Templates for V-NISSG and DIN 15905-5
SPL Sense provides value profiles and live screens for the V-NISSG (Switzerland) and DIN 15905-5 (Germany). Which requirements apply to your event is set out in the original documents (below).
Value profiles
| Template | Values and thresholds (Notification / Warning / Limit) |
|---|---|
| VNISSG 93dBA | LAeq 60′: 91 / 92 / 93 · LAeq 5′: – / 92 / 93 · LAFmax 1′: Limit 125 |
| VNISSG 96dBA | LAeq 60′: 94 / 95 / 96 · LAeq 5′: – / 95 / 96 · LAFmax 1′: Limit 125 |
| VNISSG 100dBA | LAeq 60′: 98 / 99 / 100 · LAeq 5′: – / 99 / 100 · LAFmax 1′: Limit 125 |
| DIN 15905-5 | LAeq 30′: – / 95 / 99 · LAeq 5′: – / 95 / 99 · LCFmax 1′: Limit 135 |
The values can be adjusted per measurement, see Value profiles. The matching live screens have the same names as the templates, each also in a variant with leveler display.
SPL Sense calculates averages such as LAeq 30′ or LAeq 60′ every minute as a moving average over the last 30 or 60 minutes. The value on the full and half hour equals the average over the past half hour, i.e. the 30-minute block of DIN 15905-5. If LAeq 30′ stays below the limit at all times, all blocks are met as well.
For the peak level, the DIN 15905-5 template uses LCFmax 1′: the highest C-weighted Fast value (125 ms) within one minute.
Original documents
- Swiss Federal Office of Public Health (BAG/FOPH): Vollzugshilfe zur V-NISSG, Schall (enforcement guide) and Messverfahren zur Ermittlung von Schallpegeln an Veranstaltungen (measurement procedure), on the FOPH website
- DIN 15905-5:2022-07, Event technology – Sound engineering – Part 5: Measures to prevent the risk of hearing loss of the audience by high sound exposure of electroacoustic sound systems