is the level of decibels for a piece of music or simply sound in SPI.
Cite this page: N., Pam M.S., "LOUDNESS LEVEL," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/loudness-level/ (accessed April 13, 2021).
is the level of decibels for a piece of music or simply sound in SPI.