Duringthetest,levelofthenoisewasadjustedadaptively basedontheparticipant’sresponseinaone-down,one-up procedure as described by Wu et al (2016). Specifically, the noise level was initially changed in 4 dB steps for the first five sentences in the list, and then was reduced to a 2dB step size for there maining 15 sentences.Of the 20 total HINT sentences that were presented, the SNRs of the last 16 sentences were averaged and increased by 2 dB to obtain the SNR-50. Based on the calculated SNR-50, six SNR conditions from 0 to 110 dB in 2 dB steps were created and used in the primary speech perception task.