Tools And Calculators
Hunston provides tools and calculators to help customers understand the SPL on the specification sheet and SPL based on the actual distance the customer uses.
SPL and distance calculator
Sound pressure level (SPL) will be affected by changes in measurement distance. HUNSTON has developed a calculator to help customers understand the SPL on the specification sheet and SPL based on actual distance used by customer.
First input the SPL and measured distance from specification sheet into the "Original" fields. In the "Result" fields, input the actual distance and the calculated SPL value will be provided.
First input the SPL and measured distance from specification sheet into the "Original" fields. In the "Result" fields, input the actual distance and the calculated SPL value will be provided.
Distance (Original)
SPL (Original)
dB
Distance (Measure)
SPL (Result)
dB
Formula explained:
ΔSPL (Result) = SPL (Original) + 20.log ( Distance (Original) ÷ Distance (Measure) )
ΔSPL : SPL on the specification sheet
Distance (Original) : Measuring distance on the specification sheet
Distance (Measure) : The SPL at this distance you want to measure
ΔSPL : SPL on the specification sheet
Distance (Original) : Measuring distance on the specification sheet
Distance (Measure) : The SPL at this distance you want to measure