A digital tool designed to measure sound pressure levels (SPL) in decibels (dB), facilitating the analysis and quantification of auditory environments. These applications leverage device microphones to provide real-time or recorded sound measurements, displayed numerically and often graphically. For example, an engineer might use this type of program on a smartphone to assess noise pollution near a construction site.
The capability to accurately gauge sound levels is crucial in various domains, from occupational safety and environmental monitoring to audio engineering and acoustic research. Its utilization can help ensure compliance with noise regulations, optimize audio systems, and mitigate potential hearing damage. Early iterations of sound level meters were bulky and expensive; modern software offers a more accessible and often portable alternative, broadening its applicability.