by GlassWolf » Sat Mar 12, 2005 11:07 am
a lower number isn't always better or more accurate. It could just be a less sensitive mic. Just remember SPL is a relative scale, so it'll never be as objective for comparisons as say, quarter mile times or 0-60 acceleration times which are very specific units of measure.
SPL readings on an RTA are better used at a shop to see a base line reading then compare to changes to look for improvements. Once you've gotten all you can out of the system, then it's ready for events, to compete against others in the same environment, on the same measuring equipment.
These inconsistancies between mics, event locations, and so on are one of the reasons SPL competitions are no more objective than SQ events if you state you have a "172.2dB car" you can't really compare that to anything else unless both cars are side by side getting metered.. you may get different results a one event than you will at another.
a lower number isn't always better or more accurate. It could just be a less sensitive mic. Just remember SPL is a relative scale, so it'll never be as objective for comparisons as say, quarter mile times or 0-60 acceleration times which are very specific units of measure.
SPL readings on an RTA are better used at a shop to see a base line reading then compare to changes to look for improvements. Once you've gotten all you can out of the system, then it's ready for events, to compete against others in the same environment, on the same measuring equipment.
These inconsistancies between mics, event locations, and so on are one of the reasons SPL competitions are no more objective than SQ events if you state you have a "172.2dB car" you can't really compare that to anything else unless both cars are side by side getting metered.. you may get different results a one event than you will at another.