Table 1 Noise measurement parameters.
From: Noise and sound in the intensive care unit: a cohort study
Term | Description |
|---|---|
Decibel, dB | A logarithmic unit used to measure sound pressure level43 |
A-weighted sound level in decibels, dBA | A unit of measurement that adjusts sound levels to the sensitivity of the human ear to different frequencies. dBA represents the relative loudness of sound, as perceived by the human ear43 |
Equivalent continuous sound level, LAeq | The average sound pressure over an indicated time interval43 |
Maximum sound level, LAmax | The maximum time-weighted sound level (LAeq) measured during a time interval43 |
