Study on the Sound Quality of Steady and Unsteady Exhaust Noise

Table 1

Objective parameters and satisfaction values of samples.

Sample number	loudness	sharpness	Roughness	fluctuation	A sound pressure	Kurtosis	satisfaction	Satisfaction normalization
stable1	25.01	1.65	0.75	0.290	62.9	0.04	62.11	0.582
stable2	25.31	0.91	0.34	0.016	63.8	-0.06	87.86	0.859
stable3	29.69	1.96	0.89	0.01	64.2	-0.21	78.47	0.758
stable4	32.61	1.67	1.84	0.005	64.5	0.13	60.07	0.560
...	...	...	...	...	...	...	...	...
stable49	29.26	1.72	0.144	0.14	63.51	-0.11	69.57	0.662
stable50	45.68	1.64	0.26	0.12	67.98	-0.52	29.82	0.235
accele1	39.29	1.75	1.15	0.11	66.24	0.13	41.62	0.362
accele2	45.41	1.64	0.34	0.15	66.88	-0.35	30.63	0.246
accele3	30.59	1.24	2.18	0.06	63.21	-0.92	62.86	0.590
...	...	...	...	...	...	...	...	...
accele9	27.71	1.88	0.72	0.11	61.98	0.05	71.77	0.686
accele10	46.49	1.51	1.1	0.24	67.88	-0.22	34.97	0.291