Clinical Use of Aided Cortical Auditory Evoked Potentials as a Measure of Physiological Detection or Physiological Discrimination

Table 2

Three recordings of hearing aid output. Specific characteristics of the three hearing aid recordings used in this study to elicit aided CAEPs.

	Hearing Aid	Gain at 1000 Hz^1	Input^2	Output SNR^3
Recording 1	A	30 dB SPL	25 dB SPL	11 dB
Recording 2	B	30 dB SPL	25 dB SPL	8 dB
Recording 3	B	10 dB SPL	45 dB SPL	23 dB

¹Gain with a 45 dB SPL input (electroacoustically verified).
²Input: input to hearing aid microphones in the sound field.
³Output SNR: difference between hearing-aid-processed signal and noise at 1000 Hz (1/3 octave band).