- What were the main findings?
- Vibrato rate (M = 4.58 Hz, SD = 1.45 Hz) and vibrato extent (M = 1.45% or 25 cents, SD = 0.86% or 15 cents) did not differ significantly between students enrolled in choir and those not enrolled in choir.. Singing Power Ratio (SPR) also did not differ significantly between the two groups.. Significant within-subjects differences were found for singers based on vowel production.
- What research method was used?
- Quantitative acoustic analysis with 157 participants.
- How strong is the evidence?
- Evidence strength is rated Moderate effect, based on a 2020 journal from Academic Publication.
- What should I do differently in my next project?
- When developing educational materials or assessment rubrics for adolescent singers, focus on techniques that enhance overall vocal production rather than assuming specific acoustic outcomes are solely dependent on choir participation.
- What are the limitations?
- The study did not control for prior musical experience outside of formal schooling, individual practice habits, or specific vocal pedagogical approaches used by different instructors.