Table 1.

Each subject’s notch frequency and notch depths for the threshold measures (SPL, FPL, and IPL) are provided. From the notch frequency, distance between the 4-mm probe microphone and TM was estimated as the $\frac{1}{4}$ wavelength distance.

ID	Notch (Hz)	SPL notch depth (dB)	FPL notch depth (dB)	IPL notch depth (dB)
S1	5279	−9.90	−4.55	−4.54
S2	5282	−19.30	−10.05	−9.85
S3	6610	−10.90	4.65	5.35
S4	4734	−0.35	4.55	3.86
S5	6352	−15.20	3.35	4.31
S6	5856	−19.60	−6.60	−6.20
S7	5173	−16.30	−4.50	−3.87
S8	4097	−4.05	−2.20	−2.64
S9	6296	−12.75	−1.75	−0.91
S10	4749	−17.45	−8.20	−7.88
S11	6392	−15.90	−5.90	−5.02
S12	7484	−6.45	6.95	7.51
S13	5657	−6.85	4.45	4.46
S14	5992	−10.95	−0.50	0.17
S15	6105	−11.35	−2.70	−1.80
S16	5884	−10.35	4.10	4.23
S17	6524	−12.40	4.75	5.57
S18	7346	−10.40	4.50	5.13
S19	7658	−5.70	0.65	0.91
S20	7405	−16.2	−4.65	−4.65
S21	4828	−8.55	−5.15	−5.94
S22	4993	−4.95	1.7	1.63
Mean	5940.73	−11.18a	−0.78	−0.46
Std. dev.	993.56	5.15	4.99	5.07

^aSPL notch depth (dB) was significantly different (p<0.05) from both FPL and IPL notch depths (dB).