표 2. | Table 2. 연장 길이에 따른 청지각적 평가 결과 | Results of the auditory perceptual experiment

Stimulus (prolonged length in a unit of ms)	Arithmetic mean for EAI	Geometric mean for DME
285 (80)	1.47	22.25
365 (160)	1.62	29.51
445 (240)	2.00	40.12
525 (320)	2.09	38.19
605 (400)	1.97	71.03
685 (480)	2.29	69.10
765 (560)	2.26	72.75
845 (640)	2.29	82.92
925 (720)	2.29	79.41
1,085 (800)	2.79	85.48
1,165 (960)	2.94	92.59
1,245 (1,040)	3.32	95.60
1,325 (1,120)	3.38	112.52
1,405 (1,200)	3.15	110.76
1,485 (1,280)	3.59	115.17
1,565 (1,360)	3.44	121.17
1,645 (1,440)	3.65	136.5
1,725 (1,520)	2.62	146.06
1,805 (1,600)	3.74	159.72
1,885 (1,680)	3.35	144.65
1,965 (1,760)	3.85	176.74
2,045 (1,840)	3.82	173.42
2,125 (1,920)	4.15	169.79
2,205 (2,000)	4.21	201.05

1,005 ms의 경우 평가 기준치(modulus)로 사용되었기에 제외함.
EAI, equal-appearing interval scale; DME, direct magnitude estimation.