Sound Pressure Level

Term Category: Acoustics

Sound Pressure Level (SPL) is a measure of the intensity or loudness of sound. It quantifies the pressure variations caused by sound waves in a given environment. SPL is expressed in decibels (dB) on a logarithmic scale, relative to a standard reference level, typically 20 μPa which is considered the threshold of human hearing. It provides a standardized way to compare and describe sound levels, ranging from faint whispers to powerful concerts or jet engine noise.

Josh Manuel

Josh Manuel, a voice instructor and founder of VoiceScience, is dedicated to empowering singers by providing evidence-based techniques and knowledge for enhanced performance and vocal health. His expertise and passion in the field of vocal science have made him a trusted resource for singers seeking to improve their skills and achieve their full potential.

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