표 4 / Table 4 응용 입술 트릴 훈련 전후 음역대 측정치 비교 / Comparison of pitch range measures before and after Modified Voiced Lip Trill training (MVoLT)

Parameters	Before		After		t-value
	M	SD	M	SD
Maximum (Hz)	814.554	196.483	965.368	181.571	–5.309***
Minimum (Hz)	123.112	42.503	125.189	42.414	–0.949
Range (Hz)	691.442	166.072	840.179	164.137	–5.148***
Range(Semitone)	33.250	3.959	36.063	5.041	–4.040***

^*** p<.001