): The average steady-state noise from HVAC or masking systems. Measurement Requirements INTERNATIONAL STANDARD ISO 3382-3
Lp,A,S,4mcap L sub p comma cap A comma cap S comma 4 m end-sub 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 ): The average steady-state noise from HVAC or
): The distance from a speaker where the Speech Transmission Index (STI) falls below 0.50, the point at which concentration starts to improve. Background Noise Level ( Lp,A,Bcap L sub p comma cap A comma cap B end-sub DIN EN ISO 3382 3 E 2021 02 pdf