BruceD
Screenwriter
- Joined
- Apr 12, 1999
- Messages
- 1,220
SPL level sensitivity is directly related to frequency content. This is the purpose of the "A" and "C" weighting on the SPL meter. Most SPL levels you see referenced for damaging to the hearing are "A" weighted levels.
i.e. just listening to higher SPL levels of music for a few hours (especially if the SPL meter is recording lots of bass) may certainly be OK, I'm talking "C" weighting and 85+dB.
If you do an experiment in your listening room, you will probably find the "C" weighting measures about 10dB less than the "A" for the same input. The "A" weighting is biased towards the frequencies our ears are most sensitive to, 1000-4000Hz.
The workplace SPL limits for human exposure is listed as an "A" weighted chart in the RS meter's manual.
i.e. just listening to higher SPL levels of music for a few hours (especially if the SPL meter is recording lots of bass) may certainly be OK, I'm talking "C" weighting and 85+dB.
If you do an experiment in your listening room, you will probably find the "C" weighting measures about 10dB less than the "A" for the same input. The "A" weighting is biased towards the frequencies our ears are most sensitive to, 1000-4000Hz.
The workplace SPL limits for human exposure is listed as an "A" weighted chart in the RS meter's manual.