The Effect of Electric Guitar Chord on the Sound Insulation of Acoustic Foam, Expanded Polystyrene Foam, and Polyurethane Foam
School Name
Spring Valley High School
Grade Level
10th Grade
Presentation Topic
Physics
Presentation Type
Non-Mentored
Abstract
The prevalence of excessive ambient noise from the modern environment overworks our auditory system, simultaneously diminishing attention spans and destroying hearing over time. In an attempt to block out sound, some people may cause more ear problems by using objects like earplugs, or the noise cancellation mode on Airpods. This research aims to evaluate a selection of foams to quantify their efficiency in insulating the high decibels coming from electric guitars. To test the insulation of each foam, a drywall box was made with the foam on the inside. The amplifier was placed, the noise was played through the electric guitar, and recorded with the app on a phone, NIOSH SLM. The results of this experiment concluded that acoustic foam is the best sound insulator when it is compared with polyurethane and expanded polystyrene foam (styrofoam) because it had a lower mean amplitude recorded. The data was analyzed using a Two-Way ANOVA and a One-Way ANOVA. The p-value was 0.002 (p<0.05), which means the null hypothesis is rejected and a significant difference does exist.
Recommended Citation
Patwardhan, Anish, "The Effect of Electric Guitar Chord on the Sound Insulation of Acoustic Foam, Expanded Polystyrene Foam, and Polyurethane Foam" (2024). South Carolina Junior Academy of Science. 513.
https://scholarexchange.furman.edu/scjas/2024/all/513
Location
RITA 365
Start Date
3-23-2024 9:15 AM
Presentation Format
Oral and Written
Group Project
No
The Effect of Electric Guitar Chord on the Sound Insulation of Acoustic Foam, Expanded Polystyrene Foam, and Polyurethane Foam
RITA 365
The prevalence of excessive ambient noise from the modern environment overworks our auditory system, simultaneously diminishing attention spans and destroying hearing over time. In an attempt to block out sound, some people may cause more ear problems by using objects like earplugs, or the noise cancellation mode on Airpods. This research aims to evaluate a selection of foams to quantify their efficiency in insulating the high decibels coming from electric guitars. To test the insulation of each foam, a drywall box was made with the foam on the inside. The amplifier was placed, the noise was played through the electric guitar, and recorded with the app on a phone, NIOSH SLM. The results of this experiment concluded that acoustic foam is the best sound insulator when it is compared with polyurethane and expanded polystyrene foam (styrofoam) because it had a lower mean amplitude recorded. The data was analyzed using a Two-Way ANOVA and a One-Way ANOVA. The p-value was 0.002 (p<0.05), which means the null hypothesis is rejected and a significant difference does exist.
