Electroacoustic Comparison of Hearing Aid Output of Phonemes in Running Speech versus Isolation: Implications for Aided Cortical Auditory Evoked Potentials Testing

Table 5

(a) Difference (dB) in overall phoneme level averaged across input levels (positive value indicates higher overall phoneme level in running speech). (b) Difference (dB) in phoneme onset level averaged across input levels (positive value indicates higher phoneme onset level in running speech).

(a)  

Hearing aid	Phoneme
	/a/	/i/	/u/	/s/	/∫/	/m/	/t/	/g/
1	0.68	0.56	3.88	2.66	3.47	1.58	2.45	2.25
2	3.10	2.53	3.40	1.16	2.16	3.27	6.54	6.03
3	2.46	3.58	3.45	2.89	2.29	2.20	5.15	6.23
4	4.56	4.72	1.84	3.22	3.24	3.44	5.23	4.69
5	−0.31	−0.01	−0.06	0.85	0.29	−2.20	−1.28	−0.46
6	1.19	0.55	0.75	0.40	0.61	0.44	2.60	1.50
7	0.62	0.70	1.73	0.60	0.59	−1.09	−1.05	0.77
8	0.62	0.92	1.46	1.55	1.34	0.31	3.00	5.22
9	0.70	0.25	1.85	0.53	0.42	0.34	−0.12	3.66
10	1.15	0.65	0.13	−0.43	0.67	−2.16	−0.61	−0.39

(b)  

Hearing aid	Phoneme
	/a/	/i/	/u/	/s/	/∫/	/m/
1	−0.39	0.01	2.53	2.23	3.64	0.52
2	2.44	2.81	3.69	1.81	3.74	3.95
3	4.11	6.53	6.81	7.06	5.69	3.04
4	4.70	5.37	2.28	7.48	4.45	4.31
5	−0.47	−0.71	−0.43	0.71	1.37	−2.59
6	1.72	0.70	1.05	0.05	1.26	−0.38
7	0.12	0.84	0.99	0.29	0.66	−2.23
8	−0.17	1.78	2.06	1.27	2.67	0.81
9	0.55	0.51	1.25	0.34	0.82	0.38
10	1.33	1.36	0.19	0.61	0.19	−2.61