Lp,A,S,4mcap L sub p comma cap A comma cap S comma 4 m end-sub
): The A-weighted sound pressure level of speech at a 4-meter distance, indicating how much nearby surfaces reflect sound. Comfort Distance ( rCr sub cap C DIN EN ISO 3382 3 E 2021 02 pdf
): A newer metric that has largely replaced "privacy distance" in recent revisions, indicating the distance at which speech becomes comfortable for others. Distraction Distance ( rDr sub cap D Lp,A,S,4mcap L sub p comma cap A comma