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

Table 2

Frequency specific thresholds of N4 and N6 standard audiograms [39]. The threshold at 750 Hz for the N6 audiogram was originally 82.5 dB HL but had to be rounded to 85 dB HL to allow input into the verification system.

Audiogram	Frequency specific thresholds (dB HL)
	250	500	750	1 kHz	1.5 kHz	2 kHz	3 kHz	4 kHz	6 kHz
N4	55	55	55	55	60	65	70	75	80
N6	75	80	85	85	90	90	95	100	100