표 2. | Table 2. 집단 별 소음강도에 따른 발화의 음도 변화 | Mean F0 variations in speech (Hz)

	Quiet	Noise 55 dB	Noise 70 dB
Children	240.97(29.80)	254.06(36.50)	257.55(46.29)
Adults	122.03(12.35)	124.06(12.67)	127.89(17.05)

Values are presented as mean (SD).