The following acoustic indices have been added to the advanced search tool of the database:
- Rw + C: Sound reduction index of an element, A-weighted [dB].
- Rw + Ctr: Sound reduction index of an element for urban traffic noise, A-weighted [dB].
- Rw + C [5000 Hz]: Sound reduction index of an element, A-weighted, broadened to 5000 Hz [dB].
- Rw + Ctr [5000 Hz]: Sound reduction index of an element for urban traffic noise, A-weighted, broadened to 5000 Hz [dB].
