Quote:
Originally Posted by rufus13  I'm not BK, but I can answer your question.
Sound Pressure Level is measured at the head position of the listener. Follow the K-system set up procedure of measuring one loudspeaker playing at a time.
Little speakers close or big speakers far, should be adjusted for the correct/comfortable level. Measuring close to the speakers will give an indication of much higher SPL than the listener is exposed to sitting in the normal mixing position.
Karl |
Yes, the SPL should be measured at the listening position. The actual loudness perceived and the potential damage cannot easily be measured by an SPL meter, the SPL meter is a guide to how "dangerous" it is getting, but the ear responds in loudness to: RMS level, short duration peak content, distortion, high frequencies more than low response... and total duration of exposure reduces our sensitivity and makes us vulnerable, complicating the matter.
There are standards set up by OSHA, but if we all followed that, we'd be mixing at 70 dB SPL for 3 hours and then going home till tomorrow (I'm exagerrating the exact numbers, but OSHA's specifications, the last I read them, are extremely conservative, and in our profession we're breaking those rules all the time... I hope OSHA is wrong, for our sake)
BK