Stochastic Signal Processing for Sound Environment System with Decibel Evaluation and Energy Observation

Table 2

Comparison between the experimental values and theoretically predicted values for several noise evaluation quantities in dB evaluated from Figures 2 and 3.

Noise evaluation quantities	𝐿5	𝐿10	𝐿50	𝐿90	𝐿95
Experimental values	63.6	63.1	60.5	58.2	57.6
Theoretical curve; (1st approximation)	63.7	63.0	60.4	57.7	57.1
Theoretical curve; (2nd approximation)	63.7	63.0	60.5	57.7	57.1
Theoretical curve; (3rd approximation)	63.2	62.5	60.5	58.2	57.7
Regression model; (1st order model)	61.9	61.5	59.6	58.4	57.9
Regression model; (2nd order model)	61.2	60.7	58.7	57.7	57.5
Regression model; (3rd order model)	62.1	61.6	59.4	58.4	58.1