An Objective Approach to Identify Spectral Distinctiveness for Hearing Impairment

Table 1

The recognition rates (%) of syllables with identified regions enhanced by (a) 3 dB, (b) 6 dB, (c) 9 dB, and (d) 12 dB.

(a)

Manipulated syllable	Target syllable
	da	ga	ka	ba	pa	ta
da	—	88	90	90	88	90
ga	92	—	94	84	86	88
ka	88	86	—	90	92	96
ba	96	96	90	—	92	92
pa	84	88	88	86	—	90
ta	90	90	88	86	88	—

(b)

Manipulated syllable	Target syllable
	da	ga	ka	ba	pa	ta
da	—	88	90	90	88	90
ga	94	—	94	92	96	88
ka	88	96	—	90	92	96
ba	96	96	90	—	92	94
pa	90	88	88	90	—	90
ta	96	90	88	90	88	—

(c)

Manipulated syllable	Target syllable
	da	ga	ka	ba	pa	ta
da	—	90	92	92	90	92
ga	94	—	94	92	96	92
ka	94	96	—	90	94	96
ba	96	96	90	—	94	94
pa	90	94	92	90	—	92
ta	96	90	94	90	94	—

(d)

Manipulated syllable	Target syllable
	da	ga	ka	ba	pa	ta
da	—	90	92	92	90	92
ga	94	—	94	92	96	92
ka	94	96	—	90	92	96
ba	96	96	92	—	92	94
pa	90	94	92	90	—	92
ta	96	90	94	90	94	—