Journal of Undergraduate Research
Keywords
equalizing sound fields, energy density, graphic equalizer
College
Physical and Mathematical Sciences
Department
Physics and Astronomy
Abstract
After becoming familiar with measurement techniques and equipment, I measured the pressure of the sound field in 5 cm increments between the frequencies of 50 and 1600 Hz inside an impedance tube with a rigid termination. I then analyzed this data and found that the sound field was not uniform and therefore, not ideal for listening. I also calculated the average mean squared pressure in the field. I then used the pressure data to estimate the particle velocity using Euler’s equation and found the total acoustic energy density. I compared these quantities and found that a single energy density measurement was a much better approximation of the average pressure than a single pressure measurement.
Recommended Citation
Shepherd, Micah and Leishman, Dr. Timothy
(2013)
"Equalizing Sound Fields Using Energy Density,"
Journal of Undergraduate Research: Vol. 2013:
Iss.
1, Article 2732.
Available at:
https://scholarsarchive.byu.edu/jur/vol2013/iss1/2732